CN110018845A - Metadata version control methods and device - Google Patents
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- CN110018845A CN110018845A CN201910305308.XA CN201910305308A CN110018845A CN 110018845 A CN110018845 A CN 110018845A CN 201910305308 A CN201910305308 A CN 201910305308A CN 110018845 A CN110018845 A CN 110018845A
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Abstract
The application provides a kind of metadata version control methods and device.The application is by parsing the metadata version comparison instruction received, obtain the first metadata version and the respective version number of the second metadata version, then search the corresponding metadata feature set of Liang Ge version number, and extract every metadata corresponding state group and timestamp group in two metadata feature set, finally two data time stamps according to each metadata in correspondent time group, two data modes of each metadata in corresponding states group are compared, to identify changing condition of each metadata between first metadata version and second metadata version according to comparing result, to realize that computing resource consumes metadata version comparison process low and that comparison is high-efficient, it avoids impacting the operation of other applications.
Description
Technical field
This application involves data Treatment process fields, in particular to a kind of metadata version control methods and device.
Background technique
With the continuous development of network technology, effect of the data Treatment process in data overall management field is more heavy
It wants, and data Treatment process can periodically acquire metadata during realization and generate multiple metadata versions.
Currently, data administer administrative staff after obtaining each metadata version, it can be by the corresponding member of each metadata version
Data acquisition system is stored, and when the collection of metadata for needing to choose different editions carries out version comparison, calls directly correspondence
The collection of metadata of version carries out data comparison, to obtain corresponding version comparing result.But this metadata version comparison
Scheme needs to consume a large amount of computing resource, and time-consuming for whole comparison process, easily influences the normal of other applications
Operation.
Summary of the invention
In order to overcome above-mentioned deficiency in the prior art, the application's is designed to provide a kind of metadata version to analogy
Method and device can save computing resource, and quickly complete metadata version comparison process, avoid to other applications
Operation impact.
For method, the embodiment of the present application provides a kind of metadata version control methods, which comprises
Metadata version comparison instruction is obtained, and version comparison instruction is parsed, obtains the first metadata version
Sheet and the respective version number of the second metadata version；
According to first metadata version and the respective version number of the second metadata version, two versions are searched
This number corresponding metadata feature set, wherein the metadata feature set includes every metadata in corresponding version number
Collection of metadata in identity, data mode and data time stamp；
Each item member number is extracted from the two metadata feature set found according to the identity of every metadata
According to corresponding state group and timestamp group, wherein the state group includes corresponding metadata in described two metadata feature set
In corresponding data mode, the timestamp group include corresponding metadata in described two metadata feature set respectively
Corresponding data time stamp；
According to two data time stamps of each metadata in correspondent time group, by each metadata in corresponding states
Two data modes in group compare, and according to comparing result identify each metadata first metadata version with
Changing condition between second metadata version.
For device, the embodiment of the present application provides a kind of metadata version comparison device, and described device includes:
Command analysis module is compared, for obtaining metadata version comparison instruction, and instruction is compared to the version and is carried out
Parsing, obtains the first metadata version and the respective version number of the second metadata version；
Characteristic set searching module, for respective according to first metadata version and second metadata version
Two corresponding metadata feature set of version number are searched, wherein the metadata feature set includes by version number
Identity, data mode and data time stamp of the every metadata in the collection of metadata of corresponding version number；
Contrast characteristic's extraction module, for according to the identity of every metadata from two metadata features found
The corresponding state group of each metadata and timestamp group are extracted in set, wherein the state group includes corresponding metadata in institute
Corresponding data mode in two metadata feature set is stated, the timestamp group includes corresponding metadata described two
Corresponding data time stamp in metadata feature set；
Characteristic Contrast identification module, for two data time stamps according to each metadata in correspondent time group,
Two data modes of each metadata in corresponding states group are compared, and each metadata is identified according to comparing result
Changing condition between first metadata version and second metadata version.
In terms of existing technologies, the application has the advantages that
The application obtains the first metadata version and the by parsing to the metadata version comparison instruction received
The respective version number of binary data version then searches the corresponding metadata feature set of Liang Ge version number, and extracts
Every metadata corresponding state group and timestamp group in two metadata feature set, finally according to each metadata right
Two data time stamps in timestamp group are answered, two data modes of each metadata in corresponding states group are carried out pair
Than to identify each metadata between first metadata version and second metadata version according to comparing result
Changing condition avoid to realize that computing resource consumes the low and high-efficient metadata version comparison process of comparison to other
The operation of application program impacts.
To enable the above objects, features, and advantages of the application to be clearer and more comprehensible, the application preferred embodiment is cited below particularly,
And cooperate appended attached drawing, it is described in detail below.
Detailed description of the invention
Technical solution in ord to more clearly illustrate embodiments of the present application, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only some embodiments of the application, therefore is not construed as pair
The restriction of the application protection scope, for those of ordinary skill in the art, without creative efforts, also
Other relevant attached drawings can be obtained according to these attached drawings.
Fig. 1 is the block diagram provided by the embodiments of the present application for calculating equipment；
Fig. 2 is one of the flow diagram of metadata version control methods provided by the embodiments of the present application；
Fig. 3 is the two of the flow diagram of metadata version control methods provided by the embodiments of the present application；
Fig. 4 is the three of the flow diagram of metadata version control methods provided by the embodiments of the present application；
Fig. 5 is one of the block diagram that metadata version provided by the embodiments of the present application compares device；
Fig. 6 is the two of the block diagram that metadata version provided by the embodiments of the present application compares device；
Fig. 7 is the three of the block diagram that metadata version provided by the embodiments of the present application compares device.
Icon: 10- calculates equipment；11- memory；12- processor；13- communication unit；100- metadata version comparison dress
It sets；110- compares command analysis module；120- characteristic set searching module；130- contrast characteristic's extraction module；140- feature pair
Compare identification module；150- data content display module；160- data mode determining module；170- increment storage regulation module；
180- characteristic set generation module.
Specific embodiment
To keep the purposes, technical schemes and advantages of the embodiment of the present application clearer, below in conjunction with the embodiment of the present application
In attached drawing, the technical scheme in the embodiment of the application is clearly and completely described, it is clear that described embodiment is
Some embodiments of the present application, instead of all the embodiments.The application being usually described and illustrated herein in the accompanying drawings is implemented
The component of example can be arranged and be designed with a variety of different configurations.
Therefore, the detailed description of the embodiments herein provided in the accompanying drawings is not intended to limit below claimed
Scope of the present application, but be merely representative of the selected embodiment of the application.Based on the embodiment in the application, this field is common
Technical staff's every other embodiment obtained without creative efforts belongs to the model of the application protection
It encloses.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
In the description of the present application, it should be noted that term " first ", " second ", " third " etc. are only used for distinguishing and retouch
It states, is not understood to indicate or imply relative importance.It for the ordinary skill in the art, can be with concrete condition
Understand the concrete meaning of above-mentioned term in this application.
With reference to the accompanying drawing, it elaborates to some embodiments of the application.In the absence of conflict, following
Feature in embodiment and embodiment can be combined with each other.
Fig. 1 is please referred to, is the block diagram provided by the embodiments of the present application for calculating equipment 10.In the embodiment of the present application
In, the calculating equipment 10 can be used for carrying out data improvement, and for the metadata of each version obtained in data governance process
Set carries out version comparison.Wherein, the calculating equipment 10 includes that metadata version compares device 100, memory 11, processor
12 and communication unit 13.The memory 11, the processor 12 and each element of the communication unit 13 are direct between each other
Or be electrically connected indirectly, to realize the transmission or interaction of data.For example, the memory 11, the processor 12 and described
These elements of communication unit 13 can be realized between each other by one or more communication bus or signal wire to be electrically connected.Wherein,
The calculating equipment 10 may be, but not limited to, PC (personal computer, PC), server, tablet computer,
Personal digital assistant (personal digital assistant, PDA), mobile internet surfing equipment (mobile Internet
Device, MID) etc..
In the present embodiment, the memory 11 can be used for storing in collection of metadata corresponding to each metadata version
The data content of every metadata carry out increment storage, it is right that the memory 11 can also be used to storing each metadata version institute
The metadata feature set answered.Wherein, the corresponding version number of each metadata version, the version number is for indicating corresponding element
The identity information of versions of data, the metadata feature set include every metadata in the collection of metadata of corresponding version number
Identity, data mode and data time stamp.The corresponding identity in different metadata versions of same metadata
Identical, the data time stamp indicates that the time point value that corresponding metadata is acquired, the data mode indicate corresponding element
Variable condition of the data between two neighboring version.
Wherein, the data mode includes newly-increased state, deletes state and modification state.The newly-increased state indicates to correspond to
Metadata being increased newly between two neighboring version, the deletion state indicate corresponding element data between two neighboring version
Be deleted, the modification state indicates corresponding element data being modified between two neighboring version.
In the present embodiment, the memory 11 is also used to store computer instruction or computer program, the processor
12 after receiving and executing instruction, can correspondingly execute the computer instruction or the computer program.
In the present embodiment, the processor 12 can be general processor, including central processing unit (Central
Processing Unit, CPU), graphics processor (Graphics Processing Unit, GPU), network processing unit
(Network Processor, NP) etc..General processor can be microprocessor or the processor is also possible to any routine
Processor etc., may be implemented or execute disclosed each method, step and the logic diagram in the embodiment of the present application.
In the present embodiment, the communication unit 13 is set for establishing the calculating equipment 10 by network with outside other
Communication connection between standby, and pass through the network sending and receiving data.
In the present embodiment, the metadata version comparison device 100 includes that at least one can be with software or firmware
Form is stored in the memory 11 or is solidificated in the software function module in the operating system for calculating equipment 10.It is described
Processor 12 can be used for executing the executable module that the memory 11 stores, such as the metadata version compares device 100
Included software function module and computer program etc..The calculating equipment 10 can compare device by the metadata version
100 realization computing resources consume metadata version comparison process low and that comparison is high-efficient, avoid the fortune to other applications
Row impacts.
It is understood that block diagram shown in FIG. 1 is only a kind of structure composition schematic diagram for calculating equipment 10, the calculating
Equipment 10 may also include than shown in Fig. 1 more perhaps less component or with the configuration different from shown in Fig. 1.In Fig. 1
Shown in each component can using hardware, software, or its combination realize.
It referring to figure 2., is one of the flow diagram of metadata version control methods provided by the embodiments of the present application.At this
Apply in embodiment, the metadata version control methods is applied to above-mentioned calculating equipment 10, below to metadata shown in Fig. 2
The detailed process and step of version control methods are described in detail.
Step S210 obtains metadata version comparison instruction, and parses to version comparison instruction, obtains first
Metadata version and the respective version number of the second metadata version.
In the present embodiment, data, which administer administrative staff, to compare demand according to version, assign and are somebody's turn to do to equipment 10 is calculated
Version compares the corresponding metadata version comparison instruction of demand, so that the calculating equipment 10 carries out corresponding metadata version comparison
Process.After the calculating equipment 10 receives the metadata version comparison instruction, instruction will be compared to the version and counted
According to parsing, version number and the second metadata version corresponding to the first metadata version that the version comparison instruction includes are obtained
Version number corresponding to this.Wherein, first metadata version and second metadata version are to participate in metadata
Two metadata versions in version comparison process.
Step S220 is searched according to first metadata version and the respective version number of the second metadata version
Two corresponding metadata feature set of version number.
In the present embodiment, the corresponding metadata feature of multiple metadata versions is stored in the calculating equipment 10
Set, the calculating equipment 10 is using first metadata version and the respective version number of the second metadata version as rope
Draw, two corresponding metadata feature set of version number are found out from all metadata feature set of storage.
Wherein, the metadata feature set includes every metadata in the collection of metadata of corresponding version number identity, number
According to state and data time stamp.
Step S230 is extracted from the two metadata feature set found according to the identity of every metadata
The corresponding state group of each metadata and timestamp group.
In the present embodiment, the corresponding state group of every metadata includes the metadata in described two metadata feature collection
Corresponding data mode in conjunction, the corresponding timestamp group of every metadata include that the metadata is special in described two metadata
Corresponding data time stamp in collection conjunction.Wherein, the identity according to every metadata is from two found
The corresponding state group of every metadata and timestamp group are extracted in metadata feature set, comprising:
In the two metadata feature set found, this yuan is extracted according to the identity of every metadata respectively
Metadata feature of the data in corresponding metadata feature set, wherein the metadata feature includes the identity of corresponding metadata
Mark, data mode and data time stamp；
Identical two metadata features of identity are subjected to data preparation, obtain metadata corresponding with identity
State group and timestamp group at described two metadata feature set.
Step S240, according to two data time stamps of each metadata in correspondent time group, by each metadata
Two data modes in corresponding states group compare, and identify each metadata in the first metadata according to comparing result
Changing condition between version and the second metadata version.
In the present embodiment, when to obtain every metadata corresponding with the first metadata version and for the calculating equipment 10
When the state group and timestamp group of binary data version match, the calculating equipment 10 is according to every metadata in correspondent time
Two data time stamps in group compare two data modes of the same metadata in corresponding states group, with root
Variation of this metadata between first metadata version and second metadata version is identified according to comparing result
Situation obtains changing condition of each metadata between first metadata version and second metadata version, from
And realize that computing resource consumes metadata version comparison process low and that comparison is high-efficient, avoids the operation to other applications
It impacts.
Optionally, in the present embodiment, it is described according to comparing result identify each metadata the first metadata version with
The step of changing condition between second metadata version, comprising:
For every metadata, if comparing result be the metadata with the relatively small data in described two data time stamps
The corresponding data mode of timestamp is newly-increased state or deletes state, and the metadata in described two data time stamps
The corresponding data mode of larger data timestamp is modification state, then determines the metadata in first metadata version and institute
It states and is modified between the second metadata version；
If comparing result be the metadata with the number corresponding compared with small data timestamp in described two data time stamps
One of newly-increased state, modification state and deletion state according to state, and the metadata with described two data time stamps
In the corresponding data mode of larger data timestamp be deletion state, then determine the metadata in first metadata version
It is deleted between second metadata version；
If comparing result be the metadata with the number corresponding compared with small data timestamp in described two data time stamps
According to state be deletion state or modification state, and the metadata with the larger data timestamp in described two data time stamps
Corresponding data mode is newly-increased state, then determines the metadata in first metadata version and the second metadata version
It is increased newly between this.
Optionally, in the present embodiment, it is described according to comparing result identify each metadata the first metadata version with
The step of changing condition between second metadata version, further includes:
If comparing result is identical for two data modes of the metadata in corresponding states group, and is not deletion shape
State then determines that the metadata remains unchanged between first metadata version and second metadata version.
Referring to figure 3., be metadata version control methods provided by the embodiments of the present application flow diagram two.At this
Apply in embodiment, the metadata version control methods can also include step S250.
Step S250, when identify every metadata first metadata version and second metadata version it
Between changing condition after, by each metadata and the data in first metadata version and second metadata version
The corresponding data content for being incremented storage of the biggish metadata version of timestamp is shown.
In the present embodiment, when calculating equipment 10 obtains needing every metadata of version comparison in first metadata
After changing condition between version and second metadata version, it is described calculate equipment 10 can by each metadata with it is described
The biggish metadata version of data time stamp in first metadata version and second metadata version is corresponding to be incremented
The data content of storage is shown, in order to which data administer the variation that administrative staff are directly observed specific content metadata
Situation.
Referring to figure 4., be metadata version control methods provided by the embodiments of the present application flow diagram three.At this
Apply in embodiment, the metadata version control methods further includes step S260, step S270 and step S280.
Step S260, when needing to store the collection of metadata currently got, according to current meta data set
In each metadata data mode in the metadata feature set recorded recently of data content and each metadata, determine
Data mode of each metadata at current meta data set out.
In the present embodiment, the equipment 10 that calculates is getting member corresponding to the metadata version that currently needs to store
When data acquisition system, the calculating equipment 10 is by according to the data content of every metadata in current meta data set, and its most
Data mode in the metadata feature set of the metadata version closely recorded determines every first number in current meta data set
According to data mode.
Optionally, the data content and each metadata according to each metadata in current meta data set is nearest
Data mode in the metadata feature set of record determines data mode of each metadata at current meta data set
The step of, comprising:
For every metadata in current meta data set, if the metadata is in the metadata feature set recorded recently
Data mode be newly-increased state, modification one of state and deletion state, and the metadata is in current meta data set
Data content be sky, then determine data mode of the metadata at current meta data set for deletion state；
If data mode of the metadata in the metadata feature set recorded recently is deletion state, and the metadata
Data content in current meta data set is not sky, then determines data mode of the metadata at current meta data set
To increase state newly；
If data mode of the metadata in the metadata feature set recorded recently is newly-increased state or modifies state,
And data content of the metadata in current meta data set is not sky, then by the metadata in current meta data set
The data content of data content and the metadata in collection of metadata corresponding with the metadata feature set recorded recently into
Row comparison；
When comparing result is that data content is identical, data mode of the metadata at current meta data set is determined,
It is identical as data mode of the metadata in the metadata feature set recorded recently；
When comparing result is data content difference, determine that data mode of the metadata at current meta data set is
Modification state.
Wherein, the data mode when certain metadata in the metadata feature set recorded recently is newly-increased state or repairs
Change state, and when data content of the metadata in current meta data set is not sky, the calculating equipment 10 was by should
Metadata data content corresponding to the metadata feature set recorded recently, with its data in current meta data set
Content compares, to determine data mode of the metadata at current meta data set by comparing result.If this yuan
The corresponding data content comparing result of data is that data content is identical, then determines number of the metadata at current meta data set
It is identical as data mode of the metadata in the metadata feature set recorded recently according to state；If the metadata is corresponding
Data content comparing result is that data content is different, then determines that data mode of the metadata at current meta data set is to repair
Change state.
Step S270, will be in the data of corresponding metadata according to the data mode of each metadata in current meta data set
Hold and carries out increment storage.
In the present embodiment, calculating equipment 10 data mode of certain metadata in current meta data set is new
When increasing state, the calculating equipment 10 can directly be stored the current data content of the metadata；The calculating equipment 10
When the data mode of certain metadata is deletion state in current meta data set, the calculating equipment 10 can be directly by this yuan
The current data content of data saves as sky；The data shape for calculating certain metadata in current meta data set of equipment 10
When state is modification state, the equipment 10 that calculates is by the data content by the metadata in current meta data set, with it
Data content in the collection of metadata of recent release compares, and carries out increment for specific data content difference and deposit
Storage.
Step S280 generates version number corresponding with current meta data set, according to the version number of generation and currently
The corresponding data mode of each metadata, identity and data time stamp, generate and record corresponding member in collection of metadata
Data characteristics set.
In the present embodiment, the calculating equipment 10 is generating corresponding metadata feature collection for current meta data set
When conjunction, which can generate version number corresponding with current meta data set, and according to each in current meta data set
Identity, data mode and the data time stamp of metadata, generation includes the right with current version number of every metadata
The metadata feature set of identity, data mode and the data time stamp answered.
It referring to figure 5., is one of the block diagram of metadata version comparison device 100 provided by the embodiments of the present application.
In the embodiment of the present application, the metadata version comparison device 100 is looked into including comparison command analysis module 110, characteristic set
Look for module 120, contrast characteristic's extraction module 130 and Characteristic Contrast identification module 140.
The comparison command analysis module 110 refers to for obtaining metadata version comparison instruction, and to version comparison
Order is parsed, and the first metadata version and the respective version number of the second metadata version are obtained.
In the present embodiment, the comparison command analysis module 110 can execute the step S210 in Fig. 2, specifically hold
Row process can refer to above to the detailed description of step S210.
The characteristic set searching module 120, for according to first metadata version and the second metadata version
This respective version number, searches two corresponding metadata feature set of version number.
In the present embodiment, the metadata feature set includes collection of metadata of the every metadata in corresponding version number
In identity, data mode and data time stamp.The characteristic set searching module 120 can execute the step in Fig. 2
S220, specific implementation procedure can refer to above to the detailed description of step S220.
Contrast characteristic's extraction module 130, for according to the identity of every metadata from two members found
The corresponding state group of each metadata and timestamp group are extracted in data characteristics set.
In the present embodiment, the corresponding state group of every metadata includes the metadata in described two metadata feature collection
Corresponding data mode in conjunction, the corresponding timestamp group of every metadata include that the metadata is special in described two metadata
Corresponding data time stamp in collection conjunction.Contrast characteristic's extraction module 130 can execute the step S230 in Fig. 2,
Specific implementation procedure can refer to above to the detailed description of step S230.
The Characteristic Contrast identification module 140, for two data according to each metadata in correspondent time group
Timestamp compares two data modes of each metadata in corresponding states group, and is identified respectively according to comparing result
Changing condition of the metadata between the first metadata version and the second metadata version.
In the present embodiment, the Characteristic Contrast identification module 140 can execute the step S240 in Fig. 2, specifically hold
Row process can refer to above to the detailed description of step S240.
Fig. 6 is please referred to, is the two of the block diagram of metadata version comparison device 100 provided by the embodiments of the present application.
In the embodiment of the present application, the metadata version comparison device 100 further includes data content display module 150.
The data content display module 150, for when identify every metadata first metadata version with
After changing condition between second metadata version, by each article of metadata and first metadata version and described
The corresponding data content for being incremented storage of the biggish metadata version of data time stamp in binary data version is shown.
In the present embodiment, the data content display module 150 can execute the step S250 in Fig. 3, specifically hold
Row process can refer to above to the detailed description of step S250.
Fig. 7 is please referred to, is the three of the block diagram of metadata version comparison device 100 provided by the embodiments of the present application.
In the embodiment of the present application, the metadata version comparison device 100 can also include data mode determining module 160, increment
Storage regulation module 170 and characteristic set generation module 180.
The data mode determining module 160, for when need the collection of metadata currently got is stored when,
According to the data content of each metadata in current meta data set and each metadata in the metadata feature collection recorded recently
Data mode in conjunction determines data mode of each metadata at current meta data set.
In the present embodiment, the data mode determining module 160 can execute the step S260 in Fig. 4, specifically hold
Row process can refer to above to the detailed description of step S260.
The increment storage regulation module 170, for the data mode according to each metadata in current meta data set
The data content of corresponding metadata is subjected to increment storage.
In the present embodiment, the increment storage regulation module 170 can execute the step S270 in Fig. 4, specifically hold
Row process can refer to above to the detailed description of step S270.
The characteristic set generation module 180, for generating version number corresponding with current meta data set, according to generation
The version number and current meta data set in the corresponding data mode of each metadata, identity and data time stamp,
It generates and records corresponding metadata feature set.
In the present embodiment, the characteristic set generation module 180 can execute the step S280 in Fig. 4, specifically hold
Row process can refer to above to the detailed description of step S280.
In conclusion in metadata version control methods provided by the present application and device, the application is by receiving
Metadata version comparison instruction parsed, obtain the first metadata version and the respective version number of the second metadata version,
The corresponding metadata feature set of Liang Ge version number is then searched, and extracts every metadata in two metadata features
Corresponding state group and timestamp group in set, finally two data time according to each metadata in correspondent time group
Stamp, two data modes of each metadata in corresponding states group is compared, to identify each item according to comparing result
Changing condition of the metadata between first metadata version and second metadata version, to realize computing resource
Metadata version comparison process low and that comparison is high-efficient is consumed, avoids impacting the operation of other applications.
The above, the only various embodiments of the application, but the protection scope of the application is not limited thereto, it is any
Those familiar with the art within the technical scope of the present application, it is made readily occur in modification variation or
Equivalent replacement should all cover within the scope of protection of this application.
Claims (10)
1. a kind of metadata version control methods, which is characterized in that the described method includes:
Obtain metadata version comparison instruction, and to the version comparison instruction parse, obtain the first metadata version and
The respective version number of second metadata version；
According to first metadata version and the respective version number of the second metadata version, two version numbers are searched
Corresponding metadata feature set, wherein the metadata feature set includes member of the every metadata in corresponding version number
Identity, data mode and data time stamp in data acquisition system；
Each metadata pair is extracted from the two metadata feature set found according to the identity of every metadata
The state group and timestamp group answered, wherein the state group includes that corresponding metadata is each in described two metadata feature set
Self-corresponding data mode, the timestamp group include that corresponding metadata respectively corresponds in described two metadata feature set
Data time stamp；
According to two data time stamps of each metadata in correspondent time group, by each metadata in corresponding states group
Two data modes compare, and according to comparing result identify each metadata first metadata version with it is described
Changing condition between second metadata version.
2. the method according to claim 1, wherein the identity according to every metadata is from finding
Two metadata feature set in extract the corresponding state group of every metadata and timestamp group, comprising:
In the two metadata feature set found, the metadata is extracted according to the identity of every metadata respectively
Metadata feature in corresponding metadata feature set, wherein the metadata feature includes the identity mark of corresponding metadata
Knowledge, data mode and data time stamp；
Identical two metadata features of identity are subjected to data preparation, obtain metadata corresponding with identity in institute
State the state group and timestamp group at two metadata feature set.
3. the method according to claim 1, wherein the data mode include newly-increased state, delete state and
Modification state, it is described to identify each metadata in first metadata version and the second metadata version according to comparing result
Changing condition between this, comprising:
For every metadata, if comparing result be the metadata with the relatively small data time in described two data time stamps
Stabbing corresponding data mode is newly-increased state or deletes state, and the metadata with it is larger in described two data time stamps
The corresponding data mode of data time stamp is modification state, then determines the metadata in first metadata version and described the
It is modified between binary data version；
If comparing result is the data shape corresponding compared with small data timestamp in described two data time stamps of the metadata
State is one of newly-increased state, modification state and deletion state, and the metadata in described two data time stamps
The corresponding data mode of larger data timestamp is deletion state, then determines the metadata in first metadata version and institute
It states and is deleted between the second metadata version；
If comparing result is the data shape corresponding compared with small data timestamp in described two data time stamps of the metadata
State is deletion state or modification state, and the metadata is corresponding with the larger data timestamp in described two data time stamps
Data mode be newly-increased state, then determine the metadata first metadata version and second metadata version it
Between increased newly.
4. according to the method described in claim 3, it is characterized in that, described identify each metadata described according to comparing result
Changing condition between first metadata version and second metadata version, further includes:
If comparing result is identical for two data modes of the metadata in corresponding states group, and is not deletion state, then
Determine that the metadata remains unchanged between first metadata version and second metadata version.
5. the method according to claim 1, wherein the method also includes:
When identifying changing condition of the every metadata between first metadata version and second metadata version
Afterwards, by the biggish with the data time stamp in first metadata version and second metadata version of each metadata
The corresponding data content for being incremented storage of metadata version is shown.
6. method described in any one of -5 according to claim 1, which is characterized in that the method also includes:
When needing to store the collection of metadata currently got, according to each metadata in current meta data set
The data mode of data content and each metadata in the metadata feature set recorded recently determines that each metadata exists
Data mode at current meta data set；
The data content of corresponding metadata increment is carried out according to the data mode of each metadata in current meta data set to deposit
Storage；
Version number corresponding with current meta data set is generated, according to each in the version number of generation and current meta data set
The corresponding data mode of metadata, identity and data time stamp, generate and record corresponding metadata feature set.
7. according to the method described in claim 6, it is characterized in that, described according to each metadata in current meta data set
The data mode of data content and each metadata in the metadata feature set recorded recently determines that each metadata exists
Data mode at current meta data set, comprising:
For every metadata in current meta data set, if number of the metadata in the metadata feature set recorded recently
It is newly-increased state according to state, modifies one of state and deletion state, and number of the metadata in current meta data set
It is sky according to content, then determines data mode of the metadata at current meta data set for deletion state；
If data mode of the metadata in the metadata feature set recorded recently is deletion state, and the metadata is being worked as
Data content in preceding collection of metadata is not sky, then determines that data mode of the metadata at current meta data set is new
Increasing state；
If data mode of the metadata in the metadata feature set recorded recently is newly-increased state or modification state, and is somebody's turn to do
Data content of the metadata in current meta data set is not sky, then the data by the metadata in current meta data set
The data content of content and the metadata in collection of metadata corresponding with the metadata feature set recorded recently carries out pair
Than；
When comparing result is that data content is identical, data mode of the metadata at current meta data set is determined, with this
Data mode of the metadata in the metadata feature set recorded recently is identical；
When comparing result is data content difference, determine data mode of the metadata at current meta data set for modification
State.
8. a kind of metadata version compares device, which is characterized in that described device includes:
Command analysis module is compared, is parsed for obtaining metadata version comparison instruction, and to version comparison instruction,
Obtain the first metadata version and the respective version number of the second metadata version；
Characteristic set searching module, for according to first metadata version and the respective version of the second metadata version
Number, two corresponding metadata feature set of version number are searched, wherein the metadata feature set includes every
Identity, data mode and data time stamp of the metadata in the collection of metadata of corresponding version number；
Contrast characteristic's extraction module, for according to the identity of every metadata from the two metadata feature set found
In extract the corresponding state group of each metadata and timestamp group, wherein the state group includes corresponding metadata described two
Corresponding data mode in a metadata feature set, the timestamp group include corresponding metadata in described two first numbers
According to data time stamp corresponding in characteristic set；
Characteristic Contrast identification module will be each for two data time stamps according to each metadata in correspondent time group
Two data modes of the metadata in corresponding states group compare, and identify each metadata in institute according to comparing result
State the changing condition between the first metadata version and second metadata version.
9. device according to claim 8, which is characterized in that described device further include:
Data content display module identifies every metadata in first metadata version and the binary number for working as
After the changing condition between version, by each metadata and first metadata version and second metadata version
In the corresponding data content for being incremented storage of the biggish metadata version of data time stamp shown.
10. device according to claim 8 or claim 9, which is characterized in that described device further include:
Data mode determining module, for when need the collection of metadata currently got is stored when, according to current member
Data of the data content and each metadata of each metadata in the metadata feature set recorded recently in data acquisition system
State determines data mode of each metadata at current meta data set；
Increment storage regulation module, for metadata will to be corresponded to according to the data mode of each metadata in current meta data set
Data content carry out increment storage；
Characteristic set generation module, for generating version number corresponding with current meta data set, according to the version of generation
Number and current meta data set in the corresponding data mode of each metadata, identity and data time stamp, generate and record
Corresponding metadata feature set.
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