CN104573086A - Database access component and generating method thereof - Google Patents
Database access component and generating method thereof Download PDFInfo
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- CN104573086A CN104573086A CN201510044896.8A CN201510044896A CN104573086A CN 104573086 A CN104573086 A CN 104573086A CN 201510044896 A CN201510044896 A CN 201510044896A CN 104573086 A CN104573086 A CN 104573086A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/25—Integrating or interfacing systems involving database management systems
Abstract
The invention provides a database access component and a generation method thereof. The database access component comprises an integrally packaged add, delete, correct and search operation interfaces of multiple databases, a batch task operation interface and a big character field search and insert interface. The database access component is packaged in the DB Tool type. In this way, database access complexity is decreased.
Description
Technical field
The present invention relates to field of computer technology, particularly a kind of a kind of generation method of database access component and database access component.
Background technology
In the applied business needing database access, database access service realizes each business module and the mutual necessary technology of database data.Current conventional database has ORACLE, DB2, MySql, SQL Server, Sybase etc., generally, the interface name that each database provides, using method are all not identical, and also there is some difference usually for the same database interface title under different operating system, code speech.
Current each database access service is all generally encapsulate separately a certain class database used, due to the difference of type of database, operating system environment, development language etc., database access interface varies, unified database access service cannot be provided for user, when user needs usage data storehouse, need to carry out different configurations for different databases, when database changed by needs, need again to rewrite configuration for new database, complicated operation.
Summary of the invention
In view of this, the invention provides a kind of a kind of generation method of database access component and database access component, the complexity of accessing database can be reduced.
On the one hand, the invention provides a kind of database access component, comprising:
The increasing of the multitype database of overall package, delete, change, look into operation-interface, batch tasks operation-interface, big field inquiry and insert interface;
Described database access Component encapsulating is DBTool class.
Further, also comprise:
Time parameter arranges module, for determining the tie-time attribute-bit parameter in the DBTool constructed fuction of described DBTool class according to external command, when the described tie-time, attribute-bit parameter was set to short connection, notify short link block, when described tie-time attribute-bit parameter is set to long connection, notify long link block, wherein, the long tie-time attribute in connection data storehouse of connection of described tie-time attribute-bit Parametric Representation, the tie-time attribute in the connection data storehouse of short connection;
Described short link block, for when receiving described time parameter and arranging the notice that module sends, opens the connection with database when object instance calling interface method, close the connection with database when object instance calling interface method returns;
Described long link block, for when receiving described time parameter and arranging the notice that module sends, open the connection with database when object instance interface method first time performs, disconnect the connection with database when the object instance that described object instance interface method is corresponding is destroyed.
Further, also comprise:
Environmental parameter arranges module, owing to determining the JA(junction ambient) attribute-bit parameter in the DBTool constructed fuction of described DBTool class according to external command, when described JA(junction ambient) attribute-bit parameter is set to multithreading, notice multithreading module, when described JA(junction ambient) attribute-bit parameter is set to single-threaded, advice note threading models, wherein, the execution environment attribute of database manipulation, the execution environment attribute of single-threaded database manipulation of described JA(junction ambient) attribute-bit Parametric Representation multithreading;
Described single-threaded module, for when receiving described environmental parameter and arranging the notice that module sends, the execution environment of setting data storehouse operation is single-threaded;
Described multithreading module, for when receiving described environmental parameter and arranging the notice that module sends, the execution environment of setting data storehouse operation is multithreading.
Further, also comprise: database access service interface, for calling described increasing, deleting, change, looking into operation-interface, described batch tasks operation-interface, the inquiry of described big field and insert multitype database described in interface accessing.
Further, also comprise:
Security module, for when the execution environment that fulfillment database operates is multithreading, utilizes lock mechanism to realize thread-safe;
And/or memory protect module, realizes the memory protect of DBTool class to the inquiry renewal rewards theory of big field for utilizing internal memory cache region;
And/or batch tasks operational module, realizes batch updating for DBTool class by the batch tasks operation-interface calling described multitype database.
On the other hand, the invention provides a kind of generation method of database access component, comprising:
S1: the increasing of overall package multitype database, delete, change, look into operation-interface, batch tasks operation-interface, big field inquiry and insert interface, generates database access component;
S2: be DBTool class by described database access Component encapsulating.
Further, described S2 comprises:
In the DBTool constructed fuction of described DBTool class, tie-time attribute-bit parameter is set, wherein, the long tie-time attribute in connection data storehouse of connection of described tie-time attribute-bit Parametric Representation, the tie-time attribute in the connection data storehouse of short connection;
Arrange when the described tie-time, attribute-bit parameter was set to short connection, open the connection with database when object instance calling interface method, close the connection with database when object instance calling interface method returns;
Arrange when described tie-time attribute-bit parameter is set to long connection, open the connection with database when object instance interface method first time performs, disconnect the connection with database when the object instance that described object instance interface method is corresponding is destroyed.
Further, described S2 comprises:
JA(junction ambient) attribute-bit parameter is set in the DBTool constructed fuction of described DBTool class, wherein, the execution environment attribute of database manipulation, the execution environment attribute of single-threaded database manipulation of described JA(junction ambient) attribute-bit Parametric Representation multithreading;
Arrange when described JA(junction ambient) attribute-bit parameter is set to single-threaded, the execution environment of database manipulation is single-threaded;
Arrange when described JA(junction ambient) attribute-bit parameter is set to multithreading, the execution environment of database manipulation is multithreading.
Further, also comprise: arrange described database access component for calling described increasing, delete, change, look into operation-interface, described batch tasks operation-interface, the inquiry of described big field and the database access service interface inserting multitype database described in interface accessing.
Further, also comprise:
Arrange when the execution environment of fulfillment database operation is multithreading, utilize lock mechanism to realize thread-safe;
And/or, arrange and utilize internal memory cache region to realize the memory protect of DBTool class to the inquiry renewal rewards theory of big field;
And/or, DBTool class is set and realizes batch updating by the batch tasks operation-interface calling described multitype database.
The invention provides a kind of a kind of generation method of database access component and database access component, this database access component comprises the increasing of the multitype database of overall package, delete, change, look into operation-interface, batch tasks operation-interface, big field inquiry and insertion interface, for user provides interface unified, database access service easy to use, user does not need to reconfigure just can by this database access component access multitype database, database access Component encapsulating is DBTool class, due to the class that DBTool class is cross-platform, avoid due to operating system environment, the coding that the difference of development language is brought affects, reduce the complexity of accessing database.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the generation method flow diagram of a kind of database access component that one embodiment of the invention provides.
Embodiment
For making the object of the embodiment of the present invention, technical scheme and advantage clearly; below in conjunction with the accompanying drawing in the embodiment of the present invention; technical scheme in the embodiment of the present invention is clearly and completely described; obviously; described embodiment is the present invention's part embodiment, instead of whole embodiments, based on the embodiment in the present invention; the every other embodiment that those of ordinary skill in the art obtain under the prerequisite not making creative work, all belongs to the scope of protection of the invention.
Embodiments provide a kind of database access component, comprising:
The increasing of the multitype database of overall package, delete, change, look into operation-interface, batch tasks operation-interface, big field inquiry and insert interface;
Described database access Component encapsulating is DBTool class.
Embodiments provide a kind of database access component, this database access component comprises the increasing of the multitype database of overall package, delete, change, look into operation-interface, batch tasks operation-interface, big field inquiry and insertion interface, for user provides interface unified, database access service easy to use, user does not need to reconfigure just can by this database access component access multitype database, database access Component encapsulating is DBTool class, due to the class that DBTool class is cross-platform, avoid due to operating system environment, the coding that the difference of development language is brought affects, reduce the complexity of accessing database.
In a kind of possible implementation, database access component also comprises:
Time parameter arranges module, for determining the tie-time attribute-bit parameter in the DBTool constructed fuction of described DBTool class according to external command, when the described tie-time, attribute-bit parameter was set to short connection, notify short link block, when described tie-time attribute-bit parameter is set to long connection, notify long link block, wherein, the long tie-time attribute in connection data storehouse of connection of described tie-time attribute-bit Parametric Representation, the tie-time attribute in the connection data storehouse of short connection.In this implementation, user can arrange module by time parameter as requested, arranges the tie-time attribute in connection data storehouse.
Described short link block, for when receiving described time parameter and arranging the notice that module sends, opens the connection with database when object instance calling interface method, close the connection with database when object instance calling interface method returns.When the tie-time attribute in connection data storehouse is short connection, in units of an object instance calling interface method, the connection with database is opened when object instance calling interface method, close the connection with database when object instance calling interface method returns, this process is: open and transmit → close the connection with database with the connection → data of database.
Described long link block, for when receiving described time parameter and arranging the notice that module sends, open the connection with database when object instance interface method first time performs, disconnect the connection with database when the object instance that described object instance interface method is corresponding is destroyed.
Wherein, the long time connected slightly is shorter than the life cycle of object instance.When the tie-time attribute in connection data storehouse is for long connection, after structure object instance, open the connection with database when object instance interface method first time performs, disconnect the connection with database when the object instance that described object instance interface method is corresponding is destroyed.This process is: open transmit with the connection → data of database → keep connect → data transmit → keep connect → → disconnect the connection with database.Because object instance has corresponding action scope, when this object instance is outer to its action scope, this object time will auto-destruct.For example, when object instance is local variable, its action scope has been gone out with regard to auto-destruct, when object instance is global variable, then when the program at its place exits, auto-destruct.
In a kind of possible implementation, database access component also comprises:
Environmental parameter arranges module, owing to determining the JA(junction ambient) attribute-bit parameter in the DBTool constructed fuction of described DBTool class according to external command, when described JA(junction ambient) attribute-bit parameter is set to multithreading, notice multithreading module, when described JA(junction ambient) attribute-bit parameter is set to single-threaded, advice note threading models, wherein, the execution environment attribute of database manipulation, the execution environment attribute of single-threaded database manipulation of described JA(junction ambient) attribute-bit Parametric Representation multithreading;
Described single-threaded module, for when receiving described environmental parameter and arranging the notice that module sends, the execution environment of setting data storehouse operation is single-threaded;
Described multithreading module, for when receiving described environmental parameter and arranging the notice that module sends, the execution environment of setting data storehouse operation is multithreading.
In a kind of possible implementation, conveniently user uses this database access component, and this data block access component is provided with unified database access service interface.This database access component, also comprises: database access service interface, for calling described increasing, deleting, change, looking into operation-interface, described batch tasks operation-interface, the inquiry of described big field and insert multitype database described in interface accessing.By this database access service interface, avoid the repeatedly encapsulation of user to access types of databases.
In addition, in a kind of possible implementation, this database access component, also comprises:
Security module, for when the execution environment that fulfillment database operates is multithreading, utilizes lock mechanism to realize thread-safe;
And/or memory protect module, realizes the memory protect of DBTool class to the inquiry renewal rewards theory of big field for utilizing internal memory cache region;
And/or batch tasks operational module, realizes batch updating for DBTool class by the batch tasks operation-interface calling described multitype database.
In the database access component that the present embodiment provides, unified database access service can be provided, realize transparent database access.In the database access component that the present embodiment provides, secondary encapsulation is carried out to raw data base access mode, shield the operation that part is loaded down with trivial details, the operation making user only need needs to carry out is carried out transmitting with the form of sql sentence, and namely user only need pass to interface by needing the sql statement of the operation carried out.
In the database access component that the present embodiment provides, for user provides unified database access service interface, supports multitype database and multiple operating system environment.Encapsulated by global design, can in this database access component all Sybases of overall package, for user provide interface unified, use simple database access service.
As shown in Figure 1, embodiments provide a kind of generation method of database access component, the method can comprise the following steps:
S1: the increasing of overall package multitype database, delete, change, look into operation-interface, batch tasks operation-interface, big field inquiry and insert interface, generates database access component;
S2: be DBTool class by described database access Component encapsulating.
In a kind of possible implementation, described S2 comprises:
In the DBTool constructed fuction of described DBTool class, tie-time attribute-bit parameter is set, wherein, the long tie-time attribute in connection data storehouse of connection of described tie-time attribute-bit Parametric Representation, the tie-time attribute in the connection data storehouse of short connection;
Arrange when the described tie-time, attribute-bit parameter was set to short connection, open the connection with database when object instance calling interface method, close the connection with database when object instance calling interface method returns;
Arrange when described tie-time attribute-bit parameter is set to long connection, open the connection with database when object instance interface method first time performs, disconnect the connection with database when the object instance that described object instance interface method is corresponding is destroyed.
In a kind of possible implementation, described S2 comprises:
JA(junction ambient) attribute-bit parameter is set in the DBTool constructed fuction of described DBTool class, wherein, the execution environment attribute of database manipulation, the execution environment attribute of single-threaded database manipulation of described JA(junction ambient) attribute-bit Parametric Representation multithreading;
Arrange when described JA(junction ambient) attribute-bit parameter is set to single-threaded, the execution environment of database manipulation is single-threaded;
Arrange when described JA(junction ambient) attribute-bit parameter is set to multithreading, the execution environment of database manipulation is multithreading.
In a kind of possible implementation, the method also comprises: arrange described database access component for calling described increasing, delete, change, look into operation-interface, described batch tasks operation-interface, the inquiry of described big field and the database access service interface inserting multitype database described in interface accessing.
In a kind of possible implementation, the method also comprises:
Arrange when the execution environment of fulfillment database operation is multithreading, utilize lock mechanism to realize thread-safe;
And/or, arrange and utilize internal memory cache region to realize the memory protect of DBTool class to the inquiry renewal rewards theory of big field;
And/or, DBTool class is set and realizes batch updating by the batch tasks operation-interface calling described multitype database.
Embodiments provide a kind of a kind of generation method of database access component and database access component, there is following beneficial effect:
1, embodiments provide a kind of a kind of generation method of database access component and database access component, this database access component comprises the increasing of the multitype database of overall package, delete, change, look into operation-interface, batch tasks operation-interface, big field inquiry and insertion interface, for user provides interface unified, database access service easy to use, user does not need to reconfigure just can by this database access component access multitype database, database access Component encapsulating is DBTool class, due to the class that DBTool class is cross-platform, avoid due to operating system environment, the coding that the difference of development language is brought affects, reduce the complexity of accessing database.
2, embodiments provide a kind of a kind of generation method of database access component and database access component, by the increasing of overall package multitype database in database access component, delete, change, look into operation-interface, batch tasks operation-interface, big field inquiry and insertion interface, generate database access component, for user provides unified database access interface, avoid the repeatedly encapsulation of user to access types of databases, by being DBTool class by database access Component encapsulating, shield different operating system, the inconsistent encoding variability impact caused of development language lower interface using method, do not need ADO (ActiveXData Objects, program object), do not need .net framework etc. is installed, improve development efficiency.
3, embodiments provide a kind of a kind of generation method of database access component and database access component, in database access, because database kind is different, operating system environment, the difference of development language etc., database access interface is different, at replacing database, the storehouse access interface that resets Configuration Data is needed during system migration, cause the prolongation of R&D cycle, the increase of project cost, by the database access component in the present embodiment, overall package multitype database, provide unified database access service interface, at replacing database, the storehouse access service interface that resets Configuration Data is not needed during system migration, shorten the R&D cycle, reduce project cost.
It should be noted that, in this article, the relational terms of such as first and second and so on is only used for an entity or operation to separate with another entity or operational zone, and not necessarily requires or imply the relation that there is any this reality between these entities or operation or sequentially.And, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thus make to comprise the process of a series of key element, method, article or equipment and not only comprise those key elements, but also comprise other key elements clearly do not listed, or also comprise by the intrinsic key element of this process, method, article or equipment.When not more restrictions, the key element " being comprised " limited by statement, and be not precluded within process, method, article or the equipment comprising described key element and also there is other same factor.
One of ordinary skill in the art will appreciate that: all or part of step realizing said method embodiment can have been come by the hardware that programmed instruction is relevant, aforesaid program can be stored in the storage medium of embodied on computer readable, this program, when performing, performs the step comprising said method embodiment; And aforesaid storage medium comprises: ROM, RAM, magnetic disc or CD etc. various can be program code stored medium in.
Finally it should be noted that: the foregoing is only preferred embodiment of the present invention, only for illustration of technical scheme of the present invention, be not intended to limit protection scope of the present invention.All any amendments done within the spirit and principles in the present invention, equivalent replacement, improvement etc., be all included in protection scope of the present invention.
Claims (10)
1. a database access component, is characterized in that, comprising:
The increasing of the multitype database of overall package, delete, change, look into operation-interface, batch tasks operation-interface, big field inquiry and insert interface;
Described database access Component encapsulating is DBTool class.
2. database access component according to claim 1, is characterized in that, also comprise:
Time parameter arranges module, for determining the tie-time attribute-bit parameter in the DBTool constructed fuction of described DBTool class according to external command, when the described tie-time, attribute-bit parameter was set to short connection, notify short link block, when described tie-time attribute-bit parameter is set to long connection, notify long link block, wherein, the long tie-time attribute in connection data storehouse of connection of described tie-time attribute-bit Parametric Representation, the tie-time attribute in the connection data storehouse of short connection;
Described short link block, for when receiving described time parameter and arranging the notice that module sends, opens the connection with database when object instance calling interface method, close the connection with database when object instance calling interface method returns;
Described long link block, for when receiving described time parameter and arranging the notice that module sends, open the connection with database when object instance interface method first time performs, disconnect the connection with database when the object instance that described object instance interface method is corresponding is destroyed.
3. database access component according to claim 1, is characterized in that, also comprise:
Environmental parameter arranges module, owing to determining the JA(junction ambient) attribute-bit parameter in the DBTool constructed fuction of described DBTool class according to external command, when described JA(junction ambient) attribute-bit parameter is set to multithreading, notice multithreading module, when described JA(junction ambient) attribute-bit parameter is set to single-threaded, advice note threading models, wherein, the execution environment attribute of database manipulation, the execution environment attribute of single-threaded database manipulation of described JA(junction ambient) attribute-bit Parametric Representation multithreading;
Described single-threaded module, for when receiving described environmental parameter and arranging the notice that module sends, the execution environment of setting data storehouse operation is single-threaded;
Described multithreading module, for when receiving described environmental parameter and arranging the notice that module sends, the execution environment of setting data storehouse operation is multithreading.
4. database access component according to claim 1, it is characterized in that, also comprise: database access service interface, for calling described increasing, deleting, change, looking into operation-interface, described batch tasks operation-interface, the inquiry of described big field and insert multitype database described in interface accessing.
5., according to described database access component arbitrary in claim 1-4, it is characterized in that, also comprise:
Security module, for when the execution environment that fulfillment database operates is multithreading, utilizes lock mechanism to realize thread-safe;
And/or memory protect module, realizes the memory protect of DBTool class to the inquiry renewal rewards theory of big field for utilizing internal memory cache region;
And/or batch tasks operational module, realizes batch updating for DBTool class by the batch tasks operation-interface calling described multitype database.
6. a generation method for database access component, is characterized in that, comprising:
S1: the increasing of overall package multitype database, delete, change, look into operation-interface, batch tasks operation-interface, big field inquiry and insert interface, generates database access component;
S2: be DBTool class by described database access Component encapsulating.
7. method according to claim 6, is characterized in that, described S2 comprises:
In the DBTool constructed fuction of described DBTool class, tie-time attribute-bit parameter is set, wherein, the long tie-time attribute in connection data storehouse of connection of described tie-time attribute-bit Parametric Representation, the tie-time attribute in the connection data storehouse of short connection;
Arrange when the described tie-time, attribute-bit parameter was set to short connection, open the connection with database when object instance calling interface method, close the connection with database when object instance calling interface method returns;
Arrange when described tie-time attribute-bit parameter is set to long connection, open the connection with database when object instance interface method first time performs, disconnect the connection with database when the object instance that described object instance interface method is corresponding is destroyed.
8. method according to claim 6, is characterized in that, described S2 comprises:
JA(junction ambient) attribute-bit parameter is set in the DBTool constructed fuction of described DBTool class, wherein, the execution environment attribute of database manipulation, the execution environment attribute of single-threaded database manipulation of described JA(junction ambient) attribute-bit Parametric Representation multithreading;
Arrange when described JA(junction ambient) attribute-bit parameter is set to single-threaded, the execution environment of database manipulation is single-threaded;
Arrange when described JA(junction ambient) attribute-bit parameter is set to multithreading, the execution environment of database manipulation is multithreading.
9. method according to claim 6, it is characterized in that, also comprise: arrange described database access component for calling described increasing, delete, change, look into operation-interface, described batch tasks operation-interface, the inquiry of described big field and the database access service interface inserting multitype database described in interface accessing.
10., according to described method arbitrary in claim 6-9, it is characterized in that, also comprise:
Arrange when the execution environment of fulfillment database operation is multithreading, utilize lock mechanism to realize thread-safe;
And/or, arrange and utilize internal memory cache region to realize the memory protect of DBTool class to the inquiry renewal rewards theory of big field;
And/or, DBTool class is set and realizes batch updating by the batch tasks operation-interface calling described multitype database.
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Application publication date: 20150429 |