CN104991778A - Filtering method and apparatus based on tree structure - Google Patents

Filtering method and apparatus based on tree structure Download PDF

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Publication number
CN104991778A
CN104991778A CN201510415440.8A CN201510415440A CN104991778A CN 104991778 A CN104991778 A CN 104991778A CN 201510415440 A CN201510415440 A CN 201510415440A CN 104991778 A CN104991778 A CN 104991778A
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China
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data
tree
tree structure
class
raw data
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CN201510415440.8A
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CN104991778B (en
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高嵩
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Beijing Jingdong Century Trading Co Ltd
Beijing Jingdong Shangke Information Technology Co Ltd
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Beijing Jingdong Century Trading Co Ltd
Beijing Jingdong Shangke Information Technology Co Ltd
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Abstract

The present invention discloses a filtering method based on a tree structure, which comprises: according to a page access request, acquiring tree original data; executing an data filtering operation on the tree original data in a manner of defining a plurality of categories to obtain tree data with an extended attribute; and displaying the tree data with the extended attribute into the tree structure by a user page control. The present invention also discloses a filtering apparatus based on the tree structure.

Description

Based on filter method and the device of tree structure
Technical field
The present invention relates to field of computer technology, particularly a kind of filter method based on tree structure and device.
Background technology
In field of computer technology, tree form data structure is structure common in software development, a lot of system has tree menu, drop-down interlock is also had nothing in common with each other for the filter method of tree data, High Availabitity, filtrable tree-like method effectively can improve a software development efficiency, saves cost of development.Under normal circumstances, developer is at exploitation one left side TreeView Menu, such as there are three grades, the first order is first-level class, and the second level is secondary classification, and the third level is reclassify, and need to carry out data filtering according to different rules in the page simultaneously, such as, see according to different rights the node that tree is different, now developer's first considers it is if the method for the multiplexing tree menu of energy can save a large amount of development times.
Prior art is: when a Webpage display TreeView Menu, first obtain raw data, be then assembled into tree structure, do filtration treatment again, be assembled into the data layout of needs again, finally pass to front page layout, front page layout represents TreeView Menu by javascript control.Further, when having multiple page to need to represent different TreeView Menus, often need to develop many cover tree structure methods, corresponding different page development diverse ways, different page invocation diverse ways carries out the structure of showing tree menu, and repeatedly access needs repeatedly calling data source.
There is following shortcoming in prior art: the page shows that tree shaped data all needs to call source data interface at every turn, calls frequency high; Because the page needs the data of showing difference in functionality, need to develop the corresponding different page need of many cover diverse ways, code repeatability is low simultaneously.
Summary of the invention
In view of this, the invention provides a kind of filter method based on tree structure, there is provided common data by ActiveMQ message mechanism, Redis buffering scheme in the mode of interface, realize the effective amount of calling reducing common interface, improve common interface data processing performance; Simultaneously by raw data formatting and carry out data filtering operation, realize the extensibility of data filtering and the terseness of code call.Namely only need develop filtrator and the visitor of corresponding business, programming personnel only need pay close attention to business, reduces the repeated workload of coding, improves development efficiency, and support level is filtered.The invention also discloses a kind of filtration unit based on tree structure.
For achieving the above object, according to an aspect of the present invention, provide a kind of filter method based on tree structure, comprising: according to accession page request, obtain tree-like raw data; By the mode defining multiple class, data filter operation is performed to described tree-like raw data, obtain the tree data with extended attribute; And the described tree data with extended attribute is shown as tree structure by User Page control.
Alternatively, describedly perform data filter operation specifically comprise by defining the mode of multiple class: classification ID, specific name; Define multiple object method, definition Accessor Classes and definition data filtering class; Instantiation data filters class and instantiation Accessor Classes; The traversal method calling described instantiation Accessor Classes travels through whole tree, is wherein carrying out in ergodic process to whole tree, calls described instantiation data and filters the method for cutting out decision node of class the need of cutting.
Alternatively, according to accession page request, while obtaining tree-like raw data, described tree-like raw data is synchronized to Redis caching server.
Alternatively, if carry out alter operation to described tree-like raw data, then source data application server sends MQ message to ActiveMQ message server, and by the data syn-chronization of change in described Redis caching server.
For achieving the above object, according to another aspect of the present invention, provide a kind of filtration unit based on tree structure, comprising: tree-like raw data acquisition module, for according to accession page request, obtain tree-like raw data; Data filtering module, performs data filter operation for the mode by the multiple class of definition to described tree-like raw data, obtains the tree data with extended attribute; And tree structure display module, for the described tree data with extended attribute is shown as tree structure by User Page control.
Alternatively, described data filtering module comprises: taxon, definition unit, instantiating unit and Traversal Unit; Wherein said taxon, for the ID that classifies, specific name; Described definition unit, for defining multiple object method, definition Accessor Classes and definition data filtering class; Described instantiating unit, filters class and instantiation Accessor Classes for instantiation data; Described Traversal Unit, traversal method for calling described instantiation Accessor Classes travels through whole tree structure, wherein carrying out in ergodic process to whole tree structure, calling described instantiation data and filter the method for cutting out decision node of class the need of cutting.
Alternatively, also comprise: cache module, for according to accession page request, while obtaining tree-like raw data, described tree-like raw data is synchronized to Redis caching server.
Alternatively, comprise further: MQ message transmission module, if for carrying out alter operation to described tree-like raw data, then source data application server sends MQ message to ActiveMQ message server, and by the data syn-chronization of change in described Redis caching server.
According to technical scheme of the present invention, the present invention proposes a kind of filter method based on tree structure, there is provided common data by ActiveMQ message mechanism, Redis buffering scheme in the mode of interface, realize the effective amount of calling reducing common interface, improve common interface data processing performance; Simultaneously by raw data formatting and carry out data filtering operation, realize the filterability of data filtering and the terseness of code call.Namely only need develop filtrator and the visitor of corresponding business, programming personnel only need pay close attention to business, reduces the repeated workload of coding, improves development efficiency, and support level is filtered.The invention also discloses a kind of filtration unit based on tree structure.
Accompanying drawing explanation
Accompanying drawing is used for understanding the present invention better, does not form inappropriate limitation of the present invention.Wherein:
Fig. 1 is the flow chart of steps of a kind of filter method based on tree structure according to the embodiment of the present invention;
Fig. 2 is the page menus exemplary plot according to a kind of filter method based on tree structure of the present invention; And
Fig. 3 is the structural representation of a kind of filtration unit based on tree structure according to the embodiment of the present invention.
Embodiment
Below in conjunction with accompanying drawing, exemplary embodiment of the present invention is explained, comprising the various details of embodiment of the present invention to help understanding, they should be thought it is only exemplary.Therefore, those of ordinary skill in the art will be appreciated that, can make various change and amendment, and can not deviate from scope and spirit of the present invention to embodiment described herein.Equally, for clarity and conciseness, the description to known function and structure is eliminated in following description.
As shown in Figure 1, the flow chart of steps of a kind of filter method based on tree structure of the embodiment of the present invention.Concrete steps are as follows:
Step S 1: according to accession page request, obtains tree-like raw data.
Particularly, according to accession page request, obtaining tree-like raw data is: source data interface obtains tree-like raw data by source data application server from database server.Shown in the following form of data structure:
/**
* first-level class ID
*/
Private int categoryNo1;
/**
* first-level class title
*/
Private int categoryName1;
/**
* secondary classification ID
*/
Private int categoryNo2;
/**
* secondary classification title
*/
Private int categoryName2;
/**
* reclassify ID
*/
Private int categoryNo3;
/**
* reclassify title
*/
Private int categoryName3;
Step S2: by the mode defining multiple class, data filter operation is performed to tree-like raw data, obtain the tree data with extended attribute.Wherein, need to define multiple class according to service needed and scene, such as, multiple Accessor Classes and multiple data filtering class can be defined, namely by the mode of the multiple Accessor Classes of definition and multiple data filtering class, data filter operation is performed to tree-like raw data, obtain the tree data with extended attribute, namely realize the extensibility of data.
Particularly, the mode by defining multiple class performs data filter operation to tree-like raw data and specifically comprises: classification ID, specific name; Define multiple object method, definition Accessor Classes and definition data filtering class, wherein, multiple object method comprises: father node method is set, obtains father node method, add child nodes to this node under method, a child nodes method of deleting under this node, obtain all child nodes methods, obtain this node object method and accept traversal method.Thus, improve the diversity of object method and follow-up usability.
Further, instantiation data filters class and instantiation Accessor Classes; The traversal method calling instantiation Accessor Classes travels through whole tree, is wherein carrying out in ergodic process to whole tree, calls instantiation data and filters the method for cutting out decision node of class the need of cutting.Wherein, it is write different data filtering rules according to different business that instantiation data filters class, filter in class to provide at instantiation data and judge that a certain node is the need of the method for cutting out carrying out trimming operation, and perform cutting, it should be noted that, filtering in the process of class at instantiation data is do not carry out trimming operation, and instantiation Accessor Classes passes to instantiation Accessor Classes for above-mentioned instantiation data is filtered class; The traversal method calling instantiation Accessor Classes travels through whole tree, and that namely calls tree-like object accepts traversal method, instantiation Accessor Classes is transmitted; Carry out in ergodic process to whole tree, the method for cutting out calling instantiation data filtration class judges that a certain node is the need of cutting.Final if desired cutting, then perform cutting.
Further, the data of traversal method to different stage of writing Multi-instance Accessor Classes travel through; And the method for cutting out writing Multi-instance data filtering class carries out cutting to the data of Different Logic.Thus, by definition and the multiple Accessor Classes of instantiation and multiple data filtering class, applicability and the extendability of data filtering is realized.
Step S3: the tree data with extended attribute is shown as tree structure by User Page control.
In order to the mode better understood by defining multiple class performs data filter operation, obtaining this step of tree data with extended attribute, providing following example, as shown in Figure 2.
Shown in the tree-like raw data of the every bar form as published in the present invention in source database, comprise reclassify, i.e. reclassify ID and reclassify title, by tree-like raw data being stored in tree structure to traversal of tree, filter operation can be carried out according to business to tree-like raw data in traversal of tree process, obtain the tree data with extended attribute, obtain different authorities eventually through cutting.Particularly, the user of different role can see different region menus.Such as, need based on different service needed, scene, by the mode defining multiple class, data filter operation is performed to tree-like raw data, obtain the tree data with extended attribute, namely in practice, Shanghai company management person is achieved only with subdivisions all under seeing Shanghai branch office eventually through cutting; The keeper of Nanjing department is then only with subdivisions all under seeing Nanjing branch office.Namely the mode by defining multiple class performs data filter operation, achieves the extensibility of data, is achieved the control of authority simultaneously by cutting.
Further, in order to better realize the filter method based on tree structure, disclose while source data interface obtains tree-like raw data by source data application server from database server in the present invention, tree-like raw data is synchronized to Redis caching server; When again calling tree-like raw data, first reading the data in Redis caching server, checking in Redis caching server the tree-like raw data whether having buffer memory; If there is the tree-like raw data of buffer memory, then from Redis caching server, carry out the reading of tree-like raw data; If there is not the tree-like raw data of buffer memory, then call source data interface and obtain tree-like raw data by source data application server from database server.Thus, source data interface accessing frequency is effectively reduced.
Further, if the tree-like raw data in source data application server carries out alter operation, then source data application server sends MQ (MessageQuery to ActiveMQ message server, message queue), and by the data syn-chronization of change in Redis caching server, wherein, alter operation comprises: editor, interpolation and deletion.And MQ message is a kind of communication means of application program application programs.Application program communicates into the data-message for application program of lining up with retrieving by writing, and links them without the need to special connection.Particularly, Message refers between program and communicates by sending data in the message, instead of communicates each other by directly calling, and direct transfers to pass to connect and calls normally for the technology of such as remote procedure call; Query is referred to application program and is communicated by queue.The use of queue eliminates the requirement receiving and send application program and perform simultaneously.
The invention provides a kind of filter method based on tree structure, provide common data by ActiveMQ message mechanism, Redis buffering scheme in the mode of interface, realize the effective amount of calling reducing common interface, improve common interface data processing performance; Simultaneously by raw data formatting and carry out data filtering operation, realize the filterability of data filtering and the terseness of code call.Namely only need develop filtrator and the visitor of corresponding business, programming personnel only need pay close attention to business, reduces the repeated workload of coding, improves development efficiency, and support level is filtered.
As shown in Figure 3, the structural representation of a kind of filtration unit based on tree structure of the embodiment of the present invention.A kind of filtration unit 10 based on tree structure, comprising: tree-like raw data acquisition module 101, data filtering module 102 and tree structure display module 103.
Particularly, tree-like raw data acquisition module 101, for according to accession page request, obtains tree-like raw data.
Data filtering module 102, for performing data filter operation by the mode of the multiple class of definition to tree-like raw data, obtains the tree data with extended attribute.
Particularly, data filtering module 102 comprises: taxon 1021, definition unit 1022, instantiating unit 1023 and Traversal Unit 1024.Taxon 1021 is for the ID that classifies, specific name; Definition unit 1022 is for defining multiple object method, definition Accessor Classes and definition data filtering class, wherein, multiple object method comprises: father node method is set, obtains father node method, add child nodes to this node under method, a child nodes method of deleting under this node, obtain all child nodes methods, obtain this node object method and accept traversal method; Instantiating unit 1023 filters class and instantiation Accessor Classes for instantiation data; Traversal Unit 1024 travels through whole tree for the traversal method calling instantiation Accessor Classes, is wherein carrying out in ergodic process to whole tree, calls instantiation data and filters the method for cutting out decision node of class the need of cutting.
Tree structure display module 103 is for being shown as tree structure by the tree data with extended attribute by User Page control.
Further, a kind of filtration unit based on tree structure disclosed by the invention, also comprises: tree-like raw data, for according to accession page request, while obtaining tree-like raw data, is synchronized to Redis caching server by cache module 104.
Further, a kind of filtration unit based on tree structure disclosed by the invention, also comprise: if MQ message transmission module 105 is for carrying out alter operation to tree-like raw data, then source data application server sends MQ message to ActiveMQ message server, and by the data syn-chronization of change in Redis caching server.
The invention provides a kind of filtration unit based on tree structure, provide common data by ActiveMQ message mechanism, Redis buffering scheme in the mode of interface, realize the effective amount of calling reducing common interface, improve common interface data processing performance; Simultaneously by performing data filter operation to the tree-like raw data formatting and mode of carrying out by defining multiple class, realize the filterability of data filtering and the terseness of code call.Namely only need develop filtrator and the visitor of corresponding business, programming personnel only need pay close attention to business, reduces the repeated workload of coding, improves development efficiency, and support level is filtered.
Describe and can be understood in process flow diagram or in this any process otherwise described or method, represent the module, fragment or the part that comprise the code of the executable instruction of one or more step for realizing specific logical function or process, and the scope of the preferred embodiment of the present invention comprises other realization, wherein can not according to order that is shown or that discuss, comprise according to involved function by the mode while of basic or by contrary order, carry out n-back test, this should understand by embodiments of the invention person of ordinary skill in the field.
In flow charts represent or in this logic otherwise described and/or step, such as, the sequencing list of the executable instruction for realizing logic function can be considered to, may be embodied in any computer-readable medium, for instruction execution system, device or equipment (as based on computer system, comprise the system of processor or other can from instruction execution system, device or equipment instruction fetch and perform the system of instruction) use, or to use in conjunction with these instruction execution systems, device or equipment.With regard to this instructions, " computer-readable medium " can be anyly can to comprise, store, communicate, propagate or transmission procedure for instruction execution system, device or equipment or the device that uses in conjunction with these instruction execution systems, device or equipment.The example more specifically (non-exhaustive list) of computer-readable medium comprises following: the electrical connection section (electronic installation) with one or more wiring, portable computer diskette box (magnetic device), random access memory (RAM), ROM (read-only memory) (POM), erasablely edit ROM (read-only memory) (EPROM or flash memory), fiber device, and portable optic disk ROM (read-only memory) (CDROM).In addition, computer-readable medium can be even paper or other suitable media that can print described program thereon, because can such as by carrying out optical scanning to paper or other media, then carry out editing, decipher or carry out process with other suitable methods if desired and electronically obtain described program, be then stored in computer memory.
Should be appreciated that each several part of the present invention can realize with hardware, software, firmware or their combination.In the above-described embodiment, multiple step or method can with to store in memory and the software performed by suitable instruction execution system or firmware realize.Such as, if realized with hardware, with the same in another embodiment, can realize by any one in following technology well known in the art or their combination; There is the discrete logic of the logic gates for realizing logic function to data-signal, there is the special IC of suitable combinational logic gate circuit, programmable gate array (PGA), field programmable gate array (FPGA) etc.
Those skilled in the art are appreciated that realizing all or part of step that above-described embodiment method carries is that the hardware that can carry out instruction relevant by program completes, described program can be stored in a kind of computer-readable recording medium, this program perform time, step comprising embodiment of the method one or a combination set of.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing module, also can be that the independent physics of unit exists, also can be integrated in a module by two or more unit.Above-mentioned integrated module both can adopt the form of hardware to realize, and the form of software function module also can be adopted to realize.If described integrated module using the form of software function module realize and as independently production marketing or use time, also can be stored in a computer read/write memory medium.
The above-mentioned storage medium mentioned can be ROM (read-only memory), disk or CD etc.
In the description of this instructions, specific features, structure, material or feature that the description of reference term " embodiment " " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, identical embodiment or example are not necessarily referred to the schematic bidding documents of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
Although illustrate and describe embodiments of the invention above, be understandable that, above-described embodiment is exemplary, can not understand limitation of the present invention, those of ordinary skill in the art can change above-described embodiment within the scope of the invention when not departing from principle of the present invention and aim, revising, replacing and modification.Scope of the present invention is by claims extremely equivalency.
Above-mentioned embodiment, does not form limiting the scope of the invention.It is to be understood that depend on designing requirement and other factors, various amendment, combination, sub-portfolio can be there is and substitute in those skilled in the art.Any amendment done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within scope.

Claims (8)

1. based on a filter method for tree structure, it is characterized in that, comprise step:
According to accession page request, obtain tree-like raw data;
By the mode defining multiple class, data filter operation is performed to described tree-like raw data, obtain the tree data with extended attribute; And
The described tree data with extended attribute is shown as tree structure by User Page control.
2. the filter method based on tree structure according to claim 1, is characterized in that, the described mode by defining multiple class performs data filter operation and specifically comprises:
Classification ID, specific name;
Define multiple object method, definition Accessor Classes and definition data filtering class;
Instantiation data filters class and instantiation Accessor Classes;
The traversal method calling described instantiation Accessor Classes travels through whole tree structure, is wherein carrying out in ergodic process to whole tree structure, calls described instantiation data and filters the method for cutting out decision node of class the need of cutting.
3. the filter method based on tree structure according to claim 1, is characterized in that, according to accession page request, while obtaining tree-like raw data, described tree-like raw data is synchronized to Redis caching server.
4. the filter method based on tree structure according to claim 1, it is characterized in that, if carry out alter operation to described tree-like raw data, then source data application server sends MQ message to ActiveMQ message server, and by the data syn-chronization of change in described Redis caching server.
5. based on a filtration unit for tree structure, it is characterized in that, comprising:
Tree-like raw data acquisition module, for according to accession page request, obtains tree-like raw data;
Data filtering module, performs data filter operation for the mode by the multiple class of definition to described tree-like raw data, obtains the tree data with extended attribute; And
Tree structure display module, for being shown as tree structure by the described tree data with extended attribute by User Page control.
6. the filtration unit based on tree structure according to claim 5, is characterized in that, described data filtering module comprises: taxon, definition unit, instantiating unit and Traversal Unit, wherein
Described taxon, for the ID that classifies, specific name;
Described definition unit, for defining multiple object method, definition Accessor Classes and definition data filtering class;
Described instantiating unit, filters class and instantiation Accessor Classes for instantiation data;
Described Traversal Unit, traversal method for calling described instantiation Accessor Classes travels through whole tree structure, wherein carrying out in ergodic process to whole tree structure, calling described instantiation data and filter the method for cutting out decision node of class the need of cutting.
7. the filtration unit based on tree structure according to claim 5, is characterized in that, also comprise: cache module, for according to accession page request, while obtaining tree-like raw data, described tree-like raw data is synchronized to Redis caching server.
8. the filtration unit based on tree structure according to claim 5, it is characterized in that, comprise further: MQ message transmission module, if for carrying out alter operation to described tree-like raw data, then source data application server sends MQ message to ActiveMQ message server, and by the data syn-chronization of change in described Redis caching server.
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