CN102541544A - Method, device and system for processing tree control - Google Patents
Method, device and system for processing tree control Download PDFInfo
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Abstract
The invention discloses a method, a device and a system for processing a tree control, wherein the method comprises the following steps of: establishing meta-models of one or more nodes in the tree control; and calling corresponding node information from a database according to the meta-models to obtain display information of the tree control. By means of the method, the device and the system disclosed by the invention, the tree control can be automatically established after primary coding; and, the tree control is automatically updated when requirements are changed, therefore, the processing procedure of the tree control has high efficiency and low cost and is difficult to go wrong.
Description
Technical field
The present invention relates to computer realm, in particular to a kind of disposal route, Apparatus and system of Tree control.
Background technology
Tree control is one of the most frequently used UI control, and it can show the mode of system data with the logical level relation well.
Fig. 1 is the constructive process process flow diagram according to the Tree control of related art.As shown in Figure 1, generally, create a detailed Tree control and mainly comprise following three steps: obtain the required root node data of tree control; According to the relation between root node and its child node, create out the one-level child node of root node; Mode recurrence according to second step is created all grandson's nodes.
When carrying out above three steps, also need go out display Name and Status icons of tree node or the like according to the corresponding information creating of tree node.This is a quite complicated job in the process of program development.Therefore consider whether can provide the technology of a kind of UI layer and data Layer automatic interaction, thereby realize the automatic displaying of Tree control.
Concrete; In the process of an above-mentioned Tree control of establishment as shown in Figure 1; At first need obtain the establishment inlet that the root node data just can find whole tree; After having created the tree root node, need create out the one-level child node according to the relation between root node and its child node, recurrence is accomplished up to the establishment of final tree control successively then.Because the relation of each father node and child node all is not quite similar in the tree, so the establishment in each step all need be write a large amount of codes.
At present all need write a large amount of codes to each step in the process of the establishment Tree control of correlation technique, and when change takes place demand, the efficient of renewal Tree control is low, cost is high and the problem that is prone to make mistakes, does not propose effective solution at present as yet.
Summary of the invention
All need write a large amount of codes to each step in the process of the establishment Tree control of correlation technique; And when change takes place in demand; The problem that the efficient of upgrading Tree control is low, cost is high and be prone to make mistakes does not propose effective problem as yet at present and proposes the present invention, for this reason; Fundamental purpose of the present invention is to provide a kind of disposal route, Apparatus and system of Tree control, to address the above problem.
To achieve these goals, according to an aspect of the present invention, a kind of disposal route of Tree control is provided, this method comprises: the meta-model of creating the one or more nodes in the Tree control; From database, call corresponding nodes information according to meta-model, to obtain the display message of Tree control.
Further; Meta-model comprises UI meta-model and data meta-model; Wherein, the meta-model of creating the one or more nodes in the Tree control comprises: the UI meta-model of the one or more nodes in UI layer establishment Tree control, to obtain the node relationships between each node self and the node; The data meta-model of the one or more nodes in data Layer establishment Tree control, and the corresponding data meta-model of each UI meta-model; According to class function that defines in the data meta-model and relation function, obtain Tree control with data association.
Further; From database, call corresponding nodes information according to meta-model, comprise with the display message of obtaining Tree control: the class function of data meta-model is identified at Word message and/or the icon information that obtains in the database and show each node in the Tree control through first; The relation function of data meta-model is identified at through second and obtains in the database and show the incidence relation between each node self in the Tree control and the node.
Further; In the UI meta-model, create the behavior of node and propagate sign; Wherein, after the meta-model of the one or more nodes in creating Tree control, method also comprises: after the data meta-model of creating any node; The state of sign is propagated in the behavior of reading this node, and propagates the Word message and/or the icon information of the status modifier node of sign according to behavior.
Further; Meta-model calls the data in the database through Object Persistent Layer; Wherein, from database, call corresponding nodes information, after the display message of obtaining Tree control according to meta-model; Method also comprises: after upgrading, adding the field of meta-model, the field data of upgrading is saved to database.
To achieve these goals, according to a further aspect in the invention, a kind of treating apparatus of Tree control is provided, this device comprises: create module, be used for creating the meta-model of one or more nodes of Tree control; Calling module is used for calling corresponding nodes information according to meta-model from database, to obtain the display message of Tree control.
Further; Meta-model comprises UI meta-model and data meta-model, wherein, creates module and comprises: first acquisition module; Be used for creating the UI meta-model of one or more nodes of Tree control, to obtain the node relationships between each node self and the node at the UI layer; Second acquisition module; Be used for creating the data meta-model of one or more nodes of Tree control, and, obtain Tree control with data association according to class function that defines in the data meta-model and relation function at data Layer; Wherein, corresponding data meta-model of each UI meta-model.
Further, calling module comprises: first calling module, and the class function that is used for data meta-model is identified at Word message and/or the icon information that database obtained and showed each node in the Tree control through first; Second calling module, the relation function that is used for data meta-model is identified at database through second and obtains and show the incidence relation between each node self in the Tree control and the node.
Further, device also comprises: processing module, be used for after the data meta-model of creating any node, and the state of sign is propagated in the behavior of reading this node, and propagates the Word message and/or the icon information of the status modifier node of sign according to behavior.
To achieve these goals, according to a further aspect in the invention, a kind of disposal system of Tree control is provided; This system comprises: client; Be used for creating the meta-model of one or more nodes of Tree control, and from database, call corresponding nodes information, to obtain the display message of Tree control according to meta-model; Wherein, meta-model comprises UI meta-model and data meta-model; Server is used to preserve database.
Through the present invention, adopt the meta-model of creating the one or more nodes in the Tree control; From database, call corresponding nodes information according to meta-model; To obtain the display message of Tree control; Having solved in the process of establishment Tree control of related art each step all need write a large amount of codes, and when change takes place demand, and the efficient of upgrading Tree control is low, cost is high and the problem that is prone to make mistakes; And then being created in once of realization Tree control can be created after the coding automatically; When change takes place demand, upgrade Tree control automatically, thereby make the processing procedure efficient of Tree control high, cost is low and the effect that is difficult for makeing mistakes.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is the constructive process process flow diagram according to the Tree control of related art;
Fig. 2 is the structural representation according to the disposal system of the Tree control of the embodiment of the invention;
Fig. 3 is the structural representation according to the treating apparatus of the Tree control of the embodiment of the invention;
Fig. 4 is the process flow diagram according to the disposal route of the Tree control of the embodiment of the invention; And
Fig. 5 is the visioning procedure synoptic diagram according to the Tree control of embodiment shown in Figure 4.
Embodiment
Need to prove that under the situation of not conflicting, embodiment and the characteristic among the embodiment among the application can make up each other.Below with reference to accompanying drawing and combine embodiment to specify the present invention.
Fig. 2 is the structural representation according to the disposal system of the Tree control of the embodiment of the invention.
As shown in Figure 2; The disposal system of this Tree control can comprise: client 1; Be used for creating the meta-model of one or more nodes of Tree control, and from database, call corresponding nodes information, to obtain the display message of Tree control according to meta-model; Wherein, meta-model comprises UI meta-model and data meta-model; Server 2 is used to preserve database.
The application's the foregoing description has been realized having realized the automatic establishment of Tree control through introducing data meta-model and UI meta-model in client 1; After the meta-model of Tree control is created completion or is upgraded; Obtain corresponding nodes information in the database in server 2; And nodal information returned to client 1, make Tree control on the client 1 show the data of each nodal information and node relationships.Said system realized Tree control be created in once coding after can create automatically, when change takes place demand, upgrade Tree control automatically, thereby make the processing procedure efficient of Tree control high, cost is low and be difficult for makeing mistakes.
In addition, system can make through the behavior propagation can satisfy self-defined demand when creating automatically, but has improved the dirigibility and intervention of automatic establishment.
Fig. 3 is the structural representation according to the treating apparatus of the Tree control of the embodiment of the invention.
As shown in Figure 3, the database of the application's Tree control also can directly be kept at client.Concrete, as shown in Figure 3, this device can comprise: create module 10, be used for creating the meta-model of one or more nodes of Tree control; Calling module 30 is used for calling corresponding nodes information according to meta-model from database, to obtain the display message of Tree control.
The application realizes having realized the automatic establishment of Tree control through introducing data meta-model and UI meta-model that through creating module 10 this constructive process has been introduced a kind of auto-mechanism, makes being created in once of Tree control can create automatically after the coding.And when different scenes and user's word definition demand, can call appropriate nodes information, secondary control constructive process outside realizing creating automatically according to meta-model.
In the application's the foregoing description; Meta-model comprises UI meta-model and data meta-model; Wherein, Creating module 10 can comprise: first acquisition module 101 is used for the UI meta-model at one or more nodes of UI layer establishment Tree control, to obtain the node relationships between each node self and the node; Second acquisition module 102; Be used for creating the data meta-model of one or more nodes of Tree control at data Layer; And according to class function that defines in the data meta-model and relation function; Obtain Tree control with data association, wherein, the corresponding data meta-model of each UI meta-model.
Calling module 30 in the application's the foregoing description can comprise: first calling module 301, and the class function that is used for data meta-model is identified at Word message and/or the icon information that database obtained and showed each node in the Tree control through first; Second calling module 302, the relation function that is used for data meta-model is identified at database through second and obtains and show the incidence relation between each node self in the Tree control and the node.
The device of the application's the foregoing description can also comprise: processing module 50; Be used for after the data meta-model of creating any node; The state of sign is propagated in the behavior of reading this node, and propagates Word message and/or the icon information that identification-state is revised node according to behavior.This module makes through the behavior propagation can satisfy self-defined demand when creating automatically, but has improved the dirigibility and intervention of automatic establishment.
Fig. 4 is the process flow diagram according to the disposal route of the Tree control of the embodiment of the invention; Fig. 5 is the visioning procedure synoptic diagram according to the Tree control of embodiment shown in Figure 4.
This method as shown in Figure 4 comprises the steps:
Step S102 creates the meta-model of the one or more nodes in the Tree control through establishment module 10 shown in Figure 3.
Step S104 realizes from database, calling corresponding nodes information according to meta-model through the calling module 30 that Fig. 3 was, to obtain the display message of Tree control.
The application realizes having realized the automatic establishment of Tree control through introducing data meta-model and UI meta-model that through creating module 10 this constructive process has been introduced a kind of auto-mechanism, makes being created in once of Tree control can create automatically after the coding.And when different scenes and user's word definition demand, can call appropriate nodes information, secondary control constructive process outside realizing creating automatically according to meta-model.
Concrete, as shown in Figure 5, said method can be combined closely data Layer and UI layer after the notion of having introduced data meta-model and UI meta-model, thereby has realized the automatic establishment of Tree control.
In the application's the foregoing description; Meta-model comprises UI meta-model and data meta-model; Wherein, The step of creating the meta-model of the one or more nodes in the Tree control can comprise: the UI meta-model of the one or more nodes in UI layer establishment Tree control, to obtain the node relationships between each node self and the node; The data meta-model of the one or more nodes in data Layer establishment Tree control, and the corresponding data meta-model of each UI meta-model; According to class function that defines in the data meta-model and relation function, obtain Tree control with data association.
Concrete, the foregoing description at first defines the UI meta-model of Tree control, for example; Shown in the cloud form figure among Fig. 5, be product category at the root node of UI layer Tree control, it has sub-product then; Product has from body product and sub-parts (general assembly) thereof, and parts have self relation of inclusion again.
Then, as shown in Figure 5, the UI meta-model that has defined, for example product category, product and parts and the relation that produces between them can both correspond to the data meta-model of data Layer.The Tree control that obtains showing according to the class function of data meta-model definition and relation function then, i.e. the Word message of the required displaying of tree node and icon information can follow one or more fields of meta-model class and relation to associate.Word message such as product category and product may be defined as [title], and the Word message of parts may be defined as [title-code name].
Preferably; In the application's the foregoing description; From database, call corresponding nodes information according to meta-model, can comprise with the step of the display message of obtaining Tree control: the class function of data meta-model is identified at Word message and/or the icon information that obtains in the database and show each node in the Tree control through first; The relation function of data meta-model is identified at through second and obtains in the database and show the incidence relation between each node self in the Tree control and the node.
At last, as shown in Figure 5, according to before the data association that defines of step, Tree control can obtain root node information and recurrence automatically and create tree root and descendants thereof from data source (like database).Data source can save as source file file with the XML form and call.
In the application's the foregoing description; In the UI meta-model, create the behavior of node and propagate sign; Wherein, after the meta-model of the one or more nodes in creating Tree control, method can also comprise: after the data meta-model of creating any node; The state of sign is propagated in the behavior of reading this node, and propagates Word message and/or the icon information that identification-state is revised node according to behavior.
Preferably; Meta-model calls the data in the database through Object Persistent Layer; Wherein, from database, call corresponding nodes information, after the display message of obtaining Tree control according to meta-model; Method also comprises: after upgrading, adding the field of meta-model, the field data of upgrading is saved to database.The foregoing description can be implemented in and defines a behavior propagation of creating behavior in the UI meta-model, thereby when tree node is created, it is accurately controlled.For example define the behavior that parts create and propagate, when the parts node is created, can intercept and capture the behavior propagation this moment, judge the residing state of these parts (design, issue, file, whether use etc.), thereby revise the icon that this parts node is showed.
Need to prove; Can in computer system, carry out in the step shown in the process flow diagram of accompanying drawing such as a set of computer-executable instructions; And; Though logical order has been shown in process flow diagram, in some cases, can have carried out step shown or that describe with the order that is different from here.
Through the operation of real system, Tree control can obtain and show all data under the meta-model definition fully automatically from database, in secondary development, can carry out accurately control to constructive process again simultaneously.Reached re-set target.
From above description, can find out that the present invention has realized following technique effect: realized the automatic establishment of Tree control, greatly reduced repeated encoding; Can create Tree control fully automatically, again can secondary intervention in constructive process, dirigibility is very high.
Obviously, it is apparent to those skilled in the art that above-mentioned each module of the present invention or each step can realize with the general calculation device; They can concentrate on the single calculation element; Perhaps be distributed on the network that a plurality of calculation element forms, alternatively, they can be realized with the executable program code of calculation element; Thereby; Can they be stored in the memory storage and carry out, perhaps they are made into each integrated circuit modules respectively, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize by calculation element.Like this, the present invention is not restricted to any specific hardware and software combination.
The above is merely the preferred embodiments of the present invention, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. the disposal route of a Tree control is characterized in that, comprising:
Create the meta-model of the one or more nodes in the Tree control;
From database, call corresponding nodes information according to said meta-model, to obtain the display message of said Tree control.
2. method according to claim 1 is characterized in that said meta-model comprises UI meta-model and data meta-model, and wherein, the meta-model of creating the one or more nodes in the Tree control comprises:
Create the UI meta-model of the one or more nodes in the said Tree control at the UI layer, to obtain the node relationships between each node self and the node;
Create the data meta-model of the one or more nodes in the said Tree control at data Layer, and the corresponding data meta-model of each UI meta-model;
According to class function that defines in the said data meta-model and relation function, obtain Tree control with data association.
3. method according to claim 2 is characterized in that, from database, calls corresponding nodes information according to said meta-model, comprises with the display message of obtaining said Tree control:
The class function of said data meta-model is identified at Word message and/or the icon information that obtains in the said database and show each node in the said Tree control through first;
The relation function of said data meta-model is identified at through second and obtains in the said database and show the incidence relation between each node self in the said Tree control and the node.
4. according to any described method among the claim 1-3, it is characterized in that in said UI meta-model, create the behavior of node and propagate sign, wherein, after the meta-model of the one or more nodes in creating Tree control, said method also comprises:
After the data meta-model of creating any node, the state of sign is propagated in the behavior of reading this node, and propagates the Word message and/or the icon information of the said node of status modifier of sign according to said behavior.
5. method according to claim 4; It is characterized in that said meta-model calls the data in the database through Object Persistent Layer, wherein; From database, call corresponding nodes information according to said meta-model; After the display message of obtaining said Tree control, said method also comprises: after upgrading, adding the field of said meta-model, the field data of upgrading is saved to said database.
6. the treating apparatus of a Tree control is characterized in that, comprising:
Create module, be used for creating the meta-model of one or more nodes of Tree control;
Calling module is used for calling corresponding nodes information according to said meta-model from database, to obtain the display message of said Tree control.
7. device according to claim 6 is characterized in that said meta-model comprises UI meta-model and data meta-model, and wherein, said establishment module comprises:
First acquisition module is used for creating at the UI layer UI meta-model of one or more nodes of said Tree control, to obtain the node relationships between each node self and the node;
Second acquisition module; Be used for creating the data meta-model of one or more nodes of said Tree control at data Layer; And according to class function that defines in the said data meta-model and relation function; Obtain Tree control with data association, wherein, the corresponding data meta-model of each UI meta-model.
8. device according to claim 7 is characterized in that, said calling module comprises:
First calling module, the class function that is used for said data meta-model is identified at Word message and/or the icon information that said database obtained and showed each node in the said Tree control through first;
Second calling module, the relation function that is used for said data meta-model is identified at said database through second and obtains and show the incidence relation between each node self in the said Tree control and the node.
9. according to any described device among the claim 6-8, it is characterized in that said device also comprises:
Processing module is used for after the data meta-model of creating any node, and the state of sign is propagated in the behavior of reading this node, and propagates the Word message and/or the icon information of the said node of status modifier of sign according to said behavior.
10. the disposal system of a Tree control is characterized in that, comprising:
Client; Be used for creating the meta-model of one or more nodes of Tree control, and from database, call corresponding nodes information, to obtain the display message of said Tree control according to said meta-model; Wherein, said meta-model comprises UI meta-model and data meta-model;
Server is used to preserve said database.
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