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jvx:firstapp_step-by-step [2018/01/30 08:16] admin |
jvx:firstapp_step-by-step [2018/01/30 10:24] admin |
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| * Client | * Client | ||
| * Server | * Server | ||
| - | * [[#workscreen|Creation of a work screen]] | + | * [[#create_a_work_screen|Creation of a work screen]] |
| - | * [[#hypersql|Use of a HyperSQL database]] | + | * [[#create_database|Use of a HyperSQL database]] |
| == Folder structure == | == Folder structure == | ||
| Line 39: | Line 39: | ||
| |apps|Contains all available applications. Only one application is contained in this concrete example.| | |apps|Contains all available applications. Only one application is contained in this concrete example.| | ||
| |firstapp|Contains the application with project configuration, sources, libraries.| | |firstapp|Contains the application with project configuration, sources, libraries.| | ||
| - | |help|Contains the client (GWT) for the online help and help pages.| | + | |help|Contains the client for the online help and help pages.| |
| |libs|Contains all libraries which are necessary both on the client and the server.| | |libs|Contains all libraries which are necessary both on the client and the server.| | ||
| |libs/client|Contains all libraries which are only necessary for the client.| | |libs/client|Contains all libraries which are only necessary for the client.| | ||
| Line 47: | Line 47: | ||
| |test|Contains unit tests for the client and server or the libraries.| | |test|Contains unit tests for the client and server or the libraries.| | ||
| - | Once the folder structure has been created, copy the library jvxclient.jar to the folder libs/client and the library jvx.jar to the folder libs/server. Both libraries are contained in the JVx binary package. | + | Once the folder structure has been created, copy the library ''jvxclient.jar'' to the folder ''libs/client'' and the library ''jvx.jar'' to the folder ''libs/server''. Both libraries are contained in the JVx binary package. |
| == Project configuration == | == Project configuration == | ||
| Line 54: | Line 54: | ||
| * **File / New / Java Project** | * **File / New / Java Project** | ||
| - | * Note that the project has to be set up in the application folder firstapp \\ {{:jvx:newproject.png?nolink|}} | + | * Note that the project has to be set up in the application folder ''firstapp'' \\ {{:jvx:newproject.png?nolink|}} |
| - | * **Remove** the src folder from the **Source Folders** \\ **Set** the folders ''src.client'', ''src.server'' and ''test'' as **Source Folder** \\ {{:jvx:newproject_folders.png?nolink|}} | + | * **Remove** the ''src'' folder from the **Source Folders** \\ **Set** the folders ''src.client'', ''src.server'' and ''test'' as **Source Folder** \\ {{:jvx:newproject_folders.png?nolink|}} |
| * **Add** the ''jvx.jar'' library, from the project directory ''JVxFirstApp/libs/server'' \\ {{:jvx:newproject_libs.png?nolink|}} | * **Add** the ''jvx.jar'' library, from the project directory ''JVxFirstApp/libs/server'' \\ {{:jvx:newproject_libs.png?nolink|}} | ||
| * The project can now be created | * The project can now be created | ||
| Line 62: | Line 62: | ||
| {{:jvx:project_eclipse.png?nolink|}} | {{:jvx:project_eclipse.png?nolink|}} | ||
| + | |||
| + | The ''src'' folder can be deleted for consistency, as it is not needed in our application. | ||
| == Application development == | == Application development == | ||
| Line 331: | Line 333: | ||
| We now create the client class for our work screen: | We now create the client class for our work screen: | ||
| - | * **File** / **New** / **Class** \\ {{:jvx:dbedit_new.png?nolink|}} | + | * **File** / **New** / **Class** \\ ''src.client'', ''apps.firstapp.frames.DBEditFrame''\\ {{:jvx:dbedit_new.png?nolink|}} |
| and use the following Source Code: | and use the following Source Code: | ||
| Line 509: | Line 511: | ||
| The client implementation is now finished. Before we can use the application, we must create the missing server classes. We create the following classes: | The client implementation is now finished. Before we can use the application, we must create the missing server classes. We create the following classes: | ||
| - | * {{:jvx:lco_application.png?nolink|}} | + | * **File** / **New** / **Class** \\ ''src.server'', ''apps.firstapp.Application''\\ {{:jvx:lco_application.png?nolink|}} |
| <file java Application.java> | <file java Application.java> | ||
| Line 530: | Line 532: | ||
| |The class represents the lifecycle object for an application. There is exactly one instance of this class for each application, thereby enabling the use of session-wide objects.| | |The class represents the lifecycle object for an application. There is exactly one instance of this class for each application, thereby enabling the use of session-wide objects.| | ||
| - | * {{:jvx:lco_session.png?nolink|}} | + | * **File** / **New** / **Class** \\ ''src.server'', ''apps.firstapp.Session'' \\ {{:jvx:lco_session.png?nolink|}} |
| <file java Session.java> | <file java Session.java> | ||
| Line 583: | Line 585: | ||
| |getDBAccess|Opens a new connection to a HyperSQL database, if this has not already happened. \\ \\ The Exception Handling is taken over by the server.| | |getDBAccess|Opens a new connection to a HyperSQL database, if this has not already happened. \\ \\ The Exception Handling is taken over by the server.| | ||
| - | * {{:jvx:lco_dbedit.png?nolink|}} | + | * **File** / **New** / **Class** \\ ''src.server'', ''apps.firstapp.frames.DBEdit'' \\ {{:jvx:lco_dbedit.png?nolink|}} |
| <file java DBEdit.java> | <file java DBEdit.java> | ||