(1) Editor class
l Provide an editor for log4j.properties
l Since log4j.properties is based on text, you can expand TeXteditor (subclass of EditorPart)
l Create an editor class PropertiesEditor, expand org.eclipse.ui.editors.text.texteditor, frame code under the frame code:
Package org.xqtu.log4j.editor;
Import org.eclipse.ui.editors.text.texteditor;
Public class proffornel eXtends texteditor {
}
l Due to depends on org.eclipse.ui.editors and org.eclipse.ui.Workbench.TextEditor plugins, you need to specify the plugins for these needs:
Ø Open the Plugin.xml list editor
Ø In the Dependencies page, click the Add button to add the above plugin.
(2) Define the editor extension
l Select Extensions page in the Plugin.xml list editor
l Click the Add button, add org.eclipse.ui.editors
l Right click on org.eclipse.ui.editors, New> Editor in the list
l Set the editor properties at the EXTENSION Element Details section on the right:
Ø ID: Specify the editor unique id org.xqtu.log4j.editor.propertiesEditor
Ø name: Specify editor name Log4j Properties Editor
Ø ICON: Select the editor icon (to import the icon file first)
Ø Class: Specify editor class org.xqtu.log4j.editor.propertiesEditor
Ø Default: Set to True, put this editor as the default editor
Ø Filenames: Because the editor only edits Log4j.Properties, set to log4j.properties
l The code corresponding to the Plugin.xml is as follows:
Point = "org.eclipse.ui.editors"> FILENAMES = "log4j.properties" Icon = "icons / file_obj.gif" Class = "org.xqtu.log4j.editor.propertiesEditor" Default = "True" Name = "log4j properties Editor" ID = "org.xqtu.log4j.editor.propertiesEditor" /> (3) Test editor l Run> run l Select Run-Time Workbench in the left list, click the Add button to create a new run configuration l Click the RUN button, start the Workbench window L of the running environment to create a Java project, create a log4j.properties file in the project l Right-click on the log4j.properties file, select Open with, you can see that log4j profrity editor is the default editor. l Select Log4j Properties Editor to open log4j.properties, discovery, and TextEditor are the same, because the TextEditor is extended, so there is a basic function of TextEditor, but there is no feature function, such as syntax color and code assistance
