Plug-in metedata tell eclipse runtime kernel how to create a expected object and set its perperties, 

and assign these objects to defined interfce object, make these interface objects 

communicate with each other.

org.eclipse.compare/plugin.xml

 <?xml version="1.0" encoding="UTF-8"?>

 <?eclipse version="3.0"?>

 <plugin>

 <!-- Compare extension point definitions -->

    <extension-point id="streamMergers" name="%streamMergers" schema="schema/streamMergers.exsd"/>

    <extension-point id="structureCreators" name="%structureCreators" schema="schema/structureCreators.exsd"/>

    <extension-point id="structureMergeViewers" name="%structureMergeViewers" schema="schema/structureMergeViewers.exsd"/>

    <extension-point id="contentMergeViewers" name="%contentMergeViewers" schema="schema/contentMergeViewers.exsd"/>

    <extension-point id="contentViewers" name="%contentViewers" schema="schema/contentViewers.exsd"/>

 <!-- Extensions -->

    <extension

          point="org.eclipse.ui.themes">

       <themeElementCategory

             label="%textCompareAppearance.label"

             id="org.eclipse.compare.contentmergeviewer.TextMergeViewer">

       </themeElementCategory>

       <colorDefinition

             label="%compareIncomingColor.label"

             categoryId="org.eclipse.compare.contentmergeviewer.TextMergeViewer"

             value="COLOR_BLUE"

             id="INCOMING_COLOR">

          <description>

             %compareIncomingColor.description

          </description>

       </colorDefinition>

       <colorDefinition

             label="%compareOutgoingColor.label"

             categoryId="org.eclipse.compare.contentmergeviewer.TextMergeViewer"

             value="COLOR_BLACK"

             id="OUTGOING_COLOR">

          <description>

             %compareOutgoingColor.description

          </description>

       </colorDefinition>

       <colorDefinition

             label="%compareConflictColor.label"

             categoryId="org.eclipse.compare.contentmergeviewer.TextMergeViewer"

             value="COLOR_RED"

             id="CONFLICTING_COLOR">

          <description>

             %compareConflictColor.description

          </description>

       </colorDefinition>

       <colorDefinition

             label="%compareResolvedColor.label"

             categoryId="org.eclipse.compare.contentmergeviewer.TextMergeViewer"

             value="COLOR_GREEN"

             id="RESOLVED_COLOR">

          <description>

             %compareResolvedColor.description

          </description>

       </colorDefinition>

       <fontDefinition

             label="%compareFontDefiniton.label"

             defaultsTo="org.eclipse.jface.textfont"

             categoryId="org.eclipse.compare.contentmergeviewer.TextMergeViewer"

             id="org.eclipse.compare.contentmergeviewer.TextMergeViewer">

           <description>

             %compareFontDefiniton.description

          </description>

       </fontDefinition>

    </extension>

    <extension

          id="rejectedPatchMarker"

          name="%rejectedPatchMarker.name"

          point="org.eclipse.core.resources.markers">

       <super

             type="org.eclipse.core.resources.taskmarker">

       </super>

       <persistent

             value="true">

       </persistent>

    </extension>

    <extension

          point="org.eclipse.ui.editors">

       <editor

             name="%defaultCompareEditor.name"

             icon="$nl$/icons/full/eview16/compare_view.gif"

             contributorClass="org.eclipse.compare.internal.CompareEditorContributor"

             class="org.eclipse.compare.internal.CompareEditor"

             id="org.eclipse.compare.CompareEditor">

       </editor>

    </extension>

    <extension

          point="org.eclipse.ui.preferencePages">

       <page

             name="%ComparePreferencePage.name"

             category="org.eclipse.ui.preferencePages.Workbench"

             class="org.eclipse.compare.internal.ComparePreferencePage"

             id="org.eclipse.compare.internal.ComparePreferencePage">

             <keywordReference id="org.eclipse.compare.general"/>

       </page>

    </extension>

     <extension

         point="org.eclipse.ui.keywords">

         <keyword

             label="%preferenceKeywords.general"

             id="org.eclipse.compare.general"/>

     </extension>

 <!-- commands and their bindings -->

    <extension

          point="org.eclipse.ui.contexts">

       <context

             name="%context.name"

             description="%context.description"

             parentId="org.eclipse.ui.contexts.window"

             id="org.eclipse.compare.compareEditorScope">

       </context>

    </extension>

    <extension

          point="org.eclipse.ui.commands">

       <category

             name="%compareCategory.name"

             description="%compareCategory.description"

             id="org.eclipse.compare.ui.category.compare">

       </category>

       <command

             name="%Command.copyRightToLeft.name"

             description="%Command.copyRightToLeft.description"

             categoryId="org.eclipse.compare.ui.category.compare"

             id="org.eclipse.compare.copyRightToLeft">

       </command>

       <command

             name="%Command.copyLeftToRight.name"

             description="%Command.copyLeftToRight.description"

             categoryId="org.eclipse.compare.ui.category.compare"

             id="org.eclipse.compare.copyLeftToRight">

       </command>

       <command

             name="%Command.copyAllRightToLeft.name"

             description="%Command.copyAllRightToLeft.description"

             categoryId="org.eclipse.compare.ui.category.compare"

             id="org.eclipse.compare.copyAllRightToLeft">

       </command>

       <command

             name="%Command.copyAllLeftToRight.name"

             description="%Command.copyAllLeftToRight.description"

             categoryId="org.eclipse.compare.ui.category.compare"

             id="org.eclipse.compare.copyAllLeftToRight">

       </command>

       <command

             name="%Command.selectNextChange.name"

             description="%Command.selectNextChange.description"

             categoryId="org.eclipse.compare.ui.category.compare"

             id="org.eclipse.compare.selectNextChange">

       </command>

       <command

             name="%Command.selectPreviousChange.name"

             description="%Command.selectPreviousChange.description"

             categoryId="org.eclipse.compare.ui.category.compare"

             id="org.eclipse.compare.selectPreviousChange">

       </command>

       <command

             categoryId="org.eclipse.compare.ui.category.compare"

             description="%Command.ignoreWhiteSpace.description"

             id="org.eclipse.compare.ignoreWhiteSpace"

             name="%Command.ignoreWhiteSpace.name">

       </command>

       <command

             categoryId="org.eclipse.compare.ui.category.compare"

             defaultHandler="org.eclipse.compare.internal.CompareWithOtherResourceHandler"

             description="%Command.compareWithOther.description"

             id="org.eclipse.compare.compareWithOther"

             name="%Command.compareWithOther.name">

       </command>

    </extension>

    <extension

          point="org.eclipse.ui.popupMenus">

       <objectContribution

             objectClass="org.eclipse.core.resources.mapping.ResourceMapping"

             adaptable="true"

             id="org.eclipse.compare.MenuGroups">

          <menu

                label="%ReplaceWithMenu.label"

                path="additions"

                id="replaceWithMenu">

             <separator

                   name="replaceWithGroup">

             </separator>

          </menu>

          <menu

                label="%CompareWithMenu.label"

                path="additions"

                id="compareWithMenu">

             <separator

                   name="compareWithGroup">

             </separator>

          </menu>

       </objectContribution>

       <objectContribution

             objectClass="org.eclipse.core.resources.IResource"

             adaptable="true"

             id="org.eclipse.compare.CompareAction">

          <action

                label="%CompareWithEachOtherAction.label"

                tooltip="%CompareWithEachOtherAction.tooltip"

                class="org.eclipse.compare.internal.CompareAction"

                menubarPath="compareWithMenu/compareWithGroup"

                enablesFor="2+"

                id="compareWithEachOther">

          </action>

       </objectContribution>

       <objectContribution

             objectClass="org.eclipse.core.resources.IFile"

             adaptable="true"

             id="org.eclipse.compare.ReplaceWithEditionAction">

          <menu

                label="%ReplaceWithMenu.label"

                path="additions"

                id="replaceWithMenu">

             <separator

                   name="replaceWithGroup">

             </separator>

          </menu>

          <action

                class="org.eclipse.compare.internal.ReplaceWithEditionAction"

                enablesFor="1"

                helpContextId="org.eclipse.compare.replace_with_edition_action_context"

                id="replaceFromHistory"

                label="%ReplaceFromHistoryAction.label"

                menubarPath="replaceWithMenu/replaceWithGroup"

                tooltip="%ReplaceFromHistoryAction.tooltip">

          </action>

          <action

                label="%ReplaceWithPreviousFromHistoryAction.label"

                tooltip="%ReplaceWithPreviousFromHistoryAction.tooltip"

                class="org.eclipse.compare.internal.ReplaceWithPreviousEditionAction"

                menubarPath="replaceWithMenu/replaceWithGroup"

                enablesFor="1"

                id="replaceWithPreviousFromHistory">

          </action>

       </objectContribution>

       <objectContribution

             objectClass="org.eclipse.core.resources.IFile"

             adaptable="true"

             id="org.eclipse.compare.CompareWithEditionAction">

          <menu

                label="%CompareWithMenu.label"

                path="additions"

                id="compareWithMenu">

             <separator

                   name="compareWithGroup">

             </separator>

          </menu>

          <action

                label="%CompareWithHistoryAction.label"

                tooltip="%CompareWithHistoryAction.tooltip"

                class="org.eclipse.compare.internal.CompareWithEditionAction"

                menubarPath="compareWithMenu/compareWithGroup"

                enablesFor="1"

                id="compareWithHistory">

          </action>

       </objectContribution>

       <objectContribution

             objectClass="org.eclipse.core.resources.IContainer"

             adaptable="true"

             id="org.eclipse.compare.AddFromHistoryAction">

          <action

                label="%addFromHistoryAction.label"

                tooltip="%addFromHistoryAction.tooltip"

                class="org.eclipse.compare.internal.AddFromHistoryAction"

                menubarPath="replaceWithMenu"

                enablesFor="1"

                id="addFromHistoryAction">

          </action>

       </objectContribution>

    </extension>

    <extension

          point="org.eclipse.compare.streamMergers">

       <streamMerger

             extensions="txt"

             class="org.eclipse.compare.internal.merge.TextStreamMerger"

             id="org.eclipse.compare.internal.merge.TextStreamMerger">

       </streamMerger>

       <contentTypeBinding

               contentTypeId="org.eclipse.core.runtime.text"

               streamMergerId="org.eclipse.compare.internal.merge.TextStreamMerger">

       </contentTypeBinding>

    </extension>

    <extension

          point="org.eclipse.compare.structureCreators">

       <structureCreator

             extensions="zip"

             class="org.eclipse.compare.ZipFileStructureCreator"

             id="org.eclipse.compare.ZipFileStructureCreator">

       </structureCreator>

    </extension>

    <extension

          point="org.eclipse.compare.contentMergeViewers">

       <viewer

             class="org.eclipse.compare.internal.BinaryCompareViewerCreator"

             extensions="class,exe,dll,binary,zip,jar"

             id="org.eclipse.compare.BinaryCompareViewerCreator"

             label="%BinaryCompare.label">

       </viewer>

       <viewer

             class="org.eclipse.compare.internal.TextMergeViewerCreator"

             extensions="txt"

             id="org.eclipse.compare.TextMergeViewerCreator"

             label="%TextCompare.label">

       </viewer>

       <viewer

             class="org.eclipse.compare.internal.ImageMergeViewerCreator"

             extensions="gif,jpg,jpeg,png,bmp,ico,tif,tiff"

             id="org.eclipse.compare.ImageMergeViewerCreator"

             label="%ImageCompare.label">

       </viewer>

       <contentTypeBinding

             contentTypeId="org.eclipse.core.runtime.text"

             contentMergeViewerId="org.eclipse.compare.TextMergeViewerCreator">

       </contentTypeBinding>

    </extension>

    <extension

          point="org.eclipse.compare.contentViewers">

       <viewer

             extensions="txt"

             class="org.eclipse.compare.internal.TextViewerCreator"

             id="org.eclipse.compare.TextViewerCreator">

       </viewer>

       <contentTypeBinding

             contentTypeId="org.eclipse.core.runtime.text"

             contentViewerId="org.eclipse.compare.TextViewerCreator">

       </contentTypeBinding>

    </extension>

    <extension

          point="org.eclipse.core.runtime.preferences">

       <initializer

             class="org.eclipse.compare.internal.ComparePreferenceInitializer">

       </initializer>

    </extension>

    <extension

          point="org.eclipse.core.runtime.adapters">

       <factory

             adaptableType="org.eclipse.compare.CompareEditorInput"

             class="org.eclipse.compare.internal.AdapterFactory">

          <adapter

                type="org.eclipse.ui.IContributorResourceAdapter">

          </adapter>

       </factory>

    </extension>

 </plugin>
  • The description of extension-point which is contributed to other plug-ins.
  •  <extension-point id="streamMergers" name="%streamMergers" schema="schema/streamMergers.exsd"/>

    <extension-point> define a extension which can be as a extension point for other plug-in. Provide the features for other plug-ins.Now you can find detailed information of the StreamMergers provided by org.eclipse.compare plug-in as follows:

  •  public interface IStreamMerger {
    
     public static final int OK= IStatus.OK;
    
     public static final int CONFLICT= 1;
    
     public static final int INTERNAL_ERROR= 2;
    
     IStatus merge(OutputStream output, String outputEncoding,
    
                   InputStream ancestor, String ancestorEncoding,
    
                   InputStream target, String targetEncoding,
    
                   InputStream other, String otherEncoding,
    
                   IProgressMonitor monitor);
    
 }
  • Stream Merger
    
Identifier: org.eclipse.compare.streamMergers
    
Since: 3.0
    
Description: This extension point allows a plug-in to register a stream merger for specific content types. The stream merger is expected to perform a three-way merge on three input streams and writes the result to an output stream. The extension point must implement the interface org.eclipse.compare.IStreamMerger.
    
Configuration Markup:
    
<!ELEMENT extension (streamMerger* , contentTypeBinding*)>
    
<!ATTLIST extension
    
point CDATA #REQUIRED
    
id    CDATA #IMPLIED
    
name  CDATA #IMPLIED
    
>
    
point - a fully qualified identifier of the target extension point
    
id - an optional identifier of the extension instance
    
name - an optional name of the extension instance 

<!ELEMENT streamMerger EMPTY>
    
<!ATTLIST streamMerger
    
id         CDATA #REQUIRED
    
class      CDATA #REQUIRED
    
extensions CDATA #IMPLIED
    
>
    
id - a unique identifier that can be used to reference the stream merger
    
class - a fully qualified name of a class that implements org.eclipse.compare.IStreamMerger 
    
extensions - a comma separated list of file extensions e.g. "java, properties"
    
<!ELEMENT contentTypeBinding EMPTY>
    
<!ATTLIST contentTypeBinding
    
contentTypeId  IDREF #REQUIRED
    
streamMergerId IDREF #REQUIRED
    
>
    
A contentTypeBinding binds a stream merger to a content type.
    
contentTypeId - The id of a content type defined using the org.eclipse.core.contenttype.contentTypes extension point.
    
streamMergerId - The id of a stream merger defined using the streamMerger element of this extension point (i.e. org.eclipse.compare.streamMergers)

Examples: The following is an example of a stream merger for property files (extension "properties"):
    
<extension point = "org.eclipse.compare.streamMergers">
    
     <streamMerger
    
         id="org.eclipse.compare.internal.merge.TextStreamMerger"
    
         class="org.eclipse.compare.internal.merge.TextStreamMerger"
    
         extensions="properties"
    
    />
    
</extension>
    
API Information: The contributed class must implement org.eclipse.compare.IStreamMerger
    
Supplied Implementation: The Compare UI plugin defines a stream merger for line oriented text files.

  • The definition of <extension point>

  •  <extension  point="org.eclipse.ui.themes">

    <extension point=""> indicates that this plug-in want to extend from that point, add additional features or want that point service for this plug-in.Now we have a look at extenion-point of org.eclipse.ui.themes.

  • Take a look at interface ITheme.when we need a Theme object, elipse kernel can load plug-ins which define all properties of Theme through plug-in.xml of this exclipse plug-in.
  •  package org.eclipse.ui.themes;
    
 import java.util.Set;
    
 import org.eclipse.jface.resource.ColorRegistry;
    
 import org.eclipse.jface.resource.FontRegistry;
    
 import org.eclipse.jface.util.IPropertyChangeListener;
    
 public interface ITheme {
    
     void addPropertyChangeListener(IPropertyChangeListener listener);
    
     void dispose();
    
     boolean getBoolean(String key);
    
     ColorRegistry getColorRegistry();
    
     FontRegistry getFontRegistry();
    
     String getId();
    
     public int getInt(String key);
    
     String getLabel();
    
     String getString(String key);
    
     Set keySet();
    
     void removePropertyChangeListener(IPropertyChangeListener listener);
    
 }

Configuration Markup:

<!ELEMENT extension (theme* , colorDefinition* , fontDefinition* , themeElementCategory* , data* , categoryPresentationBinding*)>

<!ATTLIST extension point CDATA #REQUIRED id CDATA #IMPLIED name CDATA #IMPLIED >

  • point - a fully qualified identifier of the target extension point
  • id - an optional identifier of the extension instance
  • name - an optional name of the extension instance

<!ELEMENT theme (colorOverride* , fontOverride* , description? , data*)>

<!ATTLIST theme id CDATA #REQUIRED name CDATA #IMPLIED >

A collection of font, color and data overrides. Such a collection may be used to alter the appearance of the workbench. Many theme elements may exist with the same id. This allows component authors to contribute to existing themes.

  • id - a unique name that will be used to identify this theme
  • name - a translatable name of the theme to be presented to the user.

At least one theme definition with any given id should contain this attribute.

<!ELEMENT themeElementCategory (description?)>

<!ATTLIST themeElementCategory id CDATA #REQUIRED parentId IDREF #IMPLIED class CDATA #IMPLIED label CDATA #IMPLIED >

A logical grouping of theme element definitions. This category may include colors and fonts.

  • id - the id for this category
  • parentId - the id of the parent category, if any.
  • class - a class that implements org.eclipse.ui.themes.IThemePreview
  • label - a translatable name of the theme element category to be presented to the user

<!ELEMENT colorDefinition (colorFactory? , colorValue* , description?)>

<!ATTLIST colorDefinition id CDATA #REQUIRED label CDATA #REQUIRED defaultsTo CDATA #IMPLIED value CDATA #IMPLIED categoryId IDREF #IMPLIED colorFactory CDATA #IMPLIED isEditable (true | false) >

A symbolic color definition.

  • id - a unique id that can be used to identify this color definition.
  • label - a translatable name of the color to be presented to the user.
  • defaultsTo - the id of another color definition that is the default setting for the receiver. When there is no preference for this color the color registry will have the value of defaultsTo set for it in the registry. Only one of defaultsTo, value or colorFactory may be defined.
  • value - The default value of this color. The value may be specified in the following ways:
    • a String containing comma separated integers in the form red,green,blue
    • a String that maps to an SWT color constant (ie: COLOR_RED).
    • Only one of defaultsTo, value or colorFactory may be defined. If value is specified, additional value definitions may be specified on a per platform/windowing system basis via the colorValue element.
  • categoryId - the optional id of the themeElementCategory this color belongs to.
  • colorFactory - a class that implements org.eclipse.ui.themes.IColorFactory. This may be used instead of value to specify the default value of the color. Please be advised that this should be used with caution - usage of this attribute will cause plugin activation on workbench startup.
  • isEditable - whether the user should be allowed to edit this color in the preference page. If this is false then the contribution is not shown to the user.
  • <!ELEMENT fontDefinition (fontValue* , description?)> <!ATTLIST fontDefinition id CDATA #REQUIRED label CDATA #REQUIRED value CDATA #IMPLIED categoryId IDREF #IMPLIED defaultsTo CDATA #IMPLIED isEditable (true | false) > A symbolic font definition.
  • id - a unique name that can be used to identify this font definition. label - a translatable name of the font to be presented to the user.
  • value - the font value. This is in the form: fontname-style-height where fontname is the name of a font, style is a font style (one of "regular", "bold", "italic", or "bold italic") and height is an integer representing the font height.

Eclipse org.eclipse.compare plug-in的更多相关文章

  1. Eclipse及Eclipse为基础的App报错“Failed to create the Java Virtual Machine”的解决办法

    由于OracleJDK马上就要收费了,公司要求更换OpenJDK,结果安装后Eclipse及Eclipse为基础的App启动报错:“Failed to create the Java Virtual ...

  2. 【eclipse】Eclipse安装插件支持jQ…

    [eclipse]Eclipse安装插件支持jQuery智能提示 最近工作中用到jQuery插件,需要安装eclipse插件才能支持jQuery智能提示,在网上搜索了一下,常用的有三个插件支持jQue ...

  3. eclipse 去掉Eclipse打开后定期弹出Usage Data Upload对话框

    Eclipse 的 UDC 老定期蹦出来说要上传使用数据到 eclipse 官网服务器去除方法: 1.删除 eclipse/plugins 目录下以 org.eclipse.epp.usagedata ...

  4. Scala Eclipse org.eclipse.e4.workbench异常奔溃修复

     Scala Eclipse org.eclipse.e4.workbench异常奔溃修复: 找到<workspace>/.metadata/.plugins/org.eclipse.e4 ...

  5. 【玩转Eclipse】——eclipse实现代码块折叠-类似于VS中的#region……#endregion

    [玩转Eclipse]——eclipse实现代码块折叠-类似于VS中的#region……#endregion http://www.cnblogs.com/Micheal-G/articles/507 ...

  6. eclipse安装Eclipse Memory Analyzer插件

    在Install New software中输入 http://archive.eclipse.org/mat/1.2/update-site/ 然后选择Memory Analyzer for Ecl ...

  7. 【Eclipse】 Eclipse 中JPEGEncodeParam 错误波浪线问题

    [异常信息] Description Resource Path Location Type Access restriction: The method encode(BufferedImage, ...

  8. 【Eclipse】eclipse che 协作开发

    http://www.eclipse.org/che/ http://blog.csdn.net/ccfeng2008/article/details/50881024 http://www.osch ...

  9. eclipse dbviewer,eclipse java8

    进入/home/xxx(用户名)/.local/share/applications,看是否有eclipse和深度音乐desktop配置文件,为eclipse.desktop配置图标, 那现在终端输入 ...

随机推荐

  1. 25.Remove Nth Node From End of List（删除链表的倒数第n个节点）

    Level:   Medium 题目描述: Given a linked list, remove the n-th node from the end of list and return its ...

  2. X7-2存储节点操作系统盘上的变化

    我们知道,在X7-2之前,存储节点的12块机械硬盘的前2块(LUN0和LUN1)中各划出33GB的分区来做RAID1,这个RAID1再划出小的分区来存放操作系统和存储软件等. 但从X7-2开始,这发生 ...

  3. vue 利用 v-model 实现 双向传递数据..

    注意 <input type='hidden' :value='value'/> 变量名必须 是 value--- 不能叫其他名字++

  4. C++_类和动态内存分配5-使用指向对象的指针

    再探new和delete new为创建的每一个对象的名称字符串分配存储空间,这是在构造函数中进行的: 析构函数使用delete来释放这些内存. 字符串是一个字符数组,所以析构函数使用的是带中括号的de ...

  5. LeetCode905.按奇偶排序数组

    905.按奇偶排序数组 问题描述 给定一个非负整数数组 A,返回一个由 A 的所有偶数元素组成的数组,后面跟 A 的所有奇数元素. 你可以返回满足此条件的任何数组作为答案. 示例 输入:[3,1,2, ...

  6. express运行www后，在http://localhost:3000/查看返回会报 Cannot find module 'jade'

    解决方法:npm install --save express jade

  7. hbuilder设置自动px 转换成rem

    hbuilder里面有自动换算的 需要设置一下:工具–>选项–>Hbuilder–>代码助手设置.里面有个px自动转rem设置,按自己的实际情况设置就可以在每次输入px的时候有提示了 ...

  8. 获取url路径的正则

    package unit; import java.util.regex.Matcher; import java.util.regex.Pattern; public class Util { // ...

  9. Angular 怎么在加载中加入 Loading 提示框

    [转自] http://zhidao.baidu.com/link?url=MX9eSRkQbBC8zrjsCi-t_PsftVRSIjiaUTHhdp6eDiZ0IqaZehSCo3n7fFXWyP ...

  10. web app与app的区别，即html5与app的区别

    公司准备要做一个项目,是p2p配资的app.在网上问了一些人后,发现有的是直接有html5做好后,用软件封装的.之前我学过app的开发,当时Android版本的,知道开发Android app时写的代 ...