eclipse plugin development:

E:\workspaces\Eclipse_workspace_rcp\.metadata\.plugins\org.eclipse.pde.core\Eclipse Application

set the preferencestore in where:

setPreferenceStore(Activator.getDefault().getPreferenceStore());

http://blog.csdn.net/jimesum1/article/details/2413010

http://www.cnblogs.com/decarl/archive/2012/05/15/2502084.html

设置的值会保存到
runtime-myDesigner.product\.metadata\.plugins\org.eclipse.core.runtime\.settings中会生成文件

E:\workspaces\runtime-EclipseApplication\.metadata\.plugins\org.eclipse.core.runtime\.settings\com.geee.cucumber.pref

BEST DOCUMENT:

http://demo.netfoucs.com/luoww1/article/details/34425305

//将用户引导至首选项配置页面         PreferenceManager manager = PlatformUI.getWorkbench().getPreferenceManager();          Shell parentShell = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getShell();          

PreferenceDialog pd = new PreferenceDialog(parentShell, manager);        pd.setSelectedNode("com.workflow.preferences.page.DBPreferencePage");//设置选中的页面  (org.eclipse.ui.preferencePages 扩展点中page的ID)        pd.open();  PreferencesUtil.createPreferenceDialogOn(new Shell(),"com.workflow.preferences.page.DBPreferencePage", new String[]{"com.workflow.preferences.page.WorkFlowBasePreferencePage","com.workflow.preferences.page.DBPreferencePage"}, null).open(); //上面的new string 数组参数主要定义左边显示哪些首页项节点栏，若为null，就显示所有的所选项

1. preference for plugin store in this place for every store key:

E:\workspaces\runtime-EclipseApplication\.metadata\.plugins\org.eclipse.core.runtime\.settings\

like below:

choicePreference=choice1eclipse.preferences.version=1stringPreference=3333333333

2. then we set the default store value .

3.createContent should  set these stored value

4.performOK and performApply to set the value.

eclipse preference plugin development store and get