import org.openide.loaders.ExtensionList; //导入依赖的package包/类
final void initExtensions() {
    ExtensionList list = new ExtensionList();
    Set mimes = new HashSet<String>();
    for (Language language : LanguageRegistry.getInstance()) {
        
        if(language.useCustomEditorKit()) {
            //do not try to load files which has their own editor support and dataobject
            continue;
        }
        mimes.add(language.getMimeType());
        list.addMimeType(language.getMimeType());
    }
    setExtensions(list);
    registeredMimes = mimes;
    initialized = true;
}
 

import org.openide.loaders.ExtensionList; //导入依赖的package包/类
public void testOldLoaderThatChangesActionsBecomesModified () throws Exception {
    NbLoaderPool.waitFinished();
    
    DataObject first = DataObject.find(fo);
    assertTrue(first.getLoader().getClass().getName().contains("Default"));

    ExtensionList el = new ExtensionList();
    el.addExtension("prop");
    oldL.setExtensions(el);
    NbLoaderPool.waitFinished();
    
    
    DataObject snd = DataObject.find(fo);
    assertEquals("They are the same as nothing has been notified yet", first, snd);
    
    NbLoaderPool.installationFinished();
    NbLoaderPool.waitFinished();
    
    DataObject third = DataObject.find(fo);
    if (third == snd) {
        fail("They should not be the same: " + third);
    }
}
 

import org.openide.loaders.ExtensionList; //导入依赖的package包/类
/** Reads nothing from the stream.
* @param oi ignored
*/
@Override
public void readExternal (ObjectInput oi)
throws IOException, ClassNotFoundException {
    SafeException se;
    try {
        super.readExternal (oi);
        se = null;
    } catch (SafeException se2) {
        se = se2;
    }

    setExtensions ((ExtensionList)oi.readObject ());
    if (se != null) {
        throw se;
    }
}
 

import org.openide.loaders.ExtensionList; //导入依赖的package包/类
DummyItemLoader() {
    super("org.netbeans.spi.palette.DummyItemDataObject"); // NOI18N

    ExtensionList ext = new ExtensionList();
    ext.addExtension(ITEM_EXT);
    setExtensions(ext);
}
 

import org.openide.loaders.ExtensionList; //导入依赖的package包/类
/** Does initialization. Initializes extension list. */
protected void initialize () {
    super.initialize();

    ExtensionList ext = new ExtensionList();
    ext.addExtension("txt"); // NOI18N
    ext.addExtension("doc"); // NOI18N
    ext.addExtension("me"); // for read.me files // NOI18N
    ext.addExtension("policy"); // NOI18N
    ext.addExtension("mf"); // for manifest.mf files // NOI18N
    ext.addExtension("MF"); //  -""- // NOI18N
    ext.addExtension("log"); // log files are nice to be readable // NOI18N
    setExtensions(ext);
}
 

import org.openide.loaders.ExtensionList; //导入依赖的package包/类
/** Creates new PropertiesDataLoader. */
public PropertiesDataLoader() {
    super("org.netbeans.modules.properties.PropertiesDataObject"); // NOI18N
    
    // Set extentions. Due performance reasons do it here instead in initialize method.
    // During startup it's in findPrimaryFile method called getExtensions method. If the 
    // extentions list was not set in constructor the initialize method would be called
    // during startup, but we want to avoid the initialize call since we don't need
    // actions and display name initialized during startup time.
    ExtensionList extList = new ExtensionList();
    extList.addExtension(PROPERTIES_EXTENSION);
    // Add .impl for CORBA module.
    extList.addExtension("impl"); // NOI18N
    setExtensions(extList);
}
 

import org.openide.loaders.ExtensionList; //导入依赖的package包/类
/** Does initialization. Initializes display name,
 * extension list and the actions. */
@Override
protected void initialize () {
    super.initialize();
    
    ExtensionList ext = getExtensions();
    ext.addExtension (ENT_EXT);
    ext.addMimeType (EntityDataObject.MIME_TYPE);
    ext.addMimeType ("application/xml-external-parsed-entity"); // http://www.ietf.org/rfc/rfc3023.txt // NOI18N
    setExtensions (ext);
}
 

import org.openide.loaders.ExtensionList; //导入依赖的package包/类
@Override
protected void initialize() {
    super.initialize();
    ExtensionList extensions = new ExtensionList();
    extensions.addMimeType(SQL_MIME_TYPE);
    setExtensions(extensions);
}
 

import org.openide.loaders.ExtensionList; //导入依赖的package包/类
@Override
protected void initialize() {
    super.initialize();
    ExtensionList extensions = new ExtensionList();
    extensions.addExtension("sql");
    setExtensions(extensions);
}
 

import org.openide.loaders.ExtensionList; //导入依赖的package包/类
public DummyDataLoader() {
    super("org.openidex.search.DummyDataObject");
    
    ExtensionList extList = new ExtensionList();
    extList.addExtension(dummyExt);
    setExtensions(extList);
}
 

import org.openide.loaders.ExtensionList; //导入依赖的package包/类
@Override
protected void initialize() {
    super.initialize();
    ExtensionList extensions = new ExtensionList();
    extensions.addExtension(JAVA_EXTENSION);
    extensions.addMimeType(JAVA_MIME_TYPE);
    setExtensions(extensions);
}
 

import org.openide.loaders.ExtensionList; //导入依赖的package包/类
/** Initizalized loader, i.e. its extension list. Overrides superclass method. */
@Override
protected void initialize () {
    super.initialize();

    ExtensionList extensions = new ExtensionList ();
    extensions.addMimeType(PDF_MIME_TYPE);
    extensions.addMimeType("application/x-pdf");                    //NOI18N
    extensions.addMimeType("application/vnd.pdf");                  //NOI18N
    extensions.addMimeType("application/acrobat");                  //NOI18N
    extensions.addMimeType("text/pdf");                             //NOI18N
    extensions.addMimeType("text/x-pdf");                           //NOI18N
    setExtensions (extensions);
}
 

import org.openide.loaders.ExtensionList; //导入依赖的package包/类
/** Creates new image loader. */
public ImageDataLoader() {
    // Set the representation class.
    super("org.netbeans.modules.image.ImageDataObject"); // NOI18N
    
    ExtensionList ext = new ExtensionList();
    ext.addMimeType(GIF_MIME_TYPE);
    ext.addMimeType(JPEG_MIME_TYPE);
    ext.addMimeType(PNG_MIME_TYPE);
    setExtensions(ext);
}
 

import org.openide.loaders.ExtensionList; //导入依赖的package包/类
@Override
protected void initialize() {
    super.initialize();
    ExtensionList extensions = new ExtensionList();
    extensions.addExtension(".ldbg");
    extensions.addExtension(".linterp");
    extensions.addMimeType(LexerDebuggerEditorKit.LEXER_DEBUGGER_MIME_TYPE);
    setExtensions(extensions);
}
 

import org.openide.loaders.ExtensionList; //导入依赖的package包/类
@Override
protected void initialize() {
    super.initialize();
    ExtensionList extensions = new ExtensionList();
    extensions.addExtension(".pdbg");
    extensions.addExtension(".pinterp");
    extensions.addMimeType(ParserDebuggerEditorKit.PARSER_DEBUGGER_MIME_TYPE);
    setExtensions(extensions);
}
 

import org.openide.loaders.ExtensionList; //导入依赖的package包/类
@Override
protected void initialize() {
    super.initialize();
    ExtensionList extensions = new ExtensionList();
    extensions.addExtension(".g");
    extensions.addExtension(".g3");
    extensions.addExtension(".g4");
    extensions.addMimeType(GrammarEditorKit.GRAMMAR_MIME_TYPE);
    setExtensions(extensions);
}
 

import org.openide.loaders.ExtensionList; //导入依赖的package包/类
@Override
protected void initialize() {
    super.initialize();
    ExtensionList extensions = new ExtensionList();
    extensions.addExtension(".st");
    extensions.addExtension(".stg");
    extensions.addMimeType(StringTemplateEditorKit.TEMPLATE_MIME_TYPE);
    setExtensions(extensions);
}
 

import org.openide.loaders.ExtensionList; //导入依赖的package包/类
@Override
protected void initialize() {
    super.initialize();
    ExtensionList extensions = new ExtensionList();
    extensions.addExtension(".go");
    extensions.addMimeType(GoEditorKit.GO_MIME_TYPE);
    setExtensions(extensions);
}
 

import org.openide.loaders.ExtensionList; //导入依赖的package包/类
@Override
protected void initialize() {
    super.initialize();
    
    ExtensionList ext = getExtensions();
    ext.addExtension(EXT);
    ext.addMimeType(MIME);
    setExtensions(ext);
}
 

import org.openide.loaders.ExtensionList; //导入依赖的package包/类
@Override
protected void initialize() {
    super.initialize();
    ExtensionList extensions = new ExtensionList();
    extensions.addExtension(".dot");
    extensions.addExtension(".gv");
    extensions.addMimeType("text/x-graphviz");
    setExtensions(extensions);
}