Added the manager extension point.

6 files changed, 422 insertions, 271 deletions

diff --git a/examples/bundles/org.eclipse.ecf.sdo/build.properties b/examples/bundles/org.eclipse.ecf.sdo/build.properties
index 9bf14fcd7..193cfb156 100644
--- a/examples/bundles/org.eclipse.ecf.sdo/build.properties
+++ b/examples/bundles/org.eclipse.ecf.sdo/build.properties
@@ -2,4 +2,5 @@ source.ecf.sdo.jar = src/
 output.ecf.sdo.jar = bin/
 bin.includes = plugin.xml,\
                META-INF/,\
-               ecf.sdo.jar
+               ecf.sdo.jar,\
+               schema/
diff --git a/examples/bundles/org.eclipse.ecf.sdo/plugin.xml b/examples/bundles/org.eclipse.ecf.sdo/plugin.xml
index 9f1961178..e87b752c5 100644
--- a/examples/bundles/org.eclipse.ecf.sdo/plugin.xml
+++ b/examples/bundles/org.eclipse.ecf.sdo/plugin.xml
@@ -1,5 +1,13 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <?eclipse version="3.0"?>
 <plugin>
+   <extension-point id="manager" name="Data Graph Sharing Manager" schema="schema/manager.exsd"/>
 
+   <extension
+         point="org.eclipse.ecf.sdo.manager">
+      <manager
+            class="org.eclipse.ecf.internal.sdo.DataGraphSharingManager"
+            name="default">
+      </manager>
+   </extension>
 </plugin>
\ No newline at end of file
diff --git a/examples/bundles/org.eclipse.ecf.sdo/schema/manager.exsd b/examples/bundles/org.eclipse.ecf.sdo/schema/manager.exsd
new file mode 100644
index 000000000..54ce9bda0
--- /dev/null
+++ b/examples/bundles/org.eclipse.ecf.sdo/schema/manager.exsd
@@ -0,0 +1,117 @@
+<?xml version='1.0' encoding='UTF-8'?>
+<!-- Schema file written by PDE -->
+<schema targetNamespace="org.eclipse.ecf.sdo">
+<annotation>
+      <appInfo>
+         <meta.schema plugin="org.eclipse.ecf.sdo" id="manager" name="Data Graph Sharing Manager"/>
+      </appInfo>
+      <documentation>
+         Allows plugins to provide custom implementations of the Data Graph Sharing facility by registering uniquely named Data Graph Sharing Managers (classes that implement org.eclipse.ecf.sdo.IDataGraphSharingManager), which are responsible for producing per-container instances of Data Graph Sharing (org.eclipse.ecf.sdo.IDataGraphSharing).
+      </documentation>
+   </annotation>
+
+   <element name="extension">
+      <complexType>
+         <sequence>
+            <element ref="manager" minOccurs="1" maxOccurs="unbounded"/>
+         </sequence>
+         <attribute name="point" type="string" use="required">
+            <annotation>
+               <documentation>
+                  
+               </documentation>
+            </annotation>
+         </attribute>
+         <attribute name="id" type="string">
+            <annotation>
+               <documentation>
+                  
+               </documentation>
+            </annotation>
+         </attribute>
+         <attribute name="name" type="string">
+            <annotation>
+               <documentation>
+                  
+               </documentation>
+               <appInfo>
+                  <meta.attribute translatable="true"/>
+               </appInfo>
+            </annotation>
+         </attribute>
+      </complexType>
+   </element>
+
+   <element name="manager">
+      <annotation>
+         <appInfo>
+            <meta.element labelAttribute="name"/>
+         </appInfo>
+      </annotation>
+      <complexType>
+         <attribute name="name" type="string" use="required">
+            <annotation>
+               <documentation>
+                  
+               </documentation>
+            </annotation>
+         </attribute>
+         <attribute name="class" type="string" use="required">
+            <annotation>
+               <documentation>
+                  
+               </documentation>
+               <appInfo>
+                  <meta.attribute kind="java" basedOn="org.eclipse.ecf.sdo.IDataGraphSharingManager"/>
+               </appInfo>
+            </annotation>
+         </attribute>
+      </complexType>
+   </element>
+
+   <annotation>
+      <appInfo>
+         <meta.section type="since"/>
+      </appInfo>
+      <documentation>
+         [Enter the first release in which this extension point appears.]
+      </documentation>
+   </annotation>
+
+   <annotation>
+      <appInfo>
+         <meta.section type="examples"/>
+      </appInfo>
+      <documentation>
+         [Enter extension point usage example here.]
+      </documentation>
+   </annotation>
+
+   <annotation>
+      <appInfo>
+         <meta.section type="apiInfo"/>
+      </appInfo>
+      <documentation>
+         [Enter API information here.]
+      </documentation>
+   </annotation>
+
+   <annotation>
+      <appInfo>
+         <meta.section type="implementation"/>
+      </appInfo>
+      <documentation>
+         [Enter information about supplied implementation of this extension point.]
+      </documentation>
+   </annotation>
+
+   <annotation>
+      <appInfo>
+         <meta.section type="copyright"/>
+      </appInfo>
+      <documentation>
+         
+      </documentation>
+   </annotation>
+
+</schema>
diff --git a/examples/bundles/org.eclipse.ecf.sdo/src/org/eclipse/ecf/internal/sdo/DataGraphSharing.java b/examples/bundles/org.eclipse.ecf.sdo/src/org/eclipse/ecf/internal/sdo/DataGraphSharing.java
index d1dcf55c5..266b75650 100644
--- a/examples/bundles/org.eclipse.ecf.sdo/src/org/eclipse/ecf/internal/sdo/DataGraphSharing.java
+++ b/examples/bundles/org.eclipse.ecf.sdo/src/org/eclipse/ecf/internal/sdo/DataGraphSharing.java
@@ -31,128 +31,128 @@ import commonj.sdo.DataGraph;
  * @author pnehrer
  */
 public class DataGraphSharing extends PlatformObject implements
-		IDataGraphSharing, ISharedObject {
-
-	public static final String DATA_GRAPH_SHARING_ID = DataGraphSharing.class
-			.getName();
-
-	private ISharedObjectConfig config;
-
-	private boolean debug;
-
-	/*
-	 * (non-Javadoc)
-	 * 
-	 * @see org.eclipse.ecf.sdo.IDataGraphSharing#publish(commonj.sdo.DataGraph,
-	 *      org.eclipse.ecf.core.identity.ID,
-	 *      org.eclipse.ecf.sdo.IUpdateProvider,
-	 *      org.eclipse.ecf.sdo.IUpdateConsumer,
-	 *      org.eclipse.ecf.sdo.IPublicationCallback)
-	 */
-	public synchronized ISharedDataGraph publish(DataGraph dataGraph, ID id,
-			IUpdateProvider provider, IUpdateConsumer consumer,
-			IPublicationCallback callback) throws ECFException {
-
-		if (config == null)
-			throw new ECFException("Not initialized.");
-
-		// create local object
-		ISharedObjectManager mgr = config.getContext().getSharedObjectManager();
-		SharedDataGraph sdg = new SharedDataGraph(dataGraph, provider,
-				consumer, callback, null);
-		sdg.setDebug(debug);
-
-		mgr.addSharedObject(id, sdg, null, null);
-		return sdg;
-	}
-
-	/*
-	 * (non-Javadoc)
-	 * 
-	 * @see org.eclipse.ecf.sdo.IDataGraphSharing#subscribe(org.eclipse.ecf.core.identity.ID,
-	 *      org.eclipse.ecf.sdo.ISubscriptionCallback,
-	 *      org.eclipse.ecf.sdo.IUpdateProvider,
-	 *      org.eclipse.ecf.sdo.IUpdateConsumer)
-	 */
-	public synchronized ISharedDataGraph subscribe(ID id,
-			IUpdateProvider provider, IUpdateConsumer consumer,
-			ISubscriptionCallback callback) throws ECFException {
-
-		if (config == null)
-			throw new ECFException("Not initialized.");
-
-		// create local object
-		ISharedObjectManager mgr = config.getContext().getSharedObjectManager();
-		SharedDataGraph sdg = new SharedDataGraph(null, provider, consumer,
-				null, callback);
-		sdg.setDebug(debug);
-
-		mgr.addSharedObject(id, sdg, null, null);
-		return sdg;
-	}
-
-	/*
-	 * (non-Javadoc)
-	 * 
-	 * @see org.eclipse.ecf.sdo.IDataGraphSharing#dispose()
-	 */
-	public synchronized void dispose() {
-		if (config != null)
-			config.getContext().getSharedObjectManager().removeSharedObject(
-					config.getSharedObjectID());
-	}
-
-	/**
-	 * Sets the debug flag.
-	 * 
-	 * @param debug
-	 * @deprecated Use Eclipse's plugin tracing support instead.
-	 */
-	public void setDebug(boolean debug) {
-		this.debug = debug;
-	}
-
-	/*
-	 * (non-Javadoc)
-	 * 
-	 * @see org.eclipse.ecf.core.ISharedObject#init(org.eclipse.ecf.core.ISharedObjectConfig)
-	 */
-	public synchronized void init(ISharedObjectConfig initData)
-			throws SharedObjectInitException {
-
-		if (config == null)
-			config = initData;
-		else
-			throw new SharedObjectInitException("Already initialized.");
-	}
-
-	/*
-	 * (non-Javadoc)
-	 * 
-	 * @see org.eclipse.ecf.core.ISharedObject#handleEvent(org.eclipse.ecf.core.util.Event)
-	 */
-	public void handleEvent(Event event) {
-	}
-
-	/*
-	 * (non-Javadoc)
-	 * 
-	 * @see org.eclipse.ecf.core.ISharedObject#handleEvents(org.eclipse.ecf.core.util.Event[])
-	 */
-	public void handleEvents(Event[] events) {
-		for (int i = 0; i < events.length; ++i)
-			handleEvent(events[i]);
-	}
-
-	/*
-	 * (non-Javadoc)
-	 * 
-	 * @see org.eclipse.ecf.core.ISharedObject#dispose(org.eclipse.ecf.core.identity.ID)
-	 */
-	public synchronized void dispose(ID containerID) {
-		if (config != null
-				&& config.getContext().getLocalContainerID()
-						.equals(containerID))
-			config = null;
-	}
+        IDataGraphSharing, ISharedObject {
+
+    static final String DATA_GRAPH_SHARING_ID = DataGraphSharing.class
+            .getName();
+
+    private ISharedObjectConfig config;
+
+    private boolean debug;
+
+    /*
+     * (non-Javadoc)
+     * 
+     * @see org.eclipse.ecf.sdo.IDataGraphSharing#publish(commonj.sdo.DataGraph,
+     *      org.eclipse.ecf.core.identity.ID,
+     *      org.eclipse.ecf.sdo.IUpdateProvider,
+     *      org.eclipse.ecf.sdo.IUpdateConsumer,
+     *      org.eclipse.ecf.sdo.IPublicationCallback)
+     */
+    public synchronized ISharedDataGraph publish(DataGraph dataGraph, ID id,
+            IUpdateProvider provider, IUpdateConsumer consumer,
+            IPublicationCallback callback) throws ECFException {
+
+        if (config == null)
+            throw new ECFException("Not initialized.");
+
+        // create local object
+        ISharedObjectManager mgr = config.getContext().getSharedObjectManager();
+        SharedDataGraph sdg = new SharedDataGraph(dataGraph, provider,
+                consumer, callback, null);
+        sdg.setDebug(debug);
+
+        mgr.addSharedObject(id, sdg, null, null);
+        return sdg;
+    }
+
+    /*
+     * (non-Javadoc)
+     * 
+     * @see org.eclipse.ecf.sdo.IDataGraphSharing#subscribe(org.eclipse.ecf.core.identity.ID,
+     *      org.eclipse.ecf.sdo.ISubscriptionCallback,
+     *      org.eclipse.ecf.sdo.IUpdateProvider,
+     *      org.eclipse.ecf.sdo.IUpdateConsumer)
+     */
+    public synchronized ISharedDataGraph subscribe(ID id,
+            IUpdateProvider provider, IUpdateConsumer consumer,
+            ISubscriptionCallback callback) throws ECFException {
+
+        if (config == null)
+            throw new ECFException("Not initialized.");
+
+        // create local object
+        ISharedObjectManager mgr = config.getContext().getSharedObjectManager();
+        SharedDataGraph sdg = new SharedDataGraph(null, provider, consumer,
+                null, callback);
+        sdg.setDebug(debug);
+
+        mgr.addSharedObject(id, sdg, null, null);
+        return sdg;
+    }
+
+    /*
+     * (non-Javadoc)
+     * 
+     * @see org.eclipse.ecf.sdo.IDataGraphSharing#dispose()
+     */
+    public synchronized void dispose() {
+        if (config != null)
+            config.getContext().getSharedObjectManager().removeSharedObject(
+                    config.getSharedObjectID());
+    }
+
+    /**
+     * Sets the debug flag.
+     * 
+     * @param debug
+     * @deprecated Use Eclipse's plugin tracing support instead.
+     */
+    public void setDebug(boolean debug) {
+        this.debug = debug;
+    }
+
+    /*
+     * (non-Javadoc)
+     * 
+     * @see org.eclipse.ecf.core.ISharedObject#init(org.eclipse.ecf.core.ISharedObjectConfig)
+     */
+    public synchronized void init(ISharedObjectConfig initData)
+            throws SharedObjectInitException {
+
+        if (config == null)
+            config = initData;
+        else
+            throw new SharedObjectInitException("Already initialized.");
+    }
+
+    /*
+     * (non-Javadoc)
+     * 
+     * @see org.eclipse.ecf.core.ISharedObject#handleEvent(org.eclipse.ecf.core.util.Event)
+     */
+    public void handleEvent(Event event) {
+    }
+
+    /*
+     * (non-Javadoc)
+     * 
+     * @see org.eclipse.ecf.core.ISharedObject#handleEvents(org.eclipse.ecf.core.util.Event[])
+     */
+    public void handleEvents(Event[] events) {
+        for (int i = 0; i < events.length; ++i)
+            handleEvent(events[i]);
+    }
+
+    /*
+     * (non-Javadoc)
+     * 
+     * @see org.eclipse.ecf.core.ISharedObject#dispose(org.eclipse.ecf.core.identity.ID)
+     */
+    public synchronized void dispose(ID containerID) {
+        if (config != null
+                && config.getContext().getLocalContainerID()
+                        .equals(containerID))
+            config = null;
+    }
 }
\ No newline at end of file
diff --git a/examples/bundles/org.eclipse.ecf.sdo/src/org/eclipse/ecf/internal/sdo/DataGraphSharingManager.java b/examples/bundles/org.eclipse.ecf.sdo/src/org/eclipse/ecf/internal/sdo/DataGraphSharingManager.java
new file mode 100644
index 000000000..b126aea28
--- /dev/null
+++ b/examples/bundles/org.eclipse.ecf.sdo/src/org/eclipse/ecf/internal/sdo/DataGraphSharingManager.java
@@ -0,0 +1,44 @@
+/*******************************************************************************
+ * Copyright (c) 2004 Peter Nehrer and Composent, Inc.
+ * All rights reserved. This program and the accompanying materials 
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ * 
+ * Contributors:
+ *     Peter Nehrer - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.ecf.internal.sdo;
+
+import org.eclipse.ecf.core.ISharedObjectContainer;
+import org.eclipse.ecf.core.ISharedObjectManager;
+import org.eclipse.ecf.core.identity.ID;
+import org.eclipse.ecf.core.identity.IDFactory;
+import org.eclipse.ecf.core.util.ECFException;
+import org.eclipse.ecf.sdo.IDataGraphSharing;
+import org.eclipse.ecf.sdo.IDataGraphSharingManager;
+
+/**
+ * @author pnehrer
+ */
+public class DataGraphSharingManager implements IDataGraphSharingManager {
+
+    /*
+     * (non-Javadoc)
+     * 
+     * @see org.eclipse.ecf.sdo.IDataGraphSharingManager#getInstance(org.eclipse.ecf.core.ISharedObjectContainer)
+     */
+    public synchronized IDataGraphSharing getInstance(
+            ISharedObjectContainer container) throws ECFException {
+        ISharedObjectManager mgr = container.getSharedObjectManager();
+        ID id = IDFactory.makeStringID(DataGraphSharing.DATA_GRAPH_SHARING_ID);
+        DataGraphSharing result = (DataGraphSharing) mgr.getSharedObject(id);
+        if (result == null) {
+            result = new DataGraphSharing();
+            // result.setDebug(debug);
+            mgr.addSharedObject(id, result, null, null);
+        }
+
+        return result;
+    }
+}
diff --git a/examples/bundles/org.eclipse.ecf.sdo/src/org/eclipse/ecf/sdo/SDOPlugin.java b/examples/bundles/org.eclipse.ecf.sdo/src/org/eclipse/ecf/sdo/SDOPlugin.java
index 4a3b91127..a1c497a33 100644
--- a/examples/bundles/org.eclipse.ecf.sdo/src/org/eclipse/ecf/sdo/SDOPlugin.java
+++ b/examples/bundles/org.eclipse.ecf.sdo/src/org/eclipse/ecf/sdo/SDOPlugin.java
@@ -18,11 +18,7 @@ import org.eclipse.core.runtime.IRegistryChangeListener;
 import org.eclipse.core.runtime.Platform;
 import org.eclipse.core.runtime.Plugin;
 import org.eclipse.ecf.core.ISharedObjectContainer;
-import org.eclipse.ecf.core.ISharedObjectManager;
-import org.eclipse.ecf.core.identity.ID;
-import org.eclipse.ecf.core.identity.IDFactory;
 import org.eclipse.ecf.core.util.ECFException;
-import org.eclipse.ecf.internal.sdo.DataGraphSharing;
 import org.osgi.framework.BundleContext;
 
 /**
@@ -36,147 +32,132 @@ import org.osgi.framework.BundleContext;
  */
 public class SDOPlugin extends Plugin {
 
-	private static final String MANAGER_EXTENSION_POINT = "manager";
-
-	private static final String MANAGER_EXTENSION = "manager";
-
-	private static final String ATTR_NAME = "name";
-
-	private static final String ATTR_CLASS = "class";
-
-	// The shared instance.
-	private static SDOPlugin plugin;
-
-	private IRegistryChangeListener registryChangeListener;
-
-	private boolean debug;
-
-	/**
-	 * The constructor.
-	 */
-	public SDOPlugin() {
-		super();
-		plugin = this;
-	}
-
-	/**
-	 * This method is called upon plug-in activation
-	 */
-	public void start(BundleContext context) throws Exception {
-		super.start(context);
-		registryChangeListener = new IRegistryChangeListener() {
-			public void registryChanged(IRegistryChangeEvent event) {
-				IExtensionDelta[] deltas = event.getExtensionDeltas(getBundle()
-						.getSymbolicName(), MANAGER_EXTENSION_POINT);
-				for (int i = 0; i < deltas.length; ++i) {
-					switch (deltas[i].getKind()) {
-					case IExtensionDelta.ADDED:
-						registerManagers(deltas[i].getExtension()
-								.getConfigurationElements());
-						break;
-
-					case IExtensionDelta.REMOVED:
-						IConfigurationElement[] elems = deltas[i]
-								.getExtension().getConfigurationElements();
-						for (int j = 0; j < elems.length; ++j) {
-							IConfigurationElement[] children = elems[j]
-									.getChildren(MANAGER_EXTENSION);
-							for (int k = 0; k < children.length; ++k) {
-								String name = children[k]
-										.getAttribute(ATTR_NAME);
-								if (name != null && name.length() > 0)
-									DataGraphSharingFactory
-											.unregisterManager(name);
-							}
-						}
-
-						break;
-					}
-				}
-			}
-		};
-
-		IExtensionRegistry reg = Platform.getExtensionRegistry();
-		IConfigurationElement[] elems = reg.getConfigurationElementsFor(
-				getBundle().getSymbolicName(), MANAGER_EXTENSION_POINT);
-		registerManagers(elems);
-	}
-
-	private void registerManagers(IConfigurationElement[] elems) {
-		for (int i = 0; i < elems.length; ++i) {
-			IConfigurationElement[] children = elems[i]
-					.getChildren(MANAGER_EXTENSION);
-			for (int j = 0; j < children.length; ++j) {
-				String name = children[j].getAttribute(ATTR_NAME);
-				if (name == null || name.length() == 0)
-					continue;
-
-				IDataGraphSharingManager mgr;
-				try {
-					mgr = (IDataGraphSharingManager) children[j]
-							.createExecutableExtension(ATTR_CLASS);
-				} catch (Exception ex) {
-					continue;
-				}
-
-				DataGraphSharingFactory.registerManager(name, mgr);
-			}
-		}
-	}
-
-	/**
-	 * This method is called when the plug-in is stopped
-	 */
-	public void stop(BundleContext context) throws Exception {
-		if (registryChangeListener != null)
-			Platform.getExtensionRegistry().removeRegistryChangeListener(
-					registryChangeListener);
-
-		DataGraphSharingFactory.unregisterAllManagers();
-		super.stop(context);
-	}
-
-	/**
-	 * Returns the shared instance.
-	 */
-	public static SDOPlugin getDefault() {
-		return plugin;
-	}
-
-	/**
-	 * @param container
-	 * @return
-	 * @throws ECFException
-	 * @deprecated Use
-	 *             {@link DataGraphSharingFactory#getDataGraphSharing(ISharedObjectContainer, String) DataGraphSharingFactory.getDataGraphSharing(ISharedObjectContainer, String)}
-	 *             instead.
-	 */
-	public IDataGraphSharing getDataGraphSharing(
-			ISharedObjectContainer container) throws ECFException {
-
-		ISharedObjectManager mgr = container.getSharedObjectManager();
-		ID id = IDFactory.makeStringID(DataGraphSharing.DATA_GRAPH_SHARING_ID);
-		synchronized (container) {
-			DataGraphSharing result = (DataGraphSharing) mgr
-					.getSharedObject(id);
-			if (result == null) {
-				result = new DataGraphSharing();
-				result.setDebug(debug);
-				mgr.addSharedObject(id, result, null, null);
-			}
-
-			return result;
-		}
-	}
-
-	/**
-	 * Sets the debug flag.
-	 * 
-	 * @param debug
-	 * @deprecated Use Eclipse plug-in tracing support instead.
-	 */
-	public void setDebug(boolean debug) {
-		this.debug = debug;
-	}
+    private static final String MANAGER_EXTENSION_POINT = "manager";
+
+    private static final String MANAGER_EXTENSION = "manager";
+
+    private static final String ATTR_NAME = "name";
+
+    private static final String ATTR_CLASS = "class";
+
+    // The shared instance.
+    private static SDOPlugin plugin;
+
+    private IRegistryChangeListener registryChangeListener;
+
+    private boolean debug;
+
+    /**
+     * The constructor.
+     */
+    public SDOPlugin() {
+        super();
+        plugin = this;
+    }
+
+    /**
+     * This method is called upon plug-in activation
+     */
+    public void start(BundleContext context) throws Exception {
+        super.start(context);
+        registryChangeListener = new IRegistryChangeListener() {
+            public void registryChanged(IRegistryChangeEvent event) {
+                IExtensionDelta[] deltas = event.getExtensionDeltas(getBundle()
+                        .getSymbolicName(), MANAGER_EXTENSION_POINT);
+                for (int i = 0; i < deltas.length; ++i) {
+                    switch (deltas[i].getKind()) {
+                    case IExtensionDelta.ADDED:
+                        registerManagers(deltas[i].getExtension()
+                                .getConfigurationElements());
+                        break;
+
+                    case IExtensionDelta.REMOVED:
+                        IConfigurationElement[] elems = deltas[i]
+                                .getExtension().getConfigurationElements();
+                        for (int j = 0; j < elems.length; ++j) {
+                            if (!MANAGER_EXTENSION.equals(elems[j].getName()))
+                                continue;
+
+                            String name = elems[j].getAttribute(ATTR_NAME);
+                            if (name != null && name.length() > 0)
+                                DataGraphSharingFactory.unregisterManager(name);
+                        }
+
+                        break;
+                    }
+                }
+            }
+        };
+
+        IExtensionRegistry reg = Platform.getExtensionRegistry();
+        IConfigurationElement[] elems = reg.getConfigurationElementsFor(
+                getBundle().getSymbolicName(), MANAGER_EXTENSION_POINT);
+        registerManagers(elems);
+    }
+
+    private void registerManagers(IConfigurationElement[] elems) {
+        for (int i = 0; i < elems.length; ++i) {
+            if (!MANAGER_EXTENSION.equals(elems[i].getName()))
+                continue;
+
+            String name = elems[i].getAttribute(ATTR_NAME);
+            if (name == null || name.length() == 0)
+                continue;
+
+            IDataGraphSharingManager mgr;
+            try {
+                mgr = (IDataGraphSharingManager) elems[i]
+                        .createExecutableExtension(ATTR_CLASS);
+            } catch (Exception ex) {
+                continue;
+            }
+
+            DataGraphSharingFactory.registerManager(name, mgr);
+        }
+    }
+
+    /**
+     * This method is called when the plug-in is stopped
+     */
+    public void stop(BundleContext context) throws Exception {
+        if (registryChangeListener != null)
+            Platform.getExtensionRegistry().removeRegistryChangeListener(
+                    registryChangeListener);
+
+        DataGraphSharingFactory.unregisterAllManagers();
+        super.stop(context);
+    }
+
+    /**
+     * Returns the shared instance.
+     */
+    public static SDOPlugin getDefault() {
+        return plugin;
+    }
+
+    /**
+     * @param container
+     * @return
+     * @throws ECFException
+     * @deprecated Use
+     *             {@link DataGraphSharingFactory#getDataGraphSharing(ISharedObjectContainer, String) DataGraphSharingFactory.getDataGraphSharing(ISharedObjectContainer, String)}
+     *             instead.
+     */
+    public IDataGraphSharing getDataGraphSharing(
+            ISharedObjectContainer container) throws ECFException {
+
+        return DataGraphSharingFactory
+                .getDataGraphSharing(container, "default");
+    }
+
+    /**
+     * Sets the debug flag.
+     * 
+     * @param debug
+     * @deprecated Use Eclipse plug-in tracing support instead.
+     */
+    public void setDebug(boolean debug) {
+        this.debug = debug;
+    }
 
 }
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