| /******************************************************************************* |
| * Copyright (c) 2001, 2005 IBM Corporation and others. |
| * 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: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.jem.internal.proxy.core; |
| /* |
| |
| |
| */ |
| |
| |
| import java.text.MessageFormat; |
| |
| import org.eclipse.core.runtime.IStatus; |
| import org.eclipse.core.runtime.Status; |
| /** |
| * This is a wrapper for an java.util.Iterator proxy. |
| * It provides the iterator methods to interface to |
| * the proxy. |
| */ |
| |
| public class IteratorBeanProxyWrapper { |
| protected final IBeanProxy fIterator; |
| protected final JavaStandardBeanProxyConstants fConstants; |
| |
| /** |
| * Construct with the collection. |
| */ |
| public IteratorBeanProxyWrapper(IBeanProxy anIteratorProxy) { |
| if (!anIteratorProxy.getTypeProxy().isKindOf(anIteratorProxy.getProxyFactoryRegistry().getBeanTypeProxyFactory().getBeanTypeProxy("java.util.Iterator"))) //$NON-NLS-1$ |
| throw new ClassCastException(MessageFormat.format(ProxyMessages.ClassCast_EXC__IncorrectType, new Object[] {anIteratorProxy.getTypeProxy().getTypeName(), "java.util.Iterator"})); //$NON-NLS-1$ |
| else |
| fIterator = anIteratorProxy; |
| |
| fConstants = JavaStandardBeanProxyConstants.getConstants(anIteratorProxy.getProxyFactoryRegistry()); |
| } |
| |
| /** |
| * Answer the iterator proxy that this is wrappering. |
| */ |
| public IBeanProxy getBeanProxy() { |
| return fIterator; |
| } |
| |
| /** |
| * equals - Pass it on to the proxy to handle this. |
| */ |
| public boolean equals(Object object) { |
| return fIterator.equals(object); |
| } |
| |
| /** |
| * hashCode - Pass it on to the proxy to handle this. |
| */ |
| public int hashCode() { |
| return fIterator.hashCode(); |
| } |
| |
| /** |
| * Iterator accessors |
| */ |
| public boolean hasNext() { |
| try { |
| return ((IBooleanBeanProxy) fConstants.getIteratorHasNext().invoke(fIterator)).booleanValue(); |
| } catch (ThrowableProxy e) { |
| // This shouldn't occur, so just log it. |
| ProxyPlugin.getPlugin().getLogger().log(new Status(IStatus.ERROR, ProxyPlugin.getPlugin().getBundle().getSymbolicName(), 0, ProxyMessages.UnexpectedException_EXC_, e)); |
| return false; |
| } |
| } |
| public IBeanProxy next() throws ThrowableProxy { |
| return fConstants.getIteratorNext().invoke(fIterator); |
| } |
| public void remove() throws ThrowableProxy { |
| fConstants.getIteratorRemove().invoke(fIterator); |
| } |
| |
| } |