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/*******************************************************************************
* 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);
}
}
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