/*
* Copyright 2009 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations under
* the License.
*/
package com.google.gwt.rpc.client.impl;
import com.google.gwt.rpc.client.ast.CommandSink;
import com.google.gwt.rpc.client.ast.HasValues;
import com.google.gwt.rpc.client.ast.RpcCommand;
import com.google.gwt.rpc.client.ast.ValueCommand;
import com.google.gwt.user.client.rpc.SerializationException;
/**
* A simple CommandSink that adds observed values to a container command.
*/
public class HasValuesCommandSink extends CommandSink {
private HasValues container;
public HasValuesCommandSink(HasValues container) {
this.container = container;
}
@Override
public void accept(RpcCommand command) throws SerializationException {
if (!(command instanceof ValueCommand)) {
throw new SerializationException(command.getClass().getName());
}
container.addValue((ValueCommand) command);
}
/**
* Does nothing.
*/
@Override
public void finish() throws SerializationException {
}
}