/*
Copyright 2013, The Sporting Exchange Limited
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.betfair.platform.virtualheap.projection;
import com.betfair.platform.virtualheap.HMapScalar;
import com.betfair.platform.virtualheap.MapNode;
import com.betfair.platform.virtualheap.Node;
public class ScalarMapProjection<T> extends AbstractMapProjection<T> implements HMapScalar<T> {
private ScalarProjector<T> valueProjector;
public ScalarMapProjection(MapNode node, ScalarProjector<T> valueProjector) {
super(node);
this.valueProjector = valueProjector;
}
@Override
public T get(String key) {
Node value = node.getField(key);
if (value!=null) {
return value.project(valueProjector).get();
} else {
return null;
}
}
@Override
public void put(String key, T value) {
node.ensureField(key, valueProjector.getType()).project(valueProjector).set(value);
}
}