/**
* Copyright (C) 2016 Red Hat, Inc. and/or its affiliates.
*
* 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 org.jboss.errai.common.client.ui;
import java.util.IdentityHashMap;
import java.util.Map;
/**
*
* @author Max Barkley <mbarkley@redhat.com>
*/
public class NativeHasValueAccessors {
public static interface Accessor<T> {
T get();
void set(T value);
}
private static final Map<Object, Accessor<?>> instanceAccessors = new IdentityHashMap<>();
public static void registerAccessor(final Object instance, final Accessor<?> accessor) {
instanceAccessors.put(instance, accessor);
}
public static Accessor<?> getAccessor(final Object instance) {
final Accessor<?> accessor = instanceAccessors.get(instance);
if (accessor == null) {
throw new RuntimeException("No accessor found for " + instance);
}
else {
return accessor;
}
}
public static boolean hasValueAccessor(final Object instance) {
return instanceAccessors.containsKey(instance);
}
private NativeHasValueAccessors() {}
}