/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.apache.ignite.internal.util.lang;
import java.io.Serializable;
import java.util.Map;
import org.apache.ignite.internal.util.tostring.GridToStringInclude;
import org.apache.ignite.internal.util.typedef.F;
import org.apache.ignite.internal.util.typedef.internal.S;
/**
* Simple {@link java.util.Map.Entry} implementation.
*/
public class GridMapEntry<K, V> implements Map.Entry<K, V>, Serializable {
/** */
private static final long serialVersionUID = 0L;
/** */
@GridToStringInclude
private K key;
/** */
@GridToStringInclude
private V val;
/**
* @param key Key.
* @param val Value.
*/
public GridMapEntry(K key, V val) {
this.key = key;
this.val = val;
}
/** {@inheritDoc} */
@Override public K getKey() {
return key;
}
/** {@inheritDoc} */
@Override public V getValue() {
return val;
}
/** {@inheritDoc} */
@Override public V setValue(V val) {
V old = this.val;
this.val = val;
return old;
}
/** {@inheritDoc} */
@Override public boolean equals(Object o) {
if (this == o)
return true;
if (o == null || getClass() != o.getClass())
return false;
GridMapEntry e = (GridMapEntry)o;
return F.eq(key, e.key) && F.eq(val, e.val);
}
/** {@inheritDoc} */
@Override public int hashCode() {
return 31 * (key != null ? key.hashCode() : 0) + (val != null ? val.hashCode() : 0);
}
/** {@inheritDoc} */
@Override public String toString() {
return S.toString(GridMapEntry.class, this);
}
}