MapValueByKeySelector.java

package fr.openwide.core.jpa.more.business.difference.selector;

import org.apache.commons.lang3.builder.HashCodeBuilder;

import com.google.common.base.Objects;

import de.danielbechler.diff.selector.ElementSelector;
import de.danielbechler.util.Strings;

public class MapValueByKeySelector<K> extends ElementSelector implements IKeyAwareSelector<K> {
	
	private final K key;
	
	public MapValueByKeySelector(K key) {
		this.key = key;
	}

	@Override
	@SuppressWarnings("unchecked")
	public boolean equals(final Object o) {
		if (this == o) {
			return true;
		}
		if (o instanceof MapValueByKeySelector) {
			MapValueByKeySelector<?> other = (MapValueByKeySelector<?>)o;
			return Objects.equal(key, (K) other.key);
		}

		return false;
	}

	@Override
	public int hashCode() {
		return new HashCodeBuilder()
				.append(key)
				.build();
	}

	@Override
	public String toHumanReadableString() {
		return Strings.toSingleLineString(key);
	}
	
	@Override
	public K getKey() {
		return key;
	}

}