objectmethodcall.java

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/**
 * 
 */
package quickstart.cache;

import java.lang.reflect.Method;
import java.util.Arrays;

/**
 * @author tamdv
 * 
 */
public class ObjectMethodCall {
	private int hashCode = 0;

	final Object target;
	final Method method;
	final Object[] args;

	public ObjectMethodCall(final Object target, final Method method,
			final Object[] args) {
		this.target = target;
		this.method = method;
		this.args = args;
	}

	@Override
	public int hashCode() {
		if (hashCode == 0) {
			hashCode = 7 + target.hashCode();
			hashCode = 31 * hashCode + method.hashCode();
			hashCode = 31 * hashCode + Arrays.hashCode(args);
			if (hashCode == 0) {
				hashCode = 1;
			}
		}
		return hashCode;
	}

	@Override
	public boolean equals(Object object) {
		if (!(object instanceof ObjectMethodCall)) {
			return false;
		}
		final ObjectMethodCall methodCall = (ObjectMethodCall) object;
		if ((!methodCall.target.equals(target))
				|| (!methodCall.method.equals(method))) {
			return false;
		}
		return Arrays.equals(methodCall.args, args);
	}
}