ServiceParam.java

/**
 * Dianping.com Inc.
 * Copyright (c) 2003-2013 All Rights Reserved.
 */
package com.dianping.pigeon.remoting.provider.service.method;

import org.apache.commons.lang.builder.ReflectionToStringBuilder;
import org.apache.commons.lang.builder.ToStringStyle;

public class ServiceParam {

	private String[] paramNames;

	private int hashCode = 0;

	public ServiceParam(String[] paramNames) {
		this.paramNames = paramNames;

		StringBuilder sb = new StringBuilder();
		for (String paramName : paramNames) {
			sb.append(paramName).append("@");
		}
		this.hashCode = sb.toString().hashCode();
	}

	public int getLength() {
		return this.paramNames.length;
	}

	public String[] getParamNames() {
		return this.paramNames;
	}

	public int hashCode() {
		return this.hashCode;
	}

	public boolean equals(Object obj) {
		if (this == obj) {
			return true;
		}
		if (obj instanceof ServiceParam) {
			return this.hashCode == obj.hashCode();
		}
		return false;
	}

	@Override
	public String toString() {
		return ReflectionToStringBuilder.toString(this, ToStringStyle.SHORT_PREFIX_STYLE);
	}

}