/*
 * Copyright 2010-2013 the original author or authors.
 *
 * 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.springframework.data.gemfire.client;

import org.springframework.util.Assert;

/**
 * Cache interest based on regular expression rather then individual key types. 
 * 
 * @author Costin Leau
 */
public class RegexInterest extends Interest<String> {

	@Override
	public void afterPropertiesSet() {
		super.afterPropertiesSet();
		Assert.hasText(getKey(), "A non-empty regex is required");
	}

	/**
	 * Returns the regex backing this interest.
	 * Similar to {@link #getKey()}.
	 * 
	 * @return interest regex
	 */
	//TODO: is this really required
	public String getRegex() {
		return getKey();
	}
}
