JsonArray.java

/*
 * Copyright 2004-2009 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.compass.core.json;

/**
 * A generifc interface on top of a Json array.
 *
 * @author kimchy
 */
public interface JsonArray {

    /**
     * Return the length of the array.
     */
    int length();

    /**
     * Returns <code>true</code> if the given index is a null value.
     */
    boolean isNull(int index);

    /**
     * Returns the value for the given index.
     */
    Object opt(int index);
}