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/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.apache.hyracks.dataflow.std.structures;

public interface IHeap {
    /**
     * Inserts a new element into the selectionTree
     *
     * @param element to be inserted
     */
    void insert(T element);

    /**
     * @return True of the selection tree does not have any element, false
     * otherwise
     */
    boolean isEmpty();

    /**
     * Removes all the elements in the tree
     */
    void reset();

    /**
     * Return the number of the inserted tuples
     *
     * @return
     */
    int getNumEntries();

}