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/*
 * Copyright (c) 2010-2015 Pivotal Software, Inc. All rights reserved.
 *
 * 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. See accompanying
 * LICENSE file.
 */
package com.gemstone.gemfire.internal.cache.tier;

/**
 * Pre-defined interest list types supported by the system
 *
 * @author Sudhir Menon
 * @version $Revision: 13166 $
 * @since 2.0.2
 */
public class InterestType {

  /** For registering interest in a specific key or list of keys */
  public static final int KEY = 0;

  /** For registering interest in all keys matching a regular expression */
  public static final int REGULAR_EXPRESSION = 1;

  /** For registering interest in all key/value pairs that satisfy a provided filtering class */
  public static final int FILTER_CLASS = 2;

  /** For registering interest in all key/value pairs that satisfy an OQL query */
  public static final int OQL_QUERY = 3;

  /** For registering CQs */
  public static final int CQ = 4;

  /**
   * Convert an interest type to a printable string
   * @param kind the type to convert
   * @return a printable string
   */
  static public String getString(int kind) {
    switch (kind) {
    case KEY:
      return "KEY";
    case REGULAR_EXPRESSION:
      return "REGEX";
    case FILTER_CLASS:
      return "FILTER";
    case OQL_QUERY:
      return "OQL_QUERY";
    case CQ:
      return "CQ";
    default:
      return "Invalid(" + Integer.toString(kind) + ")";
    }
  }
}