Copyright 2015 Red Hat, Inc.

All rights reserved. This program and the accompanying materials
are made available under the terms of the Eclipse Public License v1.0
and Apache License v2.0 which accompanies this distribution.

The Eclipse Public License is available at
http://www.eclipse.org/legal/epl-v10.html

The Apache License v2.0 is available at
http://www.opensource.org/licenses/apache2.0.php

You may elect to redistribute this code under either of these licenses.
/**
 * Copyright 2015 Red Hat, Inc.
 * <p>
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * and Apache License v2.0 which accompanies this distribution.
 * <p>
 * The Eclipse Public License is available at
 * http://www.eclipse.org/legal/epl-v10.html
 * <p>
 * The Apache License v2.0 is available at
 * http://www.opensource.org/licenses/apache2.0.php
 * <p>
 * You may elect to redistribute this code under either of these licenses.
 */
package io.vertx.redis.op;

import io.vertx.codegen.annotations.DataObject;
import io.vertx.core.json.JsonArray;
import io.vertx.core.json.JsonObject;

Author:
Marko Strukelj/**
 * @author <a href="mailto:marko.strukelj@gmail.com">Marko Strukelj</a>
 */
@DataObject
public class LimitOptions {

  public static final LimitOptions NONE = new LimitOptions();

  private Long offset;
  private Long count;

  public LimitOptions() {
  }

  public LimitOptions(LimitOptions obj) {
    offset = obj.offset;
    count = obj.count;
  }

  public LimitOptions(JsonObject obj) {
    offset = obj.getLong("offset");
    count = obj.getLong("count");
  }

  public LimitOptions setLimit(long offset, long count) {
    this.offset = offset;
    this.count = count;
    return this;
  }

  public LimitOptions setOffset(Long offset) {
    this.offset = offset;
    return this;
  }

  public LimitOptions setCount(Long count) {
    this.count = count;
    return this;
  }

  public JsonObject toJson() {
    JsonObject result = new JsonObject();
    if (offset != null) {
      result.put("offset", offset);
      result.put("count", count);
    }
    return result;
  }

  public JsonArray toJsonArray() {
    JsonArray result = new JsonArray();
    if (offset != null) {
      result.add("LIMIT");
      result.add(offset);
      result.add(count);
    }
    return result;
  }
}