content: /**
   * 	Copyright (c) 2010 Philipp Giese
   * 
   * Permission is hereby granted, free of charge, to any person obtaining
   * a copy of this software and associated documentation files (the
   * "Software"), to deal in the Software without restriction, including
   * without limitation the rights to use, copy, modify, merge, publish,
   * distribute, sublicense, and/or sell copies of the Software, and to
   * permit persons to whom the Software is furnished to do so, subject to
   * the following conditions:
   * 
   * The above copyright notice and this permission notice shall be
   * included in all copies or substantial portions of the Software.
   * 
   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
   * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
   * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
   * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
   * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
   * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
   * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
   */
  package com.orm.androrm;
  
  /**
   * Class representing the LIMIT statement of the database.
   * 
   * @author Philipp Giese
   */
  public class Limit {
  	/**
  	 * Start offset.
  	 */
  	private int mOffset;
  	/**
  	 * Number of items to fetch.
  	 */
  	private int mLimit;
  	
  	public Limit() {
  		mLimit = 0;
  		mOffset = 0;
  	}
  	
  	public Limit(int limit) {
  		mLimit = limit;
  		mOffset = 0;
  	}
  	
  	public Limit(int offset, int limit) {
  		mOffset = offset;
  		mLimit = limit;
  	}
  	
  	/**
  	 * The computed limit is the offset plus the number of items, that
  	 * shall be fetched. These numbers are handed to the database.
  	 * 
  	 * @return The computed limit for the query.
  	 */
  	public int getComputedLimit() {
  		return mOffset + mLimit;
  	}
  	
  	/**
  	 * @return The offset to start.
  	 */
  	public int getOffset() {
  		return mOffset;
  	}
  	
  	/**
  	 * The raw limit is simply the count of objects that shall be fetched.
  	 * 
  	 * @return The raw limit.
  	 */
  	public int getRawLimit() {
  		return mLimit;
  	}
  	
  	@Override
  	public String toString() {
  		if(mLimit != 0) {
  		
  			if(mOffset == 0) {
  				return " LIMIT " + String.valueOf(mLimit);
  			}
  			
  			return " LIMIT " + mOffset + " , " + (mOffset + mLimit);
  		}
  		
  		return null;
  	}
  }
  