Location.java

/**
 * (C) Copyright IBM Corp. 2010, 2015
 *
 * 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 com.ibm.bi.dml.api.monitoring;

public class Location implements Comparable<Location> {
	public int beginLine;
	public int endLine;
	public int beginCol;
	public int endCol;
	public Location(int beginLine, int endLine, int beginCol, int endCol) {
		this.beginLine = beginLine;
		this.endLine = endLine;
		this.beginCol = beginCol;
		this.endCol = endCol;
	}
	
	@Override
	public boolean equals(Object other) {
		if(other instanceof Location) {
			Location loc = (Location) other;
			if(loc.beginLine == beginLine && loc.endLine == endLine && loc.beginCol == beginCol && loc.endCol == endCol) {
				return true;
			}
			else
				return false;
		}
		return false;
	}
	
	private int compare(int v1, int v2) {
		return new Integer(v1).compareTo(new Integer(v2));
	}
	
	public String toString() {
		return beginLine + ":" + beginCol + ", " + endLine + ":" + endCol;
	}

	@Override
	public int compareTo(Location loc) {
		if(loc.beginLine == beginLine && loc.endLine == endLine && loc.beginCol == beginCol && loc.endCol == endCol)
			return 0;
		
		int retVal = compare(beginLine, loc.beginLine);
		if(retVal != 0) { 
			return retVal;
		}
		else { 
			retVal = compare(beginCol, loc.beginCol);
			if(retVal != 0) { 
				return retVal;
			}
			else { 
				retVal = compare(endLine, loc.endLine);
				if(retVal != 0) { 
					return retVal;
				}
				else {
					return compare(endCol, loc.endCol);
				}
			}
		}
	}
}