Java tutorial
// Copyright 2004 The Apache Software Foundation // // 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 org.apache.tapestry; import org.apache.commons.lang.builder.EqualsBuilder; import org.apache.commons.lang.builder.HashCodeBuilder; /** * Implementation of the {@link org.apache.tapestry.ILocation} interface. * * @author Howard Lewis Ship * @version $Id: Location.java,v 1.6 2004/02/19 17:37:36 hlship Exp $ * @since 3.0 * **/ public class Location implements ILocation { private IResourceLocation _resourceLocation; private int _lineNumber = -1; private int _columnNumber = -1; public Location(IResourceLocation location) { _resourceLocation = location; } public Location(IResourceLocation location, int lineNumber) { this(location); _lineNumber = lineNumber; } public Location(IResourceLocation location, int lineNumber, int columnNumber) { this(location); _lineNumber = lineNumber; _columnNumber = columnNumber; } public IResourceLocation getResourceLocation() { return _resourceLocation; } public int getLineNumber() { return _lineNumber; } public int getColumnNumber() { return _columnNumber; } public int hashCode() { HashCodeBuilder builder = new HashCodeBuilder(237, 53); builder.append(_resourceLocation); builder.append(_lineNumber); builder.append(_columnNumber); return builder.toHashCode(); } public boolean equals(Object other) { if (!(other instanceof ILocation)) return false; ILocation l = (ILocation) other; EqualsBuilder builder = new EqualsBuilder(); builder.append(_lineNumber, l.getLineNumber()); builder.append(_columnNumber, l.getColumnNumber()); builder.append(_resourceLocation, l.getResourceLocation()); return builder.isEquals(); } public String toString() { if (_lineNumber <= 0 && _columnNumber <= 0) return _resourceLocation.toString(); StringBuffer buffer = new StringBuffer(_resourceLocation.toString()); if (_lineNumber > 0) { buffer.append(", line "); buffer.append(_lineNumber); } if (_columnNumber > 0) { buffer.append(", column "); buffer.append(_columnNumber); } return buffer.toString(); } }