001/*
002 * (C) Copyright 2006-2011 Nuxeo SA (http://nuxeo.com/) and others.
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 *     http://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 *
016 * Contributors:
017 *     Nuxeo - initial API and implementation
018 *
019 * $Id$
020 */
021
022package org.nuxeo.ecm.core.query.sql.model;
023
024/**
025 * @author <a href="mailto:bs@nuxeo.com">Bogdan Stefanescu</a>
026 */
027public class StringLiteral extends Literal {
028
029    private static final long serialVersionUID = -7576440083973254527L;
030
031    public final String value;
032
033    public StringLiteral(String value) {
034        this.value = value;
035    }
036
037    @Override
038    public void accept(IVisitor visitor) {
039        visitor.visitStringLiteral(this);
040    }
041
042    @Override
043    public String asString() {
044        return value;
045    }
046
047    @Override
048    public String toString() {
049        return new StringBuffer(value.length() + 2).append("\'").append(value).append("\'").toString();
050    }
051
052    @Override
053    public boolean equals(Object obj) {
054        if (obj == this) {
055            return true;
056        }
057        if (obj instanceof StringLiteral) {
058            return value.contentEquals(((StringLiteral) obj).value);
059        }
060        return false;
061    }
062
063    @Override
064    public int hashCode() {
065        return value.hashCode();
066    }
067
068}