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Free Java Reporting Library
/*
* JasperReports - Free Java Reporting Library.
* Copyright (C) 2001 - 2023 Cloud Software Group, Inc. All rights reserved.
* http://www.jaspersoft.com
*
* Unless you have purchased a commercial license agreement from Jaspersoft,
* the following license terms apply:
*
* This program is part of JasperReports.
*
* JasperReports is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* JasperReports is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with JasperReports. If not, see .
*/
package net.sf.jasperreports.engine.query;
/**
* SQL "IN" clause function.
*
* @author Lucian Chirita ([email protected])
* @see #apply(JRClauseTokens, JRQueryClauseContext)
*/
public class JRSqlInClause extends JRSqlAbstractInClause
{
protected static final String OPERATOR_IN = "IN";
protected static final String OPERATOR_NULL = "IS NULL";
protected static final String OPERATOR_AND_OR = " OR ";
protected static final JRSqlInClause singleton = new JRSqlInClause();
/**
* Returns the singleton function instance.
*
* @return the singleton function instance
*/
public static JRSqlInClause instance()
{
return singleton;
}
@Override
protected void appendInOperator(StringBuffer sBuffer)
{
sBuffer.append(OPERATOR_IN);
}
@Override
protected void appendNullOperator(StringBuffer sBuffer)
{
sBuffer.append(OPERATOR_NULL);
}
@Override
protected void appendAndOrOperator(StringBuffer sBuffer)
{
sBuffer.append(OPERATOR_AND_OR);
}
}