net.sf.jasperreports.components.sort.AbstractFieldComparator Maven / Gradle / Ivy
/*
* JasperReports - Free Java Reporting Library.
* Copyright (C) 2001 - 2019 TIBCO Software 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.components.sort;
import java.text.Format;
import net.sf.jasperreports.engine.JRRuntimeException;
import net.sf.jasperreports.engine.util.DefaultFormatFactory;
import net.sf.jasperreports.engine.util.FormatFactory;
/**
* @author Narcis Marcu ([email protected])
*/
public abstract class AbstractFieldComparator {
protected String valueStart;
protected String valueEnd;
protected T compareStart;
protected T compareEnd;
protected T compareTo;
protected Class compareToClass;
protected Format formatter;
private static FormatFactory formatFactory;
static {
formatFactory = new DefaultFormatFactory();
}
@SuppressWarnings("unchecked")
public void setCompareTo(Object compareTo) {
this.compareTo = (T) compareTo;
}
public void setValueStart(String valueStart) {
this.valueStart = valueStart;
}
public void setValueEnd(String valueEnd) {
this.valueEnd = valueEnd;
}
public void setCompareToClass(Class compareToClass) {
this.compareToClass = compareToClass;
}
public abstract boolean compare(String filterTypeOperator);
public abstract void initValues() throws Exception;
protected FormatFactory getFormatFactory() {
return formatFactory;
}
public boolean isValid() {
try {
initValues();
} catch (Exception e) {
throw new JRRuntimeException(e);
}
return true;
}
}