JRAbstractScriptlet.java
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net.sf.jasperreports.engine |
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JasperReports |
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/*
* ============================================================================
* GNU Lesser General Public License
* ============================================================================
*
* JasperReports - Free Java report-generating library.
* Copyright (C) 2001-2006 JasperSoft Corporation http://www.jaspersoft.com
*
* This library 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 2.1 of the License, or (at your option) any later version.
*
* This library 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 this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
*
* JasperSoft Corporation
* 303 Second Street, Suite 450 North
* San Francisco, CA 94107
* http://www.jaspersoft.com
*/
package net.sf.jasperreports.engine;
import java.util.Map;
import net.sf.jasperreports.engine.fill.JRFillField;
import net.sf.jasperreports.engine.fill.JRFillGroup;
import net.sf.jasperreports.engine.fill.JRFillParameter;
import net.sf.jasperreports.engine.fill.JRFillVariable;
/**
* Defines an abstract representation of a report scriptlet. Scriptlets are useful when a specific behaviour is needed
* in certain moments of the report filling process, such as report, column or group initialization. Scriptlets must implement
* the abstract methods that define the behaviour at the specified moments.
* @author Teodor Danciu (teodord@users.sourceforge.net)
* @version $Id: JRAbstractScriptlet.java 1229 2006-04-19 10:27:35Z teodord $
*/
public abstract class JRAbstractScriptlet
{
/**
*
*/
protected Map parametersMap = null;
protected Map fieldsMap = null;
protected Map variablesMap = null;
protected JRFillGroup[] groups = null;
/**
*
*/
public JRAbstractScriptlet()
{
}
/**
*
*/
public void setData(
Map parsm,
Map fldsm,
Map varsm,
JRFillGroup[] grps
)
{
parametersMap = parsm;
fieldsMap = fldsm;
variablesMap = varsm;
groups = grps;
}
/**
*
*/
public Object getParameterValue(String parameterName) throws JRScriptletException
{
JRFillParameter parameter = (JRFillParameter)this.parametersMap.get(parameterName);
if (parameter == null)
{
throw new JRScriptletException("Parameter not found : " + parameterName);
}
return parameter.getValue();
}
/**
*
*/
public Object getFieldValue(String fieldName) throws JRScriptletException
{
JRFillField field = (JRFillField)this.fieldsMap.get(fieldName);
if (field == null)
{
throw new JRScriptletException("Field not found : " + fieldName);
}
return field.getValue();
}
/**
*
*/
public Object getVariableValue(String variableName) throws JRScriptletException
{
JRFillVariable variable = (JRFillVariable)this.variablesMap.get(variableName);
if (variable == null)
{
throw new JRScriptletException("Variable not found : " + variableName);
}
return variable.getValue();
}
/**
*
*/
public void setVariableValue(String variableName, Object value) throws JRScriptletException
{
JRFillVariable variable = (JRFillVariable)this.variablesMap.get(variableName);
if (variable == null)
{
throw new JRScriptletException("Variable not found : " + variableName);
}
if (value != null && !variable.getValueClass().isInstance(value) )
{
throw new JRScriptletException("Incompatible value assigned to variable " + variableName + ". Expected " + variable.getValueClassName() + ".");
}
variable.setValue(value);
}
/**
*
*/
public void callBeforeReportInit() throws JRScriptletException
{
this.beforeReportInit();
this.beforePageInit();
this.beforeColumnInit();
if(groups != null && groups.length > 0)
{
for(int i = 0; i < groups.length; i++)
{
this.beforeGroupInit( groups[i].getName() );
}
}
}
/**
*
*/
public void callAfterReportInit() throws JRScriptletException
{
if(groups != null && groups.length > 0)
{
for(int i = groups.length - 1; i >= 0; i--)
{
this.afterGroupInit( groups[i].getName() );
}
}
this.afterColumnInit();
this.afterPageInit();
this.afterReportInit();
}
/**
*
*/
public void callBeforePageInit() throws JRScriptletException
{
this.beforePageInit();
this.beforeColumnInit();
}
/**
*
*/
public void callAfterPageInit() throws JRScriptletException
{
this.afterColumnInit();
this.afterPageInit();
}
/**
*
*/
public void callBeforeColumnInit() throws JRScriptletException
{
this.beforeColumnInit();
}
/**
*
*/
public void callAfterColumnInit() throws JRScriptletException
{
this.afterColumnInit();
}
/**
*
*/
public void callBeforeGroupInit() throws JRScriptletException
{
if(groups != null && groups.length > 0)
{
JRFillGroup group = null;
for(int i = 0; i < groups.length; i++)
{
group = groups[i];
if (group.hasChanged())
{
this.beforeGroupInit(group.getName());
}
}
}
}
/**
*
*/
public void callAfterGroupInit() throws JRScriptletException
{
if(groups != null && groups.length > 0)
{
JRFillGroup group = null;
for(int i = groups.length - 1; i >= 0; i--)
{
group = groups[i];
if (group.hasChanged())
{
this.afterGroupInit(group.getName());
}
}
}
}
/**
*
*/
public void callBeforeDetailEval() throws JRScriptletException
{
this.beforeDetailEval();
}
/**
*
*/
public void callAfterDetailEval() throws JRScriptletException
{
this.afterDetailEval();
}
/**
* Called before the report is initialized.
*/
public abstract void beforeReportInit() throws JRScriptletException;
/**
* Called after the report is initialized.
*/
public abstract void afterReportInit() throws JRScriptletException;
/**
* Called before each page is initialized.
*/
public abstract void beforePageInit() throws JRScriptletException;
/**
* Called after each page is initialized.
*/
public abstract void afterPageInit() throws JRScriptletException;
/**
* Called before each column is initialized.
*/
public abstract void beforeColumnInit() throws JRScriptletException;
/**
* Called after each column is initialized.
*/
public abstract void afterColumnInit() throws JRScriptletException;
/**
* Called before a group is initialized.
* @param groupName the group name
*/
public abstract void beforeGroupInit(String groupName) throws JRScriptletException;
/**
* Called after a group is initialized.
* @param groupName the group name
*/
public abstract void afterGroupInit(String groupName) throws JRScriptletException;
/**
* Called before evaluating each detail.
*/
public abstract void beforeDetailEval() throws JRScriptletException;
/**
* Called after evaluating each detail.
*/
public abstract void afterDetailEval() throws JRScriptletException;
}
The table below shows all metrics for JRAbstractScriptlet.java.




