com.opensymphony.webwork.views.jasperreports
Class OgnlValueStackDataSource
java.lang.Object
 com.opensymphony.webwork.views.jasperreports.OgnlValueStackDataSource
- All Implemented Interfaces:
- net.sf.jasperreports.engine.JRDataSource
public class OgnlValueStackDataSource - extends Object
- implements net.sf.jasperreports.engine.JRDataSource
Ported to WebWork2.
- Version:
- $Id: OgnlValueStackDataSource.java,v 1.7 2005/10/09 04:26:34 plightbo Exp $
- Author:
- <a href="hermanns@aixcept.de">Rainer Hermanns</a>
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Method Summary |
Object |
getFieldValue(net.sf.jasperreports.engine.JRField field)
Get the value of a given field |
boolean |
next()
Is there any more data |
| Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
OgnlValueStackDataSource
public OgnlValueStackDataSource(OgnlValueStack valueStack,
String dataSource)
- Create a value stack data source on the given iterable property
- Parameters:
valueStack - The value stack to base the data source ondataSource - The property to iterate over for the report
getFieldValue
public Object getFieldValue(net.sf.jasperreports.engine.JRField field)
throws net.sf.jasperreports.engine.JRException
- Get the value of a given field
- Specified by:
getFieldValue in interface net.sf.jasperreports.engine.JRDataSource
- Parameters:
field - The field to get the value for. The expression language to get the value
of the field is either taken from the description property or from the name of the field
if the description is null.
- Returns:
- an
Object containing the field value or a new
OgnlValueStackDataSource object if the field value evaluates to
an object that can be iterated over.
- Throws:
net.sf.jasperreports.engine.JRException - if there is a problem obtaining the value
next
public boolean next()
throws net.sf.jasperreports.engine.JRException
- Is there any more data
- Specified by:
next in interface net.sf.jasperreports.engine.JRDataSource
- Returns:
true if there are more elements to iterate over and
false otherwise
- Throws:
net.sf.jasperreports.engine.JRException - if there is a problem determining whether there
is more data
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