net.sf.jasperreports.engine.query
Class JRXPathQueryExecuter
java.lang.Object
net.sf.jasperreports.engine.query.JRAbstractQueryExecuter
net.sf.jasperreports.engine.query.JRXPathQueryExecuter
- All Implemented Interfaces:
- JRQueryExecuter
public class JRXPathQueryExecuter
- extends JRAbstractQueryExecuter
XPath query executer implementation.
The XPath query of the report is executed against the document specified by the
PARAMETER_XML_DATA_DOCUMENT
parameter.
All the paramters in the XPath query are replaced by calling String.valueOf(Object)
on the parameter value.
- Version:
- $Id: JRXPathQueryExecuter.java 1538 2006-12-22 17:04:25 +0200 (Fri, 22 Dec 2006) teodord $
- Author:
- Lucian Chirita (lucianc@users.sourceforge.net)
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
JRXPathQueryExecuter
public JRXPathQueryExecuter(JRDataset dataset,
java.util.Map parametersMap)
getParameterReplacement
protected java.lang.String getParameterReplacement(java.lang.String parameterName)
- Description copied from class:
JRAbstractQueryExecuter
- Returns the replacement text for a query paramter.
- Specified by:
getParameterReplacement
in class JRAbstractQueryExecuter
- Parameters:
parameterName
- the paramter name
- Returns:
- the replacement text
- See Also:
JRQueryChunk.TYPE_PARAMETER
createDatasource
public JRDataSource createDatasource()
throws JRException
- Description copied from interface:
JRQueryExecuter
- Executes the query and creates a
JRDataSource
out of the result.
- Returns:
- a
JRDataSource
wrapping the query execution result.
- Throws:
JRException
close
public void close()
- Description copied from interface:
JRQueryExecuter
- Closes resources kept open during the data source iteration.
This method is called after the report is filled or the dataset is iterated.
If a resource is not needed after the data source has been created, it should be
released at the end of
createDatasource
.
cancelQuery
public boolean cancelQuery()
throws JRException
- Description copied from interface:
JRQueryExecuter
- Cancels the query if it's currently running.
This method will be called from a different thread if the client decides to
cancel the filling process.
- Returns:
true
iff the query was running and it has been cancelled
- Throws:
JRException
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