net.sf.jasperreports.engine.data
Class JRHibernateAbstractDataSource

java.lang.Object
  net.sf.jasperreports.engine.data.JRHibernateAbstractDataSource

All Implemented Interfaces:

JRDataSource

Direct Known Subclasses:

JRHibernateIterateDataSource, JRHibernateListDataSource, JRHibernateScrollDataSource

public abstract class JRHibernateAbstractDataSource
extends java.lang.Object
implements JRDataSource

Base abstract Hibernate data source.

Version:

$Id: JRHibernateAbstractDataSource.java 5180 2012-03-29 13:23:12Z teodord $

Author:

Lucian Chirita (lucianc@users.sourceforge.net)

Nested Class Summary

protected static interface	JRHibernateAbstractDataSource.FieldReader Interface used to get the value of a report field from a result row.
protected static class	JRHibernateAbstractDataSource.IdentityFieldReader
protected static class	JRHibernateAbstractDataSource.IndexFieldReader
protected static class	JRHibernateAbstractDataSource.IndexPropertyFieldReader
protected static class	JRHibernateAbstractDataSource.PropertyFieldReader

Field Summary

protected JRHibernateQueryExecuter

queryExecuter

Constructor Summary

protected

JRHibernateAbstractDataSource(JRHibernateQueryExecuter queryExecuter, boolean useFieldDescription, boolean useIndexOnSingleReturn) Creates a Hibernate data source.

Method Summary

protected java.util.Map<java.lang.String,JRHibernateAbstractDataSource.FieldReader>	assignReaders(boolean useIndexOnSingleReturn) Assigns field readers to report fields.
protected java.lang.String	getFieldMapping(JRField field)
protected JRHibernateAbstractDataSource.FieldReader	getFieldReader(org.hibernate.type.Type[] returnTypes, java.util.Map<java.lang.String,java.lang.Integer> aliasesMap, JRField field)
protected JRHibernateAbstractDataSource.FieldReader	getFieldReaderSingleReturn(java.util.Map<java.lang.String,java.lang.Integer> aliasesMap, JRField field, boolean useIndex)
java.lang.Object	getFieldValue(JRField jrField) Gets the field value for the current position.
protected void	setCurrentRowValue(java.lang.Object currentReturnValue) Sets the current row of the query result.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface net.sf.jasperreports.engine.JRDataSource

next

Field Detail

queryExecuter

protected final JRHibernateQueryExecuter queryExecuter

Constructor Detail

JRHibernateAbstractDataSource

protected JRHibernateAbstractDataSource(JRHibernateQueryExecuter queryExecuter,
                                        boolean useFieldDescription,
                                        boolean useIndexOnSingleReturn)

Creates a Hibernate data source.

Parameters:

queryExecuter - the query executer

useFieldDescription - whether to use field descriptions for fields to results mapping

useIndexOnSingleReturn - whether to use indexed addressing even when the query has only one return column

Method Detail

assignReaders

protected java.util.Map<java.lang.String,JRHibernateAbstractDataSource.FieldReader> assignReaders(boolean useIndexOnSingleReturn)

Assigns field readers to report fields.

Parameters:

useIndexOnSingleReturn - whether to use indexed addressing even when the query has only one return column

Returns:

a report field name to field reader mapping

See Also:

JRHibernateAbstractDataSource.FieldReader

getFieldReaderSingleReturn

protected JRHibernateAbstractDataSource.FieldReader getFieldReaderSingleReturn(java.util.Map<java.lang.String,java.lang.Integer> aliasesMap,
                                                                               JRField field,
                                                                               boolean useIndex)

getFieldReader

protected JRHibernateAbstractDataSource.FieldReader getFieldReader(org.hibernate.type.Type[] returnTypes,
                                                                   java.util.Map<java.lang.String,java.lang.Integer> aliasesMap,
                                                                   JRField field)

setCurrentRowValue

protected void setCurrentRowValue(java.lang.Object currentReturnValue)

Sets the current row of the query result.

Parameters:

currentReturnValue - the current row value

getFieldValue

public java.lang.Object getFieldValue(JRField jrField)
                               throws JRException

Description copied from interface: JRDataSource

Gets the field value for the current position.

Specified by:

getFieldValue in interface JRDataSource

Returns:

an object containing the field value. The object type must be the field object type.

Throws:

JRException

getFieldMapping

protected java.lang.String getFieldMapping(JRField field)