Package net.sf.jasperreports.j2ee.hibernate

Class JRHibernateAbstractDataSource

java.lang.Object

net.sf.jasperreports.j2ee.hibernate.JRHibernateAbstractDataSource

All Implemented Interfaces:

JRDataSource

Direct Known Subclasses:

JRHibernateIterateDataSource, JRHibernateListDataSource, JRHibernateScrollDataSource

public abstract class JRHibernateAbstractDataSource
extends Object
implements JRDataSource

Base abstract Hibernate data source.

Author:

Lucian Chirita (lucianc@users.sourceforge.net)

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
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

Fields

Modifier and Type	Field	Description
static String	EXCEPTION_MESSAGE_KEY_FIELD_ALIAS_TYPE_MISMATCH
static String	EXCEPTION_MESSAGE_KEY_MANY_FIELDS_DETECTED
static String	EXCEPTION_MESSAGE_KEY_NO_FIELD_ALIAS
static String	EXCEPTION_MESSAGE_KEY_NO_FIELD_READER
static String	EXCEPTION_MESSAGE_KEY_UNKNOWN_RETURN_ALIAS
protected JRHibernateQueryExecuter	queryExecuter

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	JRHibernateAbstractDataSource(JRHibernateQueryExecuter queryExecuter, boolean useFieldDescription, boolean useIndexOnSingleReturn)	Creates a Hibernate data source.

Method Summary

Modifier and Type	Method	Description
protected Map<String,JRHibernateAbstractDataSource.FieldReader>	assignReaders(boolean useIndexOnSingleReturn)	Assigns field readers to report fields.
protected String	getFieldMapping(JRField field)
protected JRHibernateAbstractDataSource.FieldReader	getFieldReader(org.hibernate.type.Type[] returnTypes, Map<String,Integer> aliasesMap, JRField field)
protected JRHibernateAbstractDataSource.FieldReader	getFieldReaderSingleReturn(Map<String,Integer> aliasesMap, JRField field, boolean useIndex)
Object	getFieldValue(JRField jrField)	Gets the field value for the current position.
protected void	setCurrentRowValue(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

EXCEPTION_MESSAGE_KEY_FIELD_ALIAS_TYPE_MISMATCH

public static final String EXCEPTION_MESSAGE_KEY_FIELD_ALIAS_TYPE_MISMATCH

See Also:

Constant Field Values

EXCEPTION_MESSAGE_KEY_MANY_FIELDS_DETECTED

public static final String EXCEPTION_MESSAGE_KEY_MANY_FIELDS_DETECTED

See Also:

Constant Field Values

EXCEPTION_MESSAGE_KEY_NO_FIELD_ALIAS

public static final String EXCEPTION_MESSAGE_KEY_NO_FIELD_ALIAS

See Also:

Constant Field Values

EXCEPTION_MESSAGE_KEY_NO_FIELD_READER

public static final String EXCEPTION_MESSAGE_KEY_NO_FIELD_READER

See Also:

Constant Field Values

EXCEPTION_MESSAGE_KEY_UNKNOWN_RETURN_ALIAS

public static final String EXCEPTION_MESSAGE_KEY_UNKNOWN_RETURN_ALIAS

See Also:

Constant Field Values

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 Map<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(Map<String,Integer> aliasesMap,
                                                                               JRField field,
                                                                               boolean useIndex)

getFieldReader

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

setCurrentRowValue

protected void setCurrentRowValue(Object currentReturnValue)

Sets the current row of the query result.

Parameters:

currentReturnValue - the current row value

getFieldValue

public 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 String getFieldMapping(JRField field)