org.batoo.jpa.core.impl.criteria.expression

Class ParameterExpressionImpl<T>

java.lang.Object

org.batoo.jpa.core.impl.criteria.TupleElementImpl<X>

org.batoo.jpa.core.impl.criteria.AbstractSelection<T>

org.batoo.jpa.core.impl.criteria.expression.AbstractExpression<T>

org.batoo.jpa.core.impl.criteria.expression.ParameterExpressionImpl<T>

Type Parameters:

T - the type of the parameter expression

All Implemented Interfaces:

Expression<T>, ParameterExpression<T>, Selection<T>, Parameter<T>, TupleElement<T>

public class ParameterExpressionImpl<T>
extends AbstractExpression<T>
implements ParameterExpression<T>

Type of criteria query parameter expressions.

Since:

$version

Author:

hceylan

Constructor Summary

Constructors

Constructor and Description
ParameterExpressionImpl(TypeImpl<T> type, Class<T> paramClass, String name)

Method Summary

Methods

Modifier and Type	Method and Description
protected void	ensureAlias(BaseQueryImpl<?> query) Ensures the alias has been created.
String	generateJpqlRestriction(BaseQueryImpl<?> query) Returns the JPQL where fragment.
String	generateJpqlSelect(AbstractCriteriaQueryImpl<?> query, boolean selected) Returns the JPQL select fragment.
String	generateSqlSelect(AbstractCriteriaQueryImpl<?> query, boolean selected) Returns the SQL select fragment.
int	getExpandedCount(MetamodelImpl metamodelImpl) Returns the number of SQL parameters when expanded.
String	getName()
Class<T>	getParameterType()
Integer	getPosition()
String[]	getSqlRestrictionFragments(BaseQueryImpl<?> query) Returns the SQL restriction fragments.
T	handle(QueryImpl<?> query, SessionImpl session, ResultSet row) Handles the row.
void	setParameter(MetamodelImpl metamodel, Object[] parameters, org.apache.commons.lang.mutable.MutableInt sqlIndex, Object value) Sets the parameters expanding if necessary.

Methods inherited from class org.batoo.jpa.core.impl.criteria.expression.AbstractExpression

as, getConverter, in, in, in, in, isNotNull, isNull, setConverter

Methods inherited from class org.batoo.jpa.core.impl.criteria.AbstractSelection

alias, getAlias, getCompoundSelectionItems, isCompoundSelection, isEntityList

Methods inherited from class org.batoo.jpa.core.impl.criteria.TupleElementImpl

getJavaType

Methods inherited from class java.lang.Object

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

Methods inherited from interface javax.persistence.criteria.Expression

as, in, in, in, in, isNotNull, isNull

Methods inherited from interface javax.persistence.criteria.Selection

alias, getCompoundSelectionItems, isCompoundSelection

Methods inherited from interface javax.persistence.TupleElement

getAlias, getJavaType

Constructor Detail

ParameterExpressionImpl

public ParameterExpressionImpl(TypeImpl<T> type,
                       Class<T> paramClass,
                       String name)

Parameters:

type - the persistent type of the parameter

paramClass - the class of the parameter

name - the name of the parameter

Since:

$version

Method Detail

ensureAlias

protected void ensureAlias(BaseQueryImpl<?> query)

Ensures the alias has been created.

Parameters:

query - the query

Since:

$version

generateJpqlRestriction

public String generateJpqlRestriction(BaseQueryImpl<?> query)

Returns the JPQL where fragment.

Specified by:

generateJpqlRestriction in class AbstractExpression<T>

Parameters:

query - the query

Returns:

the JPQL where fragment

generateJpqlSelect

public String generateJpqlSelect(AbstractCriteriaQueryImpl<?> query,
                        boolean selected)

Returns the JPQL select fragment.

Specified by:

generateJpqlSelect in class AbstractSelection<T>

Parameters:

query - the criteria query

selected - if the selection is selected

Returns:

the JPQL select fragment

generateSqlSelect

public String generateSqlSelect(AbstractCriteriaQueryImpl<?> query,
                       boolean selected)

Returns the SQL select fragment.

Specified by:

generateSqlSelect in class AbstractSelection<T>

Parameters:

query - the query

selected - if the selection is selected

Returns:

the SQL select fragment

getExpandedCount

public int getExpandedCount(MetamodelImpl metamodelImpl)

Returns the number of SQL parameters when expanded.

Parameters:

metamodelImpl - the metamodel

Returns:

the number of SQL parameters when expanded

Since:

$version

getName

public String getName()

Specified by:

getName in interface Parameter<T>

getParameterType

public Class<T> getParameterType()

Specified by:

getParameterType in interface Parameter<T>

getPosition

public Integer getPosition()

Specified by:

getPosition in interface Parameter<T>

getSqlRestrictionFragments

public String[] getSqlRestrictionFragments(BaseQueryImpl<?> query)

Returns the SQL restriction fragments.

Specified by:

getSqlRestrictionFragments in class AbstractSelection<T>

Parameters:

query - the query

Returns:

the SQL restriction fragments

handle

public T handle(QueryImpl<?> query,
       SessionImpl session,
       ResultSet row)
         throws SQLException

Handles the row.

Specified by:

handle in class AbstractSelection<T>

Parameters:

query - the query

session - the session

row - the row

Returns:

the managed instance

Throws:

SQLException - thrown in case of an underlying SQL Error

setParameter

public void setParameter(MetamodelImpl metamodel,
                Object[] parameters,
                org.apache.commons.lang.mutable.MutableInt sqlIndex,
                Object value)

Sets the parameters expanding if necessary.

Parameters:

metamodel - the metamodel

parameters - the SQL parameters

sqlIndex - the index corresponding to expanded SQL parameter

value - the value to set to the parameter

Since:

$version