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.AbstractParameterExpressionImpl<T>

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

Type Parameters:

T - the type of the parameter expression

All Implemented Interfaces:

javax.persistence.criteria.Expression<T>, javax.persistence.criteria.ParameterExpression<T>, javax.persistence.criteria.Selection<T>, javax.persistence.Parameter<T>, javax.persistence.TupleElement<T>

public class ParameterExpressionImpl<T>
extends AbstractParameterExpressionImpl<T>
implements javax.persistence.criteria.ParameterExpression<T>

Type of criteria query parameter expressions.

Since:

2.0.0

Author:

hceylan

Constructor Summary

Constructors

Constructor and Description
ParameterExpressionImpl(BaseQueryImpl<?> q, TypeImpl<T> type, Class<T> paramClass, int position)
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 is generated.
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.
String	getName()
Class<T>	getParameterType()
Integer	getPosition()
T	handle(QueryImpl<?> query, SessionImpl session, ResultSet row) Handles the row.
void	setParameter(MetamodelImpl metamodel, Connection connections, 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.AbstractParameterExpressionImpl

ensureTypeResolved, getExpandedCount, getSqlRestrictionFragments

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(BaseQueryImpl<?> q,
                       TypeImpl<T> type,
                       Class<T> paramClass,
                       int position)

Parameters:

q - the query

type - the persistent type of the parameter

paramClass - the class of the parameter

position - the ordinal position of the parameter

Since:

2.0.0

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:

2.0.0

Method Detail

ensureAlias

protected void ensureAlias(BaseQueryImpl<?> query)

Ensures the alias is generated.

Specified by:

ensureAlias in class AbstractParameterExpressionImpl<T>

Parameters:

query - the query

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.

Overrides:

generateJpqlSelect in class AbstractParameterExpressionImpl<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.

Overrides:

generateSqlSelect in class AbstractParameterExpressionImpl<T>

Parameters:

query - the query

selected - if the selection is selected

Returns:

the SQL select fragment

getName

public String getName()

Specified by:

getName in interface javax.persistence.Parameter<T>

getParameterType

public Class<T> getParameterType()

Specified by:

getParameterType in interface javax.persistence.Parameter<T>

getPosition

public Integer getPosition()

Specified by:

getPosition in interface javax.persistence.Parameter<T>

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,
                Connection connections,
                Object[] parameters,
                org.apache.commons.lang.mutable.MutableInt sqlIndex,
                Object value)

Sets the parameters expanding if necessary.

Overrides:

setParameter in class AbstractParameterExpressionImpl<T>

Parameters:

metamodel - the metamodel

connections - the connection

parameters - the SQL parameters

sqlIndex - the index corresponding to expanded SQL parameter

value - the value to set to the parameter