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

Class AbstractParameterExpressionImpl<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>

Type Parameters:

T - the type of the parameter expression

All Implemented Interfaces:

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

Direct Known Subclasses:

EntityConstantExpression, ParameterExpressionImpl

public abstract class AbstractParameterExpressionImpl<T>
extends AbstractExpression<T>

Type of criteria query parameter expressions.

Since:

2.0.0

Author:

hceylan

Constructor Summary

Constructors

Constructor and Description
AbstractParameterExpressionImpl(TypeImpl<T> type, Class<T> paramClass)

Method Summary

Methods

Modifier and Type	Method and Description
protected abstract void	ensureAlias(BaseQueryImpl<?> query) Ensures the alias is generated.
protected void	ensureTypeResolved(MetamodelImpl metamodel) Ensures the type has been resolved.
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[]	getSqlRestrictionFragments(BaseQueryImpl<?> query) Returns the SQL restriction fragments.
protected void	setParameter(MetamodelImpl metamodel, Connection connection, 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, generateJpqlRestriction, getConverter, in, in, in, in, isNotNull, isNull, setConverter

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

alias, getAlias, getCompoundSelectionItems, handle, 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.Selection

alias, getCompoundSelectionItems, isCompoundSelection

Methods inherited from interface javax.persistence.TupleElement

getAlias, getJavaType

Constructor Detail

AbstractParameterExpressionImpl

public AbstractParameterExpressionImpl(TypeImpl<T> type,
                               Class<T> paramClass)

Parameters:

type - the persistent type of the parameter

paramClass - the class of the parameter

Since:

2.0.0

Method Detail

ensureAlias

protected abstract void ensureAlias(BaseQueryImpl<?> query)

Ensures the alias is generated.

Parameters:

query - the query

Since:

2.0.0

ensureTypeResolved

protected void ensureTypeResolved(MetamodelImpl metamodel)

Ensures the type has been resolved.

Parameters:

metamodel - the metamodel

Since:

2.0.0

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:

2.0.0

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

setParameter

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

Sets the parameters expanding if necessary.

Parameters:

metamodel - the metamodel

connection - the connection

parameters - the SQL parameters

sqlIndex - the index corresponding to expanded SQL parameter

value - the value to set to the parameter

Since:

2.0.0