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

Class AbstractExpression<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>

Type Parameters:

T - the type of the expression

All Implemented Interfaces:

Expression<T>, Selection<T>, TupleElement<T>

Direct Known Subclasses:

AbstractPath, AbstractTypeExpression, AggregationExpression, AllAnyExpression, ArithmeticExression, BooleanExpression, CaseImpl, CaseTransformationExpression, CoalesceExpression, CollectionExpression, ComparisonExpression, ConcatExpression, ConstantExpression, CountExpression, CurrentTemporalExpression, ExistsExpression, FunctionExpression, IndexExpression, InExpression, IsEmptyExpression, IsNullExpression, LikeExpression, LocateExpression, MapEntryExpression, MapExpression, MemberOfExpression, NegationExpression, NullIfExpression, NumericFunctionExpression, ParameterExpressionImpl, SimpleCaseImpl, SizeExpression, SubqueryImpl, SubstringExpression, TrimExpression

public abstract class AbstractExpression<T>
extends AbstractSelection<T>
implements Expression<T>

Type for query expressions.

Since:

$version

Author:

hceylan

Constructor Summary

Constructors

Constructor and Description
AbstractExpression(Class<T> javaType)

Method Summary

Methods

Modifier and Type	Method and Description
<X> Expression<X>	as(Class<X> type)
abstract String	generateJpqlRestriction(BaseQueryImpl<?> query) Returns the JPQL where fragment.
ExpressionConverter<?>	getConverter() Returns the converter of the expression.
Predicate	in(Collection<?> values)
PredicateImpl	in(Expression<?>... values)
PredicateImpl	in(Expression<Collection<?>> values)
PredicateImpl	in(Object... values)
PredicateImpl	isNotNull()
PredicateImpl	isNull()
<N> Expression<N>	setConverter(ExpressionConverter<N> converter) Sets the numeric converter of the expression

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

alias, generateJpqlSelect, generateSqlSelect, getAlias, getCompoundSelectionItems, getSqlRestrictionFragments, 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

AbstractExpression

public AbstractExpression(Class<T> javaType)

Parameters:

javaType - the java type

Since:

$version

Method Detail

as

public <X> Expression<X> as(Class<X> type)

Specified by:

as in interface Expression<T>

generateJpqlRestriction

public abstract String generateJpqlRestriction(BaseQueryImpl<?> query)

Returns the JPQL where fragment.

Parameters:

query - the query

Returns:

the JPQL where fragment

Since:

$version

getConverter

public ExpressionConverter<?> getConverter()

Returns the converter of the expression.

Returns:

the converter of the expression

Since:

$version

in

public Predicate in(Collection<?> values)

Specified by:

in in interface Expression<T>

in

public PredicateImpl in(Expression<?>... values)

Specified by:

in in interface Expression<T>

in

public PredicateImpl in(Expression<Collection<?>> values)

Specified by:

in in interface Expression<T>

in

public PredicateImpl in(Object... values)

Specified by:

in in interface Expression<T>

isNotNull

public PredicateImpl isNotNull()

Specified by:

isNotNull in interface Expression<T>

isNull

public PredicateImpl isNull()

Specified by:

isNull in interface Expression<T>

setConverter

public <N> Expression<N> setConverter(ExpressionConverter<N> converter)

Sets the numeric converter of the expression

Type Parameters:

N - the type of the conversion

Parameters:

converter - the numeric converter instance

Returns:

the same expression

Since:

$version