Package io.micronaut.data.model.jpa.criteria.impl.util

Class Joiner

java.lang.Object

io.micronaut.data.model.jpa.criteria.impl.util.Joiner

All Implemented Interfaces:

ExpressionVisitor, PredicateVisitor, SelectionVisitor

@Internal
public class Joiner
extends Object
implements SelectionVisitor, PredicateVisitor

Traversing the query selection and predicates and extracting required query joins.

Since:

3.2

Author:

Denis Stepanov

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static final class	Joiner.Joined	The data structure representing a join.

Constructor Summary

Constructors

Constructor	Description
Joiner()

Method Summary

Modifier and Type	Method	Description
Map<String,Joiner.Joined>	getJoins()	Returns required query joins.
void	joinIfNeeded(PersistentPropertyPath<?> persistentPropertyPath)	Join property relationships if needed.
void	visit(BinaryExpression<?> binaryExpression)	Visit BinaryExpression.
void	visit(FunctionExpression<?> functionExpression)	Visit FunctionExpression.
void	visit(IdExpression<?,?> idExpression)	Visit IdExpression.
void	visit(LiteralExpression<?> literalExpression)	Visit LiteralExpression.
void	visit(UnaryExpression<?> unaryExpression)	Visit UnaryExpression.
void	visit(ConjunctionPredicate conjunction)	Visit ConjunctionPredicate.
void	visit(DisjunctionPredicate disjunction)	Visit DisjunctionPredicate.
void	visit(ExpressionBinaryPredicate expressionBinaryPredicate)	Visit ExpressionBinaryPredicate.
void	visit(LikePredicate likePredicate)	Visit LikePredicate.
void	visit(NegatedPredicate negate)	Visit NegatedPredicate.
void	visit(PersistentPropertyBetweenPredicate<?> propertyBetweenPredicate)	Visit PersistentPropertyBetweenPredicate.
void	visit(PersistentPropertyBinaryPredicate<?> propertyToExpressionOp)	Visit PersistentPropertyBinaryPredicate.
void	visit(PersistentPropertyInPredicate<?> inValues)	Visit PersistentPropertyInPredicate.
void	visit(PersistentPropertyUnaryPredicate<?> propertyOp)	Visit PersistentPropertyUnaryPredicate.
void	visit(AliasedSelection<?> aliasedSelection)	Visit AliasedSelection.
void	visit(CompoundSelection<?> compoundSelection)	Visit CompoundSelection.
void	visit(PersistentEntityRoot<?> entityRoot)	Visit PersistentEntityRoot.
void	visit(PersistentPropertyPath<?> persistentPropertyPath)	Visit PersistentPropertyPath.
void	visit(jakarta.persistence.criteria.Predicate predicate)	Visit Predicate.

Methods inherited from class java.lang.Object

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

Constructor Details

Joiner

public Joiner()

Method Details

getJoins

public Map<String,Joiner.Joined> getJoins()

Returns required query joins.

Returns:

The joins

joinIfNeeded

public void joinIfNeeded(PersistentPropertyPath<?> persistentPropertyPath)

Join property relationships if needed.

Parameters:

persistentPropertyPath - The property

visit

public void visit(PersistentEntityRoot<?> entityRoot)

Description copied from interface: ExpressionVisitor

Visit PersistentEntityRoot.

Specified by:

visit in interface ExpressionVisitor

Parameters:

entityRoot - The entityRoot

visit

public void visit(PersistentPropertyPath<?> persistentPropertyPath)

Description copied from interface: ExpressionVisitor

Visit PersistentPropertyPath.

Specified by:

visit in interface ExpressionVisitor

Parameters:

persistentPropertyPath - The persistentPropertyPath

visit

public void visit(jakarta.persistence.criteria.Predicate predicate)

Description copied from interface: ExpressionVisitor

Visit Predicate.

Specified by:

visit in interface ExpressionVisitor

Parameters:

predicate - The predicate

visit

public void visit(AliasedSelection<?> aliasedSelection)

Description copied from interface: SelectionVisitor

Visit AliasedSelection.

Specified by:

visit in interface SelectionVisitor

Parameters:

aliasedSelection - The aliasedSelection

visit

public void visit(CompoundSelection<?> compoundSelection)

Description copied from interface: SelectionVisitor

Visit CompoundSelection.

Specified by:

visit in interface SelectionVisitor

Parameters:

compoundSelection - The compoundSelection

visit

public void visit(LiteralExpression<?> literalExpression)

Description copied from interface: ExpressionVisitor

Visit LiteralExpression.

Specified by:

visit in interface ExpressionVisitor

Parameters:

literalExpression - The literalExpression

visit

public void visit(IdExpression<?,?> idExpression)

Description copied from interface: ExpressionVisitor

Visit IdExpression.

Specified by:

visit in interface ExpressionVisitor

Parameters:

idExpression - The idExpression

visit

public void visit(UnaryExpression<?> unaryExpression)

Description copied from interface: ExpressionVisitor

Visit UnaryExpression.

Specified by:

visit in interface ExpressionVisitor

Parameters:

unaryExpression - The unary expression

visit

public void visit(BinaryExpression<?> binaryExpression)

Description copied from interface: ExpressionVisitor

Visit BinaryExpression.

Specified by:

visit in interface ExpressionVisitor

Parameters:

binaryExpression - The aggregateExpression

visit

public void visit(FunctionExpression<?> functionExpression)

Description copied from interface: ExpressionVisitor

Visit FunctionExpression.

Specified by:

visit in interface ExpressionVisitor

Parameters:

functionExpression - The function expression

visit

public void visit(ConjunctionPredicate conjunction)

Description copied from interface: PredicateVisitor

Visit ConjunctionPredicate.

Specified by:

visit in interface PredicateVisitor

Parameters:

conjunction - The conjunction

visit

public void visit(DisjunctionPredicate disjunction)

Description copied from interface: PredicateVisitor

Visit DisjunctionPredicate.

Specified by:

visit in interface PredicateVisitor

Parameters:

disjunction - The disjunction

visit

public void visit(NegatedPredicate negate)

Description copied from interface: PredicateVisitor

Visit NegatedPredicate.

Specified by:

visit in interface PredicateVisitor

Parameters:

negate - The negate

visit

public void visit(PersistentPropertyUnaryPredicate<?> propertyOp)

Description copied from interface: PredicateVisitor

Visit PersistentPropertyUnaryPredicate.

Specified by:

visit in interface PredicateVisitor

Parameters:

propertyOp - The propertyOp

visit

public void visit(PersistentPropertyBetweenPredicate<?> propertyBetweenPredicate)

Description copied from interface: PredicateVisitor

Visit PersistentPropertyBetweenPredicate.

Specified by:

visit in interface PredicateVisitor

Parameters:

propertyBetweenPredicate - The propertyBetweenPredicate

visit

public void visit(PersistentPropertyBinaryPredicate<?> propertyToExpressionOp)

Description copied from interface: PredicateVisitor

Visit PersistentPropertyBinaryPredicate.

Specified by:

visit in interface PredicateVisitor

Parameters:

propertyToExpressionOp - The propertyToExpressionOp

visit

public void visit(PersistentPropertyInPredicate<?> inValues)

Description copied from interface: PredicateVisitor

Visit PersistentPropertyInPredicate.

Specified by:

visit in interface PredicateVisitor

Parameters:

inValues - The propertyIn

visit

public void visit(ExpressionBinaryPredicate expressionBinaryPredicate)

Description copied from interface: PredicateVisitor

Visit ExpressionBinaryPredicate.

Specified by:

visit in interface PredicateVisitor

Parameters:

expressionBinaryPredicate - The expressionBinaryPredicate

visit

public void visit(LikePredicate likePredicate)

Description copied from interface: PredicateVisitor

Visit LikePredicate.

Specified by:

visit in interface PredicateVisitor

Parameters:

likePredicate - The like predicate