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(BetweenPredicate propertyBetweenPredicate)	Visit BetweenPredicate.
void	visit(BinaryPredicate binaryPredicate)	Visit BinaryPredicate.
void	visit(ConjunctionPredicate conjunction)	Visit ConjunctionPredicate.
void	visit(DisjunctionPredicate disjunction)	Visit DisjunctionPredicate.
void	visit(ExistsSubqueryPredicate existsSubqueryPredicate)	Visit ExistsSubqueryPredicate.
void	visit(InPredicate<?> inPredicate)	Visit InPredicate.
void	visit(LikePredicate likePredicate)	Visit LikePredicate.
void	visit(NegatedPredicate negate)	Visit NegatedPredicate.
void	visit(UnaryPredicate propertyOp)	Visit UnaryPredicate.
void	visit(AliasedSelection<?> aliasedSelection)	Visit AliasedSelection.
void	visit(CompoundSelection<?> compoundSelection)	Visit CompoundSelection.
void	visit(PersistentEntityRoot<?> entityRoot)	Visit PersistentEntityRoot.
void	visit(PersistentEntitySubquery<?> subquery)	Visit PersistentEntitySubquery.
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

Methods inherited from interface io.micronaut.data.model.jpa.criteria.impl.SelectionVisitor

visit, visit

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(PersistentEntitySubquery<?> subquery)

Description copied from interface: ExpressionVisitor

Visit PersistentEntitySubquery.

Specified by:

visit in interface ExpressionVisitor

Parameters:

subquery - The subquery

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 negated predicate

visit

public void visit(UnaryPredicate propertyOp)

Description copied from interface: PredicateVisitor

Visit UnaryPredicate.

Specified by:

visit in interface PredicateVisitor

Parameters:

propertyOp - The unary predicate

visit

public void visit(BetweenPredicate propertyBetweenPredicate)

Description copied from interface: PredicateVisitor

Visit BetweenPredicate.

Specified by:

visit in interface PredicateVisitor

Parameters:

propertyBetweenPredicate - The between predicate

visit

public void visit(BinaryPredicate binaryPredicate)

Description copied from interface: PredicateVisitor

Visit BinaryPredicate.

Specified by:

visit in interface PredicateVisitor

Parameters:

binaryPredicate - The binary predicate

visit

public void visit(InPredicate<?> inPredicate)

Description copied from interface: PredicateVisitor

Visit InPredicate.

Specified by:

visit in interface PredicateVisitor

Parameters:

inPredicate - The IN predicate

visit

public void visit(LikePredicate likePredicate)

Description copied from interface: PredicateVisitor

Visit LikePredicate.

Specified by:

visit in interface PredicateVisitor

Parameters:

likePredicate - The like predicate

visit

public void visit(ExistsSubqueryPredicate existsSubqueryPredicate)

Description copied from interface: PredicateVisitor

Visit ExistsSubqueryPredicate.

Specified by:

visit in interface PredicateVisitor

Parameters:

existsSubqueryPredicate - The exists subquery predicate