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org.eclipse.persistence.jpa.internal.jpql
Class JPQLQueryContext.QueryExpressionVisitor

java.lang.Object
org.eclipse.persistence.jpa.internal.jpql.parser.AnonymousExpressionVisitor
org.eclipse.persistence.jpa.internal.jpql.parser.AbstractTraverseParentVisitor
org.eclipse.persistence.jpa.internal.jpql.JPQLQueryContext.QueryExpressionVisitor

All Implemented Interfaces:

ExpressionVisitor

Enclosing class:

JPQLQueryContext

private static class JPQLQueryContext.QueryExpressionVisitor

extends AbstractTraverseParentVisitor

This visitor is responsible to retrieve the Expression that is the beginning of a query. For a subquery, it will retrieve SimpleSelectStatement and for a top-level query, it will retrieve JPQLExpression. The search goes through the parent hierarchy.

Field Summary

(package private) Expression

expression The Expression that is the beginning of a query.

Constructor Summary

private

JPQLQueryContext.QueryExpressionVisitor()

Method Summary

void	visit(JPQLExpression expression) Visits the JPQLExpression expression.
void	visit(SimpleSelectStatement expression) Visits the SimpleSelectStatement expression.

Methods inherited from class org.eclipse.persistence.jpa.internal.jpql.parser.AbstractTraverseParentVisitor

visit

Methods inherited from class org.eclipse.persistence.jpa.internal.jpql.parser.AnonymousExpressionVisitor

visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit

Methods inherited from class java.lang.Object

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

Field Detail

expression

Expression expression

The Expression that is the beginning of a query.

Constructor Detail

JPQLQueryContext.QueryExpressionVisitor

private JPQLQueryContext.QueryExpressionVisitor()

Method Detail

visit

public void visit(JPQLExpression expression)

Visits the JPQLExpression expression.

Specified by:

visit in interface ExpressionVisitor

Overrides:

visit in class AbstractTraverseParentVisitor

Parameters:

expression - The Expression to visit

visit

public void visit(SimpleSelectStatement expression)

Visits the SimpleSelectStatement expression.

Specified by:

visit in interface ExpressionVisitor

Overrides:

visit in class AnonymousExpressionVisitor

Parameters:

expression - The Expression to visit

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