public Class ExistsNode

Class Inheritance

extends Node

Imports

INTERNAL

Purpose: Represent an EXISTS subquery.

Field Summary

Modifier and Type	Field and Description
private boolean	notIndicated True in case of a NOT EXISTS (...) query.

Inherited from org.eclipse.persistence.internal.jpa.parsing.Node:: alias left right shouldGenerateExpression

Access	Constructor and Description
public	ExistsNode() Return a new ExistsNode.

Modifier and Type	Method and Description
public Expression	generateExpression(GenerationContext context) Overrides org.eclipse.persistence.internal.jpa.parsing.Node.generateExpression. INTERNAL Generate the EclipseLink expression for this node
public void	indicateNot() INTERNAL Indicate if a NOT was found in the WHERE clause.
public boolean	notIndicated()
public void	validate(ParseTreeContext context) Overrides org.eclipse.persistence.internal.jpa.parsing.Node.validate. INTERNAL Validate node and calculate its type.

notIndicated	back to summary
private boolean notIndicated True in case of a NOT EXISTS (...) query.

ExistsNode	back to summary
public ExistsNode() Return a new ExistsNode.

generateExpression	back to summary
public Expression generateExpression(GenerationContext context) Overrides org.eclipse.persistence.internal.jpa.parsing.Node.generateExpression. INTERNAL Generate the EclipseLink expression for this node Annotations @Override

generateExpression

public Expression generateExpression(GenerationContext context)

INTERNAL Generate the EclipseLink expression for this node

Annotations

indicateNot	back to summary
public void indicateNot() INTERNAL Indicate if a NOT was found in the WHERE clause. Examples: WHERE ... NOT EXISTS(...)

notIndicated	back to summary
public boolean notIndicated()

validate	back to summary
public void validate(ParseTreeContext context) Overrides org.eclipse.persistence.internal.jpa.parsing.Node.validate. INTERNAL Validate node and calculate its type. Change subquery SELECT clause. Annotations @Override

validate

public void validate(ParseTreeContext context)

INTERNAL Validate node and calculate its type. Change subquery SELECT clause.

Annotations