org.eclipse.persistence.jpa.jpql
Class DefaultSemanticValidator.TypeValidator

java.lang.Object
  org.eclipse.persistence.jpa.jpql.parser.AbstractExpressionVisitor
      org.eclipse.persistence.jpa.jpql.DefaultSemanticValidator.TypeValidator

All Implemented Interfaces:

ExpressionVisitor

Direct Known Subclasses:

DefaultSemanticValidator.BooleanTypeValidator, DefaultSemanticValidator.NumericTypeValidator, DefaultSemanticValidator.StringTypeValidator

Enclosing class:

DefaultSemanticValidator

protected abstract class DefaultSemanticValidator.TypeValidator
extends AbstractExpressionVisitor

The basic validator for validating the type of an Expression.

Field Summary

protected boolean

valid Determines whether the expression that was visited returns a number.

Constructor Summary

protected

DefaultSemanticValidator.TypeValidator()

Method Summary

protected abstract boolean	isRightType(java.lang.Object type) Determines whether the given type is the expected type.
void	visit(CaseExpression expression) Visits the CaseExpression expression.
void	visit(CoalesceExpression expression) Visits the CoalesceExpression expression.
void	visit(InputParameter expression) Visits the InputParameter expression.
void	visit(NullExpression expression) Visits the NullExpression expression.
void	visit(NullIfExpression expression) Visits the NullIfExpression expression.
void	visit(StateFieldPathExpression expression) Visits the StateFieldPathExpression expression.
void	visit(SubExpression expression) Visits the SubExpression expression.

Methods inherited from class org.eclipse.persistence.jpa.jpql.parser.AbstractExpressionVisitor

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

valid

protected boolean valid

Determines whether the expression that was visited returns a number.

Constructor Detail

DefaultSemanticValidator.TypeValidator

protected DefaultSemanticValidator.TypeValidator()

Method Detail

isRightType

protected abstract boolean isRightType(java.lang.Object type)

Determines whether the given type is the expected type.

Parameters:

type - The type to validate

Returns:

true if the given type is of the expected type; false if it's not the right type

visit

public final void visit(CaseExpression expression)

Visits the CaseExpression expression.

Specified by:

visit in interface ExpressionVisitor

Overrides:

visit in class AbstractExpressionVisitor

Parameters:

expression - The Expression to visit

visit

public final void visit(CoalesceExpression expression)

Visits the CoalesceExpression expression.

Specified by:

visit in interface ExpressionVisitor

Overrides:

visit in class AbstractExpressionVisitor

Parameters:

expression - The Expression to visit

visit

public final void visit(InputParameter expression)

Visits the InputParameter expression.

Specified by:

visit in interface ExpressionVisitor

Overrides:

visit in class AbstractExpressionVisitor

Parameters:

expression - The Expression to visit

visit

public void visit(NullExpression expression)

Visits the NullExpression expression.

Specified by:

visit in interface ExpressionVisitor

Overrides:

visit in class AbstractExpressionVisitor

Parameters:

expression - The Expression to visit

visit

public final void visit(NullIfExpression expression)

Visits the NullIfExpression expression.

Specified by:

visit in interface ExpressionVisitor

Overrides:

visit in class AbstractExpressionVisitor

Parameters:

expression - The Expression to visit

visit

public final void visit(StateFieldPathExpression expression)

Visits the StateFieldPathExpression expression.

Specified by:

visit in interface ExpressionVisitor

Overrides:

visit in class AbstractExpressionVisitor

Parameters:

expression - The Expression to visit

visit

public final void visit(SubExpression expression)

Visits the SubExpression expression.

Specified by:

visit in interface ExpressionVisitor

Overrides:

visit in class AbstractExpressionVisitor

Parameters:

expression - The Expression to visit