jrun.ejb.ejbql
Class ExpressionBase

java.lang.Object
  |
  +--jrun.ejb.ejbql.ExpressionBase

All Implemented Interfaces:

Element, Expression

Direct Known Subclasses:

AbstractSchemaName, ApproxDoubleNumericLiteral, ApproxFloatNumericLiteral, BinaryOperatorExpression, BooleanLiteral, CmpField, CmrField, ExactIntNumericLiteral, ExactLongNumericLiteral, IdentificationVar, InputParam, NaryOperatorExpression, NavigationExpression, ObjectLiteral, SelectField, StringLiteral, UnaryOperatorExpression

public abstract class ExpressionBase

extends java.lang.Object

implements Expression

Common implementation shared by concrete expression classes.

Author:

Enrique Duvos

Fields inherited from interface jrun.ejb.ejbql.Element

UNSPECIFIED_TRAVERSAL_ORDER

Constructor Summary

ExpressionBase()

Method Summary

java.util.ListIterator	getChildren(int traversalType) Provide default implementation that returns 0 children.
boolean	isCmpField()
boolean	isCmrField()
boolean	isIdentificationVar()
boolean	isInputParam()
boolean	isNavigationExpression()
boolean	isOperatorExpression()

Methods inherited from class java.lang.Object

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

Methods inherited from interface jrun.ejb.ejbql.Expression

getJavaType

Methods inherited from interface jrun.ejb.ejbql.Element

accept

Constructor Detail

ExpressionBase

public ExpressionBase()

Method Detail

isIdentificationVar

public boolean isIdentificationVar()

Specified by:

isIdentificationVar in interface Expression

isNavigationExpression

public boolean isNavigationExpression()

Specified by:

isNavigationExpression in interface Expression

isOperatorExpression

public boolean isOperatorExpression()

Specified by:

isOperatorExpression in interface Expression

isCmrField

public boolean isCmrField()

Specified by:

isCmrField in interface Expression

isCmpField

public boolean isCmpField()

Specified by:

isCmpField in interface Expression

isInputParam

public boolean isInputParam()

Specified by:

isInputParam in interface Expression

getChildren

public java.util.ListIterator getChildren(int traversalType)

Provide default implementation that returns 0 children.

Specified by:

getChildren in interface Element