org.zkoss.zel.impl.parser

Class AstNull

java.lang.Object

org.zkoss.zel.impl.lang.ELSupport

org.zkoss.zel.impl.parser.SimpleNode

org.zkoss.zel.impl.parser.AstNull

All Implemented Interfaces:

Node

public final class AstNull
extends SimpleNode

Author:

Jacob Hookom [jacob@hookom.net]

Field Summary

Fields inherited from class org.zkoss.zel.impl.parser.SimpleNode

children, id, image, parent

Fields inherited from class org.zkoss.zel.impl.lang.ELSupport

COERCE_NULL_TO_NULL, COERCE_TO_ZERO

Constructor Summary

Constructors

Constructor and Description
AstNull(int id)

Method Summary

Modifier and Type	Method and Description
Class<?>	getType(EvaluationContext ctx)
Object	getValue(EvaluationContext ctx)

Methods inherited from class org.zkoss.zel.impl.parser.SimpleNode

accept, equals, getImage, getMethodInfo, getValueReference, hashCode, invoke, isParametersProvided, isReadOnly, jjtAddChild, jjtClose, jjtGetChild, jjtGetNumChildren, jjtGetNumSiblings, jjtGetParent, jjtOpen, jjtSetParent, setImage, setValue, toString

Methods inherited from class org.zkoss.zel.impl.lang.ELSupport

coerceToBoolean, coerceToDateTime, coerceToEnum, coerceToNumber, coerceToNumber, coerceToNumber, coerceToString, coerceToType, coerceToTypeForSetValue, compare, equals, isBigDecimalOp, isBigIntegerOp, isDateTimeType, isDoubleOp, isLongOp, isStringFloat

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

AstNull

public AstNull(int id)

Method Detail

getType

public Class<?> getType(EvaluationContext ctx)
                 throws ELException

Specified by:

getType in interface Node

Overrides:

getType in class SimpleNode

Throws:

ELException

getValue

public Object getValue(EvaluationContext ctx)
                throws ELException

Specified by:

getValue in interface Node

Overrides:

getValue in class SimpleNode

Throws:

ELException