com.gridsystems.beanfilter
Class EvalNode

java.lang.Object
  com.gridsystems.beanfilter.EvalValue
      com.gridsystems.beanfilter.EvalNode

Direct Known Subclasses:

AndNode, BooleanNode, CollectionNode, CompareNode, NotNode, OrNode

public abstract class EvalNode
extends EvalValue

Evaluation tree node.

Version:

1.0

Author:

Rodrigo Ruiz, Xmas

Field Summary

Fields inherited from class com.gridsystems.beanfilter.EvalValue

BOOLEAN, COLLECTION, NUMBER, STRING, UNKNOWN, VOID

Constructor Summary

EvalNode(int linePos, int charPos)
Creates a new instance.

Method Summary

abstract boolean	eval(java.lang.Object src) Evaluates the node.
java.lang.Class<?>	getClassValue(java.lang.Class<?> parentClass)
java.lang.Object	getValue(java.lang.Object src) Gets the value.

Methods inherited from class com.gridsystems.beanfilter.EvalValue

getCharPos, getLinePos

Methods inherited from class java.lang.Object

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

Constructor Detail

EvalNode

public EvalNode(int linePos,
                int charPos)

Creates a new instance.

Parameters:

linePos - The line token position

charPos - The char token position

Method Detail

getValue

public final java.lang.Object getValue(java.lang.Object src)
                                throws EvalException

Gets the value.

Specified by:

getValue in class EvalValue

Parameters:

src - The data source

Returns:

The value

Throws:

EvalException - FTR005: Unknown field path

getClassValue

public final java.lang.Class<?> getClassValue(java.lang.Class<?> parentClass)
                                       throws EvalException

Specified by:

getClassValue in class EvalValue

Parameters:

parentClass - Parent Class

Returns:

Return the Java Class that represents or null if it is unknown.

Throws:

EvalException - If an error occurs

eval

public abstract boolean eval(java.lang.Object src)
                      throws EvalException

Evaluates the node.

Parameters:

src - Data source, for dynamic nodes

Returns:

true if src makes true the node

Throws:

EvalException - If an error occurs