Package org.drools.ancompiler

Class ObjectTypeNodeParser

java.lang.Object

org.drools.ancompiler.ObjectTypeNodeParser

public class ObjectTypeNodeParser
extends Object

This class is used for reading an ObjectTypeNode using callbacks.

The user defines a number of callback methods in a NetworkHandler that will be called when events occur during parsing. The events include :

ObjectTypeNode Non-hashed and hashed AlphaNodes BetaNodes LeftInputAdapterNodes

Events are fired when each of these network features are encountered, and again when the end of them is encountered. OTN parsing is unidirectional; previously parsed data cannot be re-read without starting the parsing operation again.

Constructor Summary

Constructors

Constructor	Description
ObjectTypeNodeParser(org.drools.core.reteoo.ObjectTypeNode objectTypeNode)	Creates a new parser for the specified ObjectTypeNode

Method Summary

Modifier and Type	Method	Description
void	accept(NetworkHandler handler)	Parse the objectTypeNode.
org.drools.core.rule.IndexableConstraint	getIndexableConstraint()
Set<org.drools.core.rule.IndexableConstraint>	getIndexableConstraints()
void	setTraverseHashedAlphaNodes(boolean traverseHashedAlphaNodes)

Methods inherited from class java.lang.Object

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

Constructor Detail

ObjectTypeNodeParser

public ObjectTypeNodeParser(org.drools.core.reteoo.ObjectTypeNode objectTypeNode)

Creates a new parser for the specified ObjectTypeNode

Parameters:

objectTypeNode - otn to parse

Method Detail

setTraverseHashedAlphaNodes

public void setTraverseHashedAlphaNodes(boolean traverseHashedAlphaNodes)

accept

public void accept(NetworkHandler handler)

Parse the objectTypeNode.

The application can use this method to instruct the OTN parser to begin parsing an ObjectTypeNode.

Once a parse is complete, an application may reuse the same Parser object, possibly with a different NetworkHandler.

Parameters:

handler - handler that will receieve the events generated by this parser

See Also:

NetworkHandler

getIndexableConstraints

public Set<org.drools.core.rule.IndexableConstraint> getIndexableConstraints()

getIndexableConstraint

public org.drools.core.rule.IndexableConstraint getIndexableConstraint()