cgl.narada.matching.tagvalue
Class Predicate

java.lang.Object
  cgl.narada.matching.tagvalue.Predicate

All Implemented Interfaces:

MatchingDebugFlags

public class Predicate
extends Object
implements MatchingDebugFlags

Predicate.java

Field Summary

Fields inherited from interface cgl.narada.matching.tagvalue.MatchingDebugFlags

EdgeAttributes_Debug, EventID_Debug, Matching_Debug, MatchingTreeEdge_Debug, MatchingTreeNode_Debug, MEvent_Debug, Predicate_Debug

Constructor Summary

Predicate(byte[] predicateBytes)
This method serves to unmarshall a predicate stream received over the link.

Predicate(String subscription, int destinations)
A Predicate is comprised of both the subscription as well as the destination of the unit/super-unit that has expressed an interest in it.

Predicate(String subscription, String brokerDestination, int destinations)

Method Summary

boolean	equals(Predicate _predicate) Compares two objects for equality.
String	getBrokerDestination()
byte[]	getBytes() This method returns the predicate as a stream of bytes, the unmarshalling counterpart to this marshalling scheme is contained within one of the Predicate constructors
int	getDestination() This method returns the destinations assocaited with the subscription.
String	getPredicateId()
String	getSubscription() This method returns the subscription associated with the predicate.
int	hashCode() Generates a hash code for the receiver.
static void	main(String[] args)
String	toString() Provides a string representation of the predicate instance.

Methods inherited from class java.lang.Object

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

Constructor Detail

Predicate

public Predicate(String subscription,
                 int destinations)

A Predicate is comprised of both the subscription as well as the destination of the unit/super-unit that has expressed an interest in it.

Parameters:

subscription - The subscription is tag=value, tag=value pairs

destinations - The hierarchial destinations associated with this predicate

Predicate

public Predicate(String subscription,
                 String brokerDestination,
                 int destinations)

Predicate

public Predicate(byte[] predicateBytes)

This method serves to unmarshall a predicate stream received over the link. The corresponding marshalling method for the predicate is contained within the getBytes() method.

Parameters:

predicateBytes - The marshalled stream of predicate bytes that are received over a link.

Method Detail

getSubscription

public String getSubscription()

This method returns the subscription associated with the predicate.

Returns:

The subscription.

getDestination

public int getDestination()

This method returns the destinations assocaited with the subscription.

Returns:

The destinations.

getBrokerDestination

public String getBrokerDestination()

getPredicateId

public String getPredicateId()

equals

public boolean equals(Predicate _predicate)

Compares two objects for equality. Returns a boolean that indicates whether this object is equivalent to the specified object. This method is used when an object is stored in a hashtable.

Parameters:

_predicate - the Object to compare with

Returns:

true if these Objects are equal; false otherwise.

See Also:

Hashtable

hashCode

public int hashCode()

Generates a hash code for the receiver. This method is supported primarily for hash tables, such as those provided in java.util. If two objects are equal (equals(Object) returns true) they must have the same hash code

Overrides:

hashCode in class Object

Returns:

an integer hash code for the receiver

getBytes

public byte[] getBytes()

This method returns the predicate as a stream of bytes, the unmarshalling counterpart to this marshalling scheme is contained within one of the Predicate constructors

Returns:

The byte stream representation of the predicate

toString

public String toString()

Provides a string representation of the predicate instance.

Overrides:

toString in class Object

Returns:

Predicate as a String object.

main

public static void main(String[] args)