com.sun.multicast.allocation
Class ScopeList

java.lang.Object
  |
  +--com.sun.multicast.allocation.ScopeList

All Implemented Interfaces:

java.lang.Cloneable, java.io.Serializable

public class ScopeList

extends java.lang.Object

implements java.lang.Cloneable, java.io.Serializable

A multicast scope list.

Objects of this class and all values returned by their methods are immutable. That is, their values cannot change after they are constructed.

See Also:

Serialized Form

Constructor Summary

ScopeList()
Creates an empty ScopeList.

ScopeList(java.util.Enumeration scopes)
Creates a ScopeList with the specified parameters.

Method Summary

int	compareTo(java.lang.Object o) Compares this ScopeList with the specified object for order.
boolean	equals(java.lang.Object obj) Indicates whether some other object is "equal to" this one.
Scope	findScopeForTTL(int ttl) Finds a Scope suitable for use with the specified ttl value.
java.util.Enumeration	getScopes() Gets an Enumeration of the scopes in this list.
int	hashCode() Returns a hash code value for this object.
java.lang.String	toString() Returns a string representation of this ScopeList.

Methods inherited from class java.lang.Object

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

Constructor Detail

ScopeList

public ScopeList()

Creates an empty ScopeList.

ScopeList

public ScopeList(java.util.Enumeration scopes)

Creates a ScopeList with the specified parameters.

Parameters:

scopes - an Enumeration of Scopes to be included

Method Detail

getScopes

public java.util.Enumeration getScopes()

Gets an Enumeration of the scopes in this list.

Returns:

an Enumeration of Scopes

compareTo

public int compareTo(java.lang.Object o)
              throws java.lang.ClassCastException

Compares this ScopeList with the specified object for order. Returns a negative integer, zero, or a positive integer as this object is less than, equal to, or greater than the specified object.

If the other object is not a ScopeList, a ClassCastException is thrown.

This method imposes a total ordering on ScopeLists. ScopeLists are ordered according to the order of the Scopes contained within them.

Parameters:

o - the Object to compare against

Returns:

an integer reflecting the outcome of the comparison

Throws:

java.lang.ClassCastException - if the objects cannot be compared

equals

public boolean equals(java.lang.Object obj)

Indicates whether some other object is "equal to" this one. Two ScopeLists are equal if and only the Scopes in the ScopeLists are all equal.

Overrides:

equals in class java.lang.Object

Parameters:

obj - the object with which to compare

Returns:

true if this object is the same as the reference object, false otherwise.

hashCode

public int hashCode()

Returns a hash code value for this object. The hash code values for two ScopeLists are equal if they are equal. However, it may be possible for two unequal ScopeLists to have the same hash code.

Overrides:

hashCode in class java.lang.Object

Returns:

a hash code value for this ScopeList

findScopeForTTL

public Scope findScopeForTTL(int ttl)

Finds a Scope suitable for use with the specified ttl value.

Returns:

a Scope suitable for use with the specified ttl value (null if none available)

toString

public java.lang.String toString()

Returns a string representation of this ScopeList.

Overrides:

toString in class java.lang.Object

Returns:

a string representation of this ScopeList