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Class collections.CEImpl 

java.lang.Object
   |
   +----collections.CEImpl
public class CEImpl
extends Object
implements CollectionEnumeration
A convenient base class for implementations of CollectionEnumeration

Variable Index

o coll_
The collection being enumerated
o remaining_
The number of elements we think we have left.
o version_
The version number of the collection we got upon construction

Constructor Index

o CEImpl(UpdatableCollection)

Method Index

o corrupted()
Implements collections.CollectionEnumeration.corrupted.
o decRemaining()
Subclass utility.
o hasMoreElements()
Implements java.util.Enumeration.hasMoreElements.
o nextElement()
Implements java.util.Enumeration.nextElement.
o numberOfRemainingElements()
Implements collections.CollectionEnumeration.numberOfRemaingingElements.

Variables

o coll_ 
 protected UpdatableCollection coll_
The collection being enumerated

o version_ 
 protected int version_
The version number of the collection we got upon construction

o remaining_ 
 protected int remaining_
The number of elements we think we have left. Initialized to coll_.size() upon construction

Constructors

o CEImpl 
 protected CEImpl(UpdatableCollection c)

Methods

o corrupted 
 public boolean corrupted()
Implements collections.CollectionEnumeration.corrupted. Claim corruption if version numbers differ

See Also:
corrupted
o numberOfRemainingElements 
 public int numberOfRemainingElements()
Implements collections.CollectionEnumeration.numberOfRemaingingElements.

See Also:
numberOfRemainingElements
o hasMoreElements 
 public boolean hasMoreElements()
Implements java.util.Enumeration.hasMoreElements. Return true if numberOfRemainingElements > 0 and not corrupted

See Also:
hasMoreElements
o decRemaining 
 protected void decRemaining() throws NoSuchElementException
Subclass utility. Tries to decrement remaining_, raising exceptions if it is already zero or if corrupted() Always call as the first line of nextElement.

o nextElement 
 public Object nextElement()
Implements java.util.Enumeration.nextElement. No-Op default version

See Also:
nextElement 
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