atg.vfs.journal

Class Journal.EntryIterator

java.lang.Object

atg.vfs.journal.Journal.EntryIterator

All Implemented Interfaces:

java.util.Iterator

Enclosing class:

Journal

public class Journal.EntryIterator
extends java.lang.Object
implements java.util.Iterator

Iterator for journal entries.

Method Summary

Modifier and Type	Method and Description
boolean	hasNext() Determine if there are more entries in this iteration.
java.lang.Object	next() Get the next entry in this iteration.
Journal.Entry	nextEntry() Get the next entry, like next() only the return does not need to be cast.
Journal.Entry	nextEntry(java.util.zip.Checksum pSum) Get the next entry from the journal with checksum
void	remove() The iterator does not support modification.

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Iterator

forEachRemaining

Method Detail

nextEntry

public Journal.Entry nextEntry()
                        throws JournalRuntimeException

Get the next entry, like next() only the return does not need to be cast.

Returns:

the entry

Throws:

JournalRuntimeException - if there is a problem reading the entry

nextEntry

public Journal.Entry nextEntry(java.util.zip.Checksum pSum)
                        throws JournalRuntimeException

Get the next entry from the journal with checksum

Parameters:

pSum - checksum to update with the byte[] that holds the serialized entry. NB: the length field (int) which precedes the entry in the file is not added to the checksum. after the entry is read. This may be null.

Returns:

the next entry from the journal

Throws:

JournalRuntimeException - if there is a problem reading the entry

hasNext

public boolean hasNext()

Determine if there are more entries in this iteration.

Specified by:

hasNext in interface java.util.Iterator

Returns:

true if there is at least one more entry in this iteration

next

public java.lang.Object next()

Get the next entry in this iteration.

Specified by:

next in interface java.util.Iterator

Returns:

the next entry

Throws:

java.util.NoSuchElementException - if there are no more entries

remove

public void remove()

The iterator does not support modification.

Specified by:

remove in interface java.util.Iterator

Throws:

java.lang.UnsupportedOperationException - always