com.faunos.skwish.sys.filters
Class AppendProtectedFilterSegment

java.lang.Object
  com.faunos.skwish.Segment
      com.faunos.skwish.sys.filters.FilterSegment
          com.faunos.skwish.sys.filters.AppendProtectedFilterSegment

All Implemented Interfaces:

Range

Direct Known Subclasses:

DeleteSetFilterSegment, SubSegment

public class AppendProtectedFilterSegment
extends FilterSegment

A filter that prevents appending entries to an underlying Segment.

Author:

Babak Farhang

Field Summary

Fields inherited from class com.faunos.skwish.sys.filters.FilterSegment

inner

Fields inherited from class com.faunos.skwish.Segment

validator

Constructor Summary

AppendProtectedFilterSegment(Segment inner)
Creates a new instance with the underlying inner segment.

Method Summary

long	insertEntry(ByteBuffer entry) Unsupported operation.
long	insertEntry(ReadableByteChannel entry) Unsupported operation.
long	killNext(int count) Unsupported operation.

Methods inherited from class com.faunos.skwish.sys.filters.FilterSegment

delete, getBaseId, getEntry, getEntryChannel, getEntryCount, getEntryPart, getEntrySize, getNextId, isReadOnly

Methods inherited from class com.faunos.skwish.Segment

contains, delete, delete, getEntry, getEntrySize, getEntryStream, hi, isDeleted, isDeleted, killNext, lo, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

AppendProtectedFilterSegment

public AppendProtectedFilterSegment(Segment inner)

Creates a new instance with the underlying inner segment.

Method Detail

insertEntry

public long insertEntry(ByteBuffer entry)
                 throws IOException

Unsupported operation. Throws UnsupportedOperationException.

Overrides:

insertEntry in class FilterSegment

Parameters:

entry - they contents of the entry

Returns:

the ID assigned to the entry

Throws:

IOException

insertEntry

public long insertEntry(ReadableByteChannel entry)
                 throws IOException

Unsupported operation. Throws UnsupportedOperationException.

Overrides:

insertEntry in class FilterSegment

Throws:

IOException

killNext

public long killNext(int count)
              throws IOException

Unsupported operation. Throws UnsupportedOperationException.

Overrides:

killNext in class FilterSegment

Parameters:

count - the number of entries to kill (must be greater than 1)

Returns:

the value that getNextId() returns after this method has completed

Throws:

IOException