org.apache.activemq.store.kahadb.disk.journal

Class TargetedDataFileAppender

java.lang.Object

org.apache.activemq.store.kahadb.disk.journal.TargetedDataFileAppender

All Implemented Interfaces:

AutoCloseable, FileAppender

public class TargetedDataFileAppender
extends Object
implements FileAppender

File Appender instance that performs batched writes in the thread where the write is queued. This appender does not honor the maxFileLength value in the journal as the files created here are out-of-band logs used for other purposes such as journal level compaction.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
class	TargetedDataFileAppender.WriteBatch

Field Summary

Fields inherited from interface org.apache.activemq.store.kahadb.disk.journal.FileAppender

maxStat, PROPERTY_LOG_WRITE_STAT_WINDOW

Constructor Summary

Constructors

Constructor and Description
TargetedDataFileAppender(Journal journal, DataFile target) Construct a Store writer

Method Summary

Modifier and Type	Method and Description
void	close()
boolean	isPreallocate()
void	setPreallocate(boolean preallocate)
Location	storeItem(ByteSequence data, byte type, boolean sync)
Location	storeItem(ByteSequence data, byte type, Runnable onComplete)

Methods inherited from class java.lang.Object

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

Constructor Detail

TargetedDataFileAppender

public TargetedDataFileAppender(Journal journal,
                                DataFile target)

Construct a Store writer

Method Detail

storeItem

public Location storeItem(ByteSequence data,
                          byte type,
                          boolean sync)
                   throws IOException

Specified by:

storeItem in interface FileAppender

Throws:

IOException

storeItem

public Location storeItem(ByteSequence data,
                          byte type,
                          Runnable onComplete)
                   throws IOException

Specified by:

storeItem in interface FileAppender

Throws:

IOException

close

public void close()
           throws IOException

Specified by:

close in interface AutoCloseable

Specified by:

close in interface FileAppender

Throws:

IOException

isPreallocate

public boolean isPreallocate()

setPreallocate

public void setPreallocate(boolean preallocate)