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org.apache.derby.impl.io
Class DirStorageFactory4  

java.lang.Object
  org.apache.derby.impl.io.BaseStorageFactory
      org.apache.derby.impl.io.DirStorageFactory
          org.apache.derby.impl.io.DirStorageFactory4

All Implemented Interfaces:

org.apache.derby.io.StorageFactory, org.apache.derby.io.WritableStorageFactory

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public class DirStorageFactory4

extends DirStorageFactory

This class implements the WritableStorageFactory interface using features found in Java 1.4 but not in earlier versions of Java.

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Field Summary
private static boolean	rwsOK

 

Fields inherited from class org.apache.derby.impl.io.DirStorageFactory

canonicalName, dataDirectory, home, separatedDataDirectory, tempDir, tempDirPath, uniqueName

 

Fields inherited from interface org.apache.derby.io.StorageFactory

VERSION_NUMBER

 

Constructor Summary

DirStorageFactory4()           Most of the initialization is done in the init method.

 

Method Summary
(package private)  org.apache.derby.io.StorageFile	newPersistentFile(org.apache.derby.io.StorageFile directoryName, java.lang.String fileName)           Construct a persistent StorageFile from a directory and path name.
(package private)  org.apache.derby.io.StorageFile	newPersistentFile(java.lang.String path)           Construct a persistent StorageFile from a path name.
(package private)  org.apache.derby.io.StorageFile	newPersistentFile(java.lang.String directoryName, java.lang.String fileName)           Construct a persistent StorageFile from a directory and path name.
boolean	supportsRws()           This method tests whether the "rws" and "rwd" modes are implemented.

 

Methods inherited from class org.apache.derby.impl.io.DirStorageFactory

createTempDir, doInit, getCanonicalName, getSeparator, getStorageFactoryVersion, getTempDir, init, isFast, isReadOnlyDatabase, newStorageFile, newStorageFile, newStorageFile, shutdown, supportsRandomAccess, sync

 

Methods inherited from class java.lang.Object

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

 

Methods inherited from interface org.apache.derby.io.StorageFactory

getCanonicalName, getSeparator, getStorageFactoryVersion, getTempDir, init, isFast, shutdown

 

Field Detail

rwsOK

private static final boolean rwsOK

Constructor Detail

DirStorageFactory4

public DirStorageFactory4()

Most of the initialization is done in the init method.

Method Detail

newPersistentFile

org.apache.derby.io.StorageFile newPersistentFile(java.lang.String path)

Construct a persistent StorageFile from a path name.

Overrides:

newPersistentFile in class DirStorageFactory

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newPersistentFile

org.apache.derby.io.StorageFile newPersistentFile(java.lang.String directoryName,
                                                  java.lang.String fileName)

Construct a persistent StorageFile from a directory and path name.

Overrides:

newPersistentFile in class DirStorageFactory

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newPersistentFile

org.apache.derby.io.StorageFile newPersistentFile(org.apache.derby.io.StorageFile directoryName,
                                                  java.lang.String fileName)

Construct a persistent StorageFile from a directory and path name.

Overrides:

newPersistentFile in class DirStorageFactory

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supportsRws

public boolean supportsRws()

This method tests whether the "rws" and "rwd" modes are implemented. If the "rws" method is supported then the database engine will conclude that the write methods of "rws" mode StorageRandomAccessFiles are slow but the sync method is fast and optimize accordingly.

Specified by:

supportsRws in interface org.apache.derby.io.WritableStorageFactory

Overrides:

supportsRws in class DirStorageFactory

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Overview  Package   Class  Use  Deprecated  Index
Home >> All >> org >> apache >> derby >> impl >> [ io overview ]	PREV CLASS  NEXT CLASS
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