Apache Derby Database Engine and Embedded JDBC Driver 10.17.1.0 · org.apache.derby.impl.io.vfmem.DataStoreEntry

Field Summary

Modifier and Type	Field and Description
private final boolean	isDir Tells if this entry is a directory or a regular file.
private boolean	isReadOnly Tells if this entry is read-only or not.
private final String	path The path of this entry.
private volatile boolean	released Tells if the entry has been released or not.
private final BlockedByteArray	src The data of the entry.

Constructor Summary

Access	Constructor and Description
public	DataStoreEntry(String the path of the entry path, boolean whether the entry is a directory or a regular file isDir) Creates a new data store entry.

Method Summary

Modifier and Type	Method and Description
private void	checkIfReleased() Checks if this entry has been released.
pack-priv BlockedByteArrayInputStream	Returns: An `InputStream`-object. getInputStream() Returns an input stream to read from this entry.
pack-priv BlockedByteArrayOutputStream	Returns: An `OutputStream`-object. getOutputStream(boolean tells whether the entry should be appended or not append) Returns an output stream to write into this entry.
public boolean	Returns: `true` if directory, `false` otherwise. isDirectory() Tells if this entry is a directory.
public boolean	Returns: `true` is read-only, `false` if not. isReadOnly() Tells if this entry is read-only.
public long	Returns: The length in bytes. length() Returns the length of this entry.
pack-priv void	release() Relases this entry.
public void	setLength(long the length in number of bytes newLength) Sets the length of this entry.
public void	setReadOnly() Makes this entry read-only.

Inherited from java.lang.Object:: clone equals finalize getClass hashCode notify notifyAll toString wait wait wait

Field Detail

isDir	back to summary
private final boolean isDir Tells if this entry is a directory or a regular file.

isReadOnly	back to summary
private boolean isReadOnly Tells if this entry is read-only or not.

path	back to summary
private final String path The path of this entry.

released	back to summary
private volatile boolean released Tells if the entry has been released or not.

src	back to summary
private final BlockedByteArray src The data of the entry.

Constructor Detail

DataStoreEntry	back to summary
public DataStoreEntry(String path, boolean isDir) Creates a new data store entry. Parameters path:String the path of the entry isDir:boolean whether the entry is a directory or a regular file

DataStoreEntry

back to summary

public DataStoreEntry(String path, boolean isDir)

Creates a new data store entry.

Parameters

path:String: the path of the entry
isDir:boolean: whether the entry is a directory or a regular file

Method Detail

checkIfReleased	back to summary
private void checkIfReleased() Checks if this entry has been released. Exceptions IllegalStateException: if the entry has been released

checkIfReleased

back to summary

private void checkIfReleased()

Checks if this entry has been released.

Exceptions

IllegalStateException:: if the entry has been released

getInputStream back to summary

getInputStream	back to summary
pack-priv BlockedByteArrayInputStream getInputStream() throws FileNotFoundException Returns an input stream to read from this entry. Returns:BlockedByteArrayInputStream An `InputStream`-object. Exceptions FileNotFoundException: if this entry is a directory

pack-priv BlockedByteArrayInputStream getInputStream() throws FileNotFoundException

Returns an input stream to read from this entry.

Returns:BlockedByteArrayInputStream

An InputStream-object.

Exceptions

FileNotFoundException:: if this entry is a directory

getOutputStream back to summary

getOutputStream	back to summary
pack-priv BlockedByteArrayOutputStream getOutputStream(boolean append) throws FileNotFoundException Returns an output stream to write into this entry. Parameters append:boolean tells whether the entry should be appended or not Returns:BlockedByteArrayOutputStream An `OutputStream`-object. Exceptions FileNotFoundException: if this entry is a directory, or is read-only

pack-priv BlockedByteArrayOutputStream getOutputStream(boolean append) throws FileNotFoundException

Returns an output stream to write into this entry.

Parameters

append:boolean: tells whether the entry should be appended or not

Returns:BlockedByteArrayOutputStream

An OutputStream-object.

Exceptions

FileNotFoundException:: if this entry is a directory, or is read-only

isDirectory back to summary

isDirectory	back to summary
public boolean isDirectory() Tells if this entry is a directory. Returns:boolean `true` if directory, `false` otherwise.

public boolean isDirectory()

Tells if this entry is a directory.

Returns:boolean: true if directory, false otherwise.

isReadOnly back to summary

isReadOnly	back to summary
public boolean isReadOnly() Tells if this entry is read-only. Returns:boolean `true` is read-only, `false` if not.

public boolean isReadOnly()

Tells if this entry is read-only.

Returns:boolean: true is read-only, false if not.

length	back to summary
public long length() Returns the length of this entry. Returns:long The length in bytes.

length

back to summary

public long length()

Returns the length of this entry.

Returns:long: The length in bytes.

release	back to summary
pack-priv void release() Relases this entry.

setLength	back to summary
public void setLength(long newLength) Sets the length of this entry. Parameters newLength:long the length in number of bytes

setLength

back to summary

public void setLength(long newLength)

Sets the length of this entry.

Parameters

newLength:long: the length in number of bytes

setReadOnly	back to summary
public void setReadOnly() Makes this entry read-only.

public Class DataStoreEntry

Field Summary

Constructor Summary

Method Summary

Field Detail

Constructor Detail

Method Detail