org.eclipse.smila.binarystorage.persistence.jpa
Class JPABinaryPersistence

java.lang.Object
  org.eclipse.smila.binarystorage.persistence.BinaryPersistence
      org.eclipse.smila.binarystorage.persistence.jpa.JPABinaryPersistence

public class JPABinaryPersistence
extends BinaryPersistence

JPA Binary Storage persistence layer.

Field Summary

static java.lang.String	BUNDLE_NAME name of bundle.
static java.lang.String	CONFIGURATION_FILE name of configuration file.
static java.lang.String	PERSISTENCE_UNIT_NAME Constant for the eclipseLink persistence unit name.

Constructor Summary

JPABinaryPersistence(BinaryStorageConfiguration binaryStorageConfig)
Basic constructor.

Method Summary

void	cleanup() Release resources and performs cleanup actions.
void	deleteBinary(java.lang.String key) Delete binary data by key from binary storage.
long	fetchSize(java.lang.String key) Fetch record size.
byte[]	loadBinaryAsByteArray(java.lang.String key) Fetch binary data by key from binary storage.
java.io.InputStream	loadBinaryAsInputStream(java.lang.String key) Fetch binary data by key from binary storage.
void	storeBinary(java.lang.String key, byte[] content) Store binary data in binary storage.
void	storeBinary(java.lang.String key, java.io.InputStream stream) Store binary data in binary storage.

Methods inherited from class java.lang.Object

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

Field Detail

BUNDLE_NAME

public static final java.lang.String BUNDLE_NAME

name of bundle. Used in configuration reading.

See Also:

Constant Field Values

PERSISTENCE_UNIT_NAME

public static final java.lang.String PERSISTENCE_UNIT_NAME

Constant for the eclipseLink persistence unit name.

See Also:

Constant Field Values

CONFIGURATION_FILE

public static final java.lang.String CONFIGURATION_FILE

name of configuration file. Hardcoded for now (or fallback), configuration properties should be received from configuration service later.

See Also:

Constant Field Values

Constructor Detail

JPABinaryPersistence

public JPABinaryPersistence(BinaryStorageConfiguration binaryStorageConfig)
                     throws BinaryStorageException

Basic constructor.

Parameters:

binaryStorageConfig - the BinaryStorageConfiguration

Throws:

BinaryStorageException - if any error occurs during initialization

Method Detail

storeBinary

public void storeBinary(java.lang.String key,
                        byte[] content)
                 throws BinaryStorageException

Store binary data in binary storage.

Specified by:

storeBinary in class BinaryPersistence

Parameters:

key - String - unique identifier inside of binary storage

content - byte[] - binary content

Throws:

BinaryStorageException - - in case of any exception occurs

See Also:

org.eclipse.smila.binarystorage.internal.impl.persistence.BinaryPersistence#storeBinary(java.lang.String, byte[])

storeBinary

public void storeBinary(java.lang.String key,
                        java.io.InputStream stream)
                 throws BinaryStorageException

Store binary data in binary storage.

Specified by:

storeBinary in class BinaryPersistence

Parameters:

key - String - unique identifier inside of binary storage

stream - InputStream - binary data input stream

Throws:

BinaryStorageException - - in case of any exception occurs

See Also:

org.eclipse.smila.binarystorage.internal.impl.persistence.BinaryPersistence#storeBinary(java.lang.String, java.io.InputStream)

deleteBinary

public void deleteBinary(java.lang.String key)
                  throws BinaryStorageException

Delete binary data by key from binary storage.

Specified by:

deleteBinary in class BinaryPersistence

Parameters:

key - String - unique identifier inside of binary storage

Throws:

BinaryStorageException - - in case of any exception occurs

See Also:

org.eclipse.smila.binarystorage.internal.impl.persistence.BinaryPersistence#deleteBinary(java.lang.String)

fetchSize

public long fetchSize(java.lang.String key)
               throws BinaryStorageException

Fetch record size.

Specified by:

fetchSize in class BinaryPersistence

Parameters:

key - String - unique identifier inside of binary storage

Returns:

long - size of record

Throws:

BinaryStorageException - - in case of any exception occurs

See Also:

org.eclipse.smila.binarystorage.internal.impl.persistence.BinaryPersistence#fetchSize(java.lang.String)

loadBinaryAsByteArray

public byte[] loadBinaryAsByteArray(java.lang.String key)
                             throws BinaryStorageException

Fetch binary data by key from binary storage.

Specified by:

loadBinaryAsByteArray in class BinaryPersistence

Parameters:

key - String - unique identifier inside of binary storage

Returns:

byte[] - binary data

Throws:

BinaryStorageException - - in case of any exception occurs

See Also:

loadBinaryAsByteArray(java.lang.String)

loadBinaryAsInputStream

public java.io.InputStream loadBinaryAsInputStream(java.lang.String key)
                                            throws BinaryStorageException

Fetch binary data by key from binary storage.

Specified by:

loadBinaryAsInputStream in class BinaryPersistence

Parameters:

key - String - unique identifier inside of binary storage

Returns:

InputStream - binary input stream

Throws:

BinaryStorageException - - in case of any exception occurs

See Also:

loadBinaryAsInputStream(java.lang.String)

cleanup

public void cleanup()
             throws BinaryStorageException

Release resources and performs cleanup actions.

Specified by:

cleanup in class BinaryPersistence

Throws:

BinaryStorageException - in case of any exception

See Also:

org.eclipse.smila.binarystorage.internal.impl.persistence.BinaryPersistence#cleanup()