org.antfarmer.ejce.hibernate

Class EncryptedBlobType

java.lang.Object

org.antfarmer.ejce.hibernate.AbstractHibernateType

org.antfarmer.ejce.hibernate.AbstractLobType

org.antfarmer.ejce.hibernate.EncryptedBlobType

All Implemented Interfaces:

ParameterizedType, UserType

public class EncryptedBlobType
extends AbstractLobType

Hibernate UserType class which encrypts and decrypts BLOB values transparently. This ensures data is stored in it's encrypted form in persistent storage, while not affecting it's real value in the application.

Field Summary

Fields inherited from class org.antfarmer.ejce.hibernate.AbstractHibernateType

DEFAULT_CHARSET, random

Constructor Summary

Constructors

Constructor and Description
EncryptedBlobType()

Method Summary

Modifier and Type	Method and Description
protected Object	createLob(byte[] bytes, SessionImplementor session) Converts the InputStream to a LOB.
protected Object	createLob(InputStream is, long length, SessionImplementor session) Converts the InputStream to a LOB.
protected InputStream	lobToStream(Object value) Converts the LOB value to an InputStream.
Class<?>	returnedClass()

Methods inherited from class org.antfarmer.ejce.hibernate.AbstractLobType

configure, createTempFile, decrypt, decryptStream, encrypt, encryptStream, generateTempFileName, getMaxInMemoryBuffSize, getStreamBuffSize, initializeIfNot, isUseCompression, nullSafeGet, nullSafeSet, setStream, sqlTypes, streamToLob

Methods inherited from class org.antfarmer.ejce.hibernate.AbstractHibernateType

assemble, deepCopy, disassemble, equals, getCharset, getEncryptor, hashCode, isMutable, replace, setCharset, setParameterValues

Methods inherited from class java.lang.Object

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

Constructor Detail

EncryptedBlobType

public EncryptedBlobType()

Method Detail

returnedClass

public Class<?> returnedClass()

Specified by:

returnedClass in interface UserType

Specified by:

returnedClass in class AbstractLobType

lobToStream

protected InputStream lobToStream(Object value)
                           throws SQLException

Converts the LOB value to an InputStream.

Specified by:

lobToStream in class AbstractLobType

Parameters:

value - the LOB value

Returns:

the InputStream

Throws:

SQLException - an error converting the value to an InputStream

createLob

protected Object createLob(InputStream is,
                           long length,
                           SessionImplementor session)
                    throws IOException

Converts the InputStream to a LOB.

Specified by:

createLob in class AbstractLobType

Parameters:

is - the InputStream

length - the stream length

session - the SessionImplementor

Returns:

the LOB

Throws:

IOException - an error converting the stream to a LOB

createLob

protected Object createLob(byte[] bytes,
                           SessionImplementor session)
                    throws IOException

Converts the InputStream to a LOB.

Specified by:

createLob in class AbstractLobType

Parameters:

bytes - the bytes

session - the SessionImplementor

Returns:

the LOB

Throws:

IOException - an error converting the stream to a LOB