com.atlassian.hibernate
Class BucketClobStringType

java.lang.Object
  com.atlassian.hibernate.BucketClobStringType

All Implemented Interfaces:

net.sf.hibernate.UserType

public class BucketClobStringType
extends java.lang.Object
implements net.sf.hibernate.UserType

A custom UserType that maps stings to clobs. This type supports custom handling for:

• Oracle
• MySQL
• HSQL

This custom UserType contains a workaround for the Oracle Clob memory problem. To recap, the issue is that when dealing with Clobs, the oracle drivers will return strings with 64k char[] regardless of the amount of data they hold. So, to fix this we need to release that char[] as quickly as possible, via new String().

Nested Class Summary

protected static class

BucketClobStringType.LobCreatorSynchronization Callback for resource cleanup at the end of a transaction.

Constructor Summary

BucketClobStringType()

Method Summary

java.lang.Object	deepCopy(java.lang.Object value)
boolean	equals(java.lang.Object x, java.lang.Object y)
protected org.springframework.jdbc.support.lob.LobHandler	getLobHandler() Retrieve the configured LobHandler.
boolean	isMutable()
protected boolean	isUseSetClobAsString() Get the UseSetString property.
boolean	isUsingHSQL() Returns ture if we are running with the HSQL hibernate dialect.
boolean	isUsingMySQL() Returns true if we are running with the MySQL hibernate dialect.
boolean	isUsingOracle() Returns true if we are running with the Oracle hibernate dialect.
java.lang.Object	nullSafeGet(java.sql.ResultSet rs, java.lang.String[] names, java.lang.Object owner)
void	nullSafeSet(java.sql.PreparedStatement st, java.lang.Object value, int index)
java.lang.Class	returnedClass()
protected void	setUseSetClobAsString(boolean b) Set the UseSetString property.
int[]	sqlTypes()

Methods inherited from class java.lang.Object

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

Constructor Detail

BucketClobStringType

public BucketClobStringType()

Method Detail

isUsingOracle

public boolean isUsingOracle()

Returns true if we are running with the Oracle hibernate dialect.

Returns:

isUsingHSQL

public boolean isUsingHSQL()

Returns ture if we are running with the HSQL hibernate dialect.

Returns:

isUsingMySQL

public boolean isUsingMySQL()

Returns true if we are running with the MySQL hibernate dialect.

Returns:

getLobHandler

protected org.springframework.jdbc.support.lob.LobHandler getLobHandler()

Retrieve the configured LobHandler. This handler may vary with the hibernate dialect.

Returns:

sqlTypes

public int[] sqlTypes()

Specified by:

sqlTypes in interface net.sf.hibernate.UserType

Returns:

returnedClass

public java.lang.Class returnedClass()

Specified by:

returnedClass in interface net.sf.hibernate.UserType

equals

public boolean equals(java.lang.Object x,
                      java.lang.Object y)

Specified by:

equals in interface net.sf.hibernate.UserType

nullSafeGet

public java.lang.Object nullSafeGet(java.sql.ResultSet rs,
                                    java.lang.String[] names,
                                    java.lang.Object owner)
                             throws java.sql.SQLException

Specified by:

nullSafeGet in interface net.sf.hibernate.UserType

Throws:

java.sql.SQLException

nullSafeSet

public void nullSafeSet(java.sql.PreparedStatement st,
                        java.lang.Object value,
                        int index)
                 throws java.sql.SQLException

Specified by:

nullSafeSet in interface net.sf.hibernate.UserType

Throws:

java.sql.SQLException

deepCopy

public java.lang.Object deepCopy(java.lang.Object value)

Specified by:

deepCopy in interface net.sf.hibernate.UserType

isMutable

public boolean isMutable()

Specified by:

isMutable in interface net.sf.hibernate.UserType

setUseSetClobAsString

protected void setUseSetClobAsString(boolean b)

Set the UseSetString property.

Parameters:

b -

See Also:

useSetClobAsString

isUseSetClobAsString

protected boolean isUseSetClobAsString()

Get the UseSetString property.

Returns:

See Also:

useSetClobAsString