org.eclipse.persistence.sdo.helper
Class SDOHelperContext

java.lang.Object
  org.eclipse.persistence.sdo.helper.SDOHelperContext

All Implemented Interfaces:

HelperContext

Direct Known Subclasses:

JAXBHelperContext

public class SDOHelperContext
extends java.lang.Object
implements HelperContext

INTERNAL: Purpose:

• This class is a reference implementation of an instantiable commonj.sdo.HelperContext.

Responsibilities:

• Provide access to a instances of helper objects.

Use this class in place of the default HelperProvider.DefaultHelperContext implementation.

Since:

Oracle TopLink 11.1.1.0.0

Field Summary

protected CopyHelper	copyHelper
protected DataFactory	dataFactory
protected DataHelper	dataHelper
protected EqualityHelper	equalityHelper
protected TypeHelper	typeHelper
protected XMLHelper	xmlHelper
protected XSDHelper	xsdHelper

Constructor Summary

SDOHelperContext()
The default constructor will use the current thread's context class loader.

SDOHelperContext(java.lang.ClassLoader aClassLoader)
This constructor creates the helper instances.

Method Summary

ExternalizableDelegator.Resolvable	createResolvable()
ExternalizableDelegator.Resolvable	createResolvable(java.lang.Object target)
CopyHelper	getCopyHelper() Gets the CopyHelper to use in this context.
DataFactory	getDataFactory() Gets the DataFactory to use in this context.
DataHelper	getDataHelper() Gets the DataHelper to use in this context.
EqualityHelper	getEqualityHelper() Gets the EqualityHelper to use in this context.
static HelperContext	getHelperContext() INTERNAL: Return the helper context for a given key.
TypeHelper	getTypeHelper() Gets the TypeHelper to use in this context.
XMLHelper	getXMLHelper() Gets the XMLHelper to use in this context.
XSDHelper	getXSDHelper() Gets the XSDHelper to use in this context.
protected void	initialize(java.lang.ClassLoader aClassLoader)
void	makeDefaultContext() ADVANCED Promote this helper context to be the default or global one.
static void	putHelperContext(java.lang.ClassLoader key, HelperContext value) INTERNAL: Put a ClassLoader/HelperContext key/value pair in the Thread HelperContext map.
static void	removeHelperContext(java.lang.ClassLoader key) INTERNAL: Remove a ClassLoader/HelperContext key/value pair from the Thread HelperContext map.
void	reset() Reset the Type,XML and XSD helper instances.

Methods inherited from class java.lang.Object

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

Field Detail

copyHelper

protected CopyHelper copyHelper

dataFactory

protected DataFactory dataFactory

dataHelper

protected DataHelper dataHelper

equalityHelper

protected EqualityHelper equalityHelper

xmlHelper

protected XMLHelper xmlHelper

typeHelper

protected TypeHelper typeHelper

xsdHelper

protected XSDHelper xsdHelper

Constructor Detail

SDOHelperContext

public SDOHelperContext()

The default constructor will use the current thread's context class loader.

SDOHelperContext

public SDOHelperContext(java.lang.ClassLoader aClassLoader)

This constructor creates the helper instances.

Parameters:

aClassLoader -

Method Detail

initialize

protected void initialize(java.lang.ClassLoader aClassLoader)

reset

public void reset()

Reset the Type,XML and XSD helper instances.

getCopyHelper

public CopyHelper getCopyHelper()

Description copied from interface: HelperContext

Gets the CopyHelper to use in this context.

Specified by:

getCopyHelper in interface HelperContext

Returns:

a CopyHelper object

getDataFactory

public DataFactory getDataFactory()

Description copied from interface: HelperContext

Gets the DataFactory to use in this context.

Specified by:

getDataFactory in interface HelperContext

Returns:

a DataFactory object

getDataHelper

public DataHelper getDataHelper()

Description copied from interface: HelperContext

Gets the DataHelper to use in this context.

Specified by:

getDataHelper in interface HelperContext

Returns:

a DataHelper object

getEqualityHelper

public EqualityHelper getEqualityHelper()

Description copied from interface: HelperContext

Gets the EqualityHelper to use in this context.

Specified by:

getEqualityHelper in interface HelperContext

Returns:

an EqualityHelper object

getTypeHelper

public TypeHelper getTypeHelper()

Description copied from interface: HelperContext

Gets the TypeHelper to use in this context.

Specified by:

getTypeHelper in interface HelperContext

Returns:

a TypeHelper object

getXMLHelper

public XMLHelper getXMLHelper()

Description copied from interface: HelperContext

Gets the XMLHelper to use in this context.

Specified by:

getXMLHelper in interface HelperContext

Returns:

an XMLHelper object

getXSDHelper

public XSDHelper getXSDHelper()

Description copied from interface: HelperContext

Gets the XSDHelper to use in this context.

Specified by:

getXSDHelper in interface HelperContext

Returns:

an XSDHelper object

createResolvable

public ExternalizableDelegator.Resolvable createResolvable()

createResolvable

public ExternalizableDelegator.Resolvable createResolvable(java.lang.Object target)

putHelperContext

public static void putHelperContext(java.lang.ClassLoader key,
                                    HelperContext value)

INTERNAL: Put a ClassLoader/HelperContext key/value pair in the Thread HelperContext map. If Thread.currentThread().getContextClassLoader() == key during getHelperContext() call then the HelperContext (value) will be returned. This method will overwrite an existing entry in the map with the same ClassLoader key.

Parameters:

key - class loader

value - helper context

removeHelperContext

public static void removeHelperContext(java.lang.ClassLoader key)

INTERNAL: Remove a ClassLoader/HelperContext key/value pair from the Thread HelperContext map.

Parameters:

key - class loader

getHelperContext

public static HelperContext getHelperContext()

INTERNAL: Return the helper context for a given key. The key will either be a ClassLoader or a String (representing an application name). A new context will be created and put in the map if none exists for the given key. The key is assumed to be non-null - getDelegateKey should always return either a string representing the application name (for WLS) or a class loader. This is relevant since 'putIfAbsent' will throw a null pointer exception if the key is null.

makeDefaultContext

public void makeDefaultContext()

ADVANCED Promote this helper context to be the default or global one. This will completely replace the existing default context including all types and properties defined.