org.teiid.translator.object

Class ObjectMaterializeLifeCycle

java.lang.Object

org.teiid.translator.object.ObjectMaterializeLifeCycle

public class ObjectMaterializeLifeCycle
extends Object

The ObjectMaterializeLifeCycle is used to control life cycle behavior that needs to be performed at the different stages of when object materialization is being performed.

Author:

vanhalbert

Field Summary

Fields

Modifier and Type	Field and Description
static String	AFTER_NATIVE_QUERY_PREFIX
static String	BEFORE_NATIVE_QUERY_PREFIX

Constructor Summary

Constructors

Constructor and Description
ObjectMaterializeLifeCycle(ObjectConnection connection, CacheNameProxy proxy)

Method Summary

Modifier and Type	Method and Description
void	afterMaterialiationOnCache() Call after the actual materialization is performed as the afterLoad lifecycle step.
protected void	beforeMaterialiationOnCache() Called before the actual materialization of the data is performed.
void	cleanup() Called at the end of this specific materialization processing
CacheNameProxy	getCacheNameProxy()
protected ObjectConnection	getConnection()
boolean	isAfter(String nativeQuery) Returns the boolean true if the native query is to be performed in the afterLoad lifecycle step.
boolean	isBefore(String nativeQuery) Returns the boolean true if the native query is to be performed in the beforeLoad lifecycle step.
void	performLifeCycleStep(String nativeQuery)

Methods inherited from class java.lang.Object

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

Field Detail

BEFORE_NATIVE_QUERY_PREFIX

public static String BEFORE_NATIVE_QUERY_PREFIX

AFTER_NATIVE_QUERY_PREFIX

public static String AFTER_NATIVE_QUERY_PREFIX

Constructor Detail

ObjectMaterializeLifeCycle

public ObjectMaterializeLifeCycle(ObjectConnection connection,
                                  CacheNameProxy proxy)

Method Detail

getConnection

protected ObjectConnection getConnection()

getCacheNameProxy

public CacheNameProxy getCacheNameProxy()

performLifeCycleStep

public void performLifeCycleStep(String nativeQuery)
                          throws TranslatorException

Throws:

TranslatorException

beforeMaterialiationOnCache

protected void beforeMaterialiationOnCache()
                                    throws TranslatorException

Called before the actual materialization of the data is performed. This is do the following:

Clear the staging cache Adding key->value entry to AliasCache, if it doesn't exist

Throws:

TranslatorException - if the staging cache cannot be determined or is not available

isBefore

public boolean isBefore(String nativeQuery)

Returns the boolean true if the native query is to be performed in the beforeLoad lifecycle step.

Parameters:

nativeQuery -

Returns:

boolean true if the nativeQuery is for the beforeLoad lifecycle step

afterMaterialiationOnCache

public void afterMaterialiationOnCache()
                                throws TranslatorException

Call after the actual materialization is performed as the afterLoad lifecycle step. The following will be done:

swap the cache names in the AliasCache so that the newly populated staging cache is now the cache used for querying do NOT clear the now old cache, as it can currently be queried.