oracle.jbo.server
Class MetaObjectManager

java.lang.Object
oracle.jbo.mom.DefinitionManager
oracle.jbo.server.MetaObjectManager

All Implemented Interfaces:

MetaObjectBase

Direct Known Subclasses:

ContextMetaObjectManager

public class MetaObjectManager

extends DefinitionManager

A static class used for accessing meta-objects.

This class contains references to all Business Componenents for Java meta-objects. These classes are loaded from XML through JNDI calls to the appropriate context, and are also loaded at runtime from jboserver.properties.

Since:

Jdeveloper 3.0

Field Summary

Fields inherited from class oracle.jbo.mom.DefinitionManager

mbValidateName, mContext, mLazyLoading, mSubstituteStat

Fields inherited from interface oracle.jbo.common.MetaObjectBase

TYP_APP_MODULE, TYP_ATTRIBUTE, TYP_ATTRIBUTE_LIST_WITH_DEF, TYP_COMPONENT_OBJECT, TYP_DEF_ANY, TYP_DEF_APP_MODULE, TYP_DEF_ATTRIBUTE, TYP_DEF_COMPONENT_OBJECT, TYP_DEF_DOMAIN, TYP_DEF_ENTITY_ASSOC, TYP_DEF_ENTITY_OBJECT, TYP_DEF_PACKAGE, TYP_DEF_VIEW_LINK, TYP_DEF_VIEW_OBJECT, TYP_DOMAIN, TYP_ENTITY_ASSOC, TYP_ENTITY_OBJECT, TYP_ENTITY_ROW, TYP_ENTITY_ROW_SET, TYP_ENTITY_ROW_SET_ITERATOR, TYP_ENTITY_USAGE, TYP_PACKAGE, TYP_TRANSACTION, TYP_VALIDATOR_TYPE, TYP_VARIABLE, TYP_VARIABLE_WHERE_CLAUSE, TYP_VIEW_CRITERIA, TYP_VIEW_LINK, TYP_VIEW_OBJECT, TYP_VIEW_ROW, TYP_VIEW_ROW_SET, TYP_VIEW_ROW_SET_ITERATOR

Method Summary

protected ContainerDefImpl	createContainerDefObject(boolean topLevel)
static void	createSharedDataHandle()
static java.lang.Object	findMetaObject(java.lang.String metaObjectName, int exId, java.lang.Class claz, boolean sub)
com.sun.java.util.collections.ArrayList	getCustomMessageBundlesList()
protected java.lang.String	getDefaultMOMCacheScope() Return an indication as to the default scope of the MOM cache (to be used if the application's adf-config.xml does not explicitly indicate a value).
protected java.lang.String	getDynamicPackageName()
static java.lang.String	getLatestXMLVersion()
static DefXMLParser	getParser() Deprecated. since 10.1.3. See DefinitionManager.getJboXMLDoc().
protected java.lang.String	getProjectFileExtension()
static java.util.Properties	getServerProperties() Gets the server properties loaded from oracle.jbo.server.jboserver.properties.
static SharedHandle	getSharedHandle() Get the Shared Handle
static java.lang.String	getSharedHandleName() Get the Shared handle name
static boolean	getSharedHandleStatus() Get the Shared Handle Status
static MetaObjectManager	getSingleton()
java.lang.Long	getVersionTimestamp()
java.lang.String[]	getXMLVersionArray()
protected void	initManager() Get the Hashtable for the XML JBOElements
protected void	initSubExtendsPropForProject() Set the substitute extends prop for Project For 8i, we treat it differently than other deployments
static void	insertMetaObject(java.lang.String metaObjectName, java.lang.Object metaObject) Inserts the metaobject into the MOM cache.
static boolean	isLazyLoading() Gets the value of the JSP lazy loading flag.
static DefElement	loadBaseElement(java.lang.String metaObjectName)
static java.lang.Object	loadFromSharedDataHandle(java.lang.String metaObjectName) Returns the def object from HashTable
DefinitionObject	loadFromXML(java.lang.String metaObjectName, DefElement elem, java.lang.String objType) Loads the XML metadata stream and returns a Def Object
protected java.lang.Object	loadLazyFromSharedObject(java.lang.String metaObjectName, ContainerDefImpl parent, boolean loadParent, boolean sub) Main function in MOM to load a object from XMLStream through Shared MetaData
static oracle.jbo.server.PackageDefImpl	loadProject(java.lang.String projectName)
protected java.lang.Object	loadSpecialObjects(DefElement elem, java.lang.String metaObjectName, java.lang.String objType)
static java.lang.Object	loadXMLFromSharedDataHandle(java.lang.String metaObjectName) Returns the JBOElementImpl object from HashTable
static java.lang.Object	removeMetaObject(java.lang.String metaObjectName) Removes the Meta Object from the statically maintained list of Meta Objects.
static void	set8iProjectSub(java.lang.String projectName)
static void	setLazyLoading(boolean lazyLoading) Sets the value of the JSP lazy loading flag.
static void	setSharedHandleName(java.lang.String handleName) Set the Shared handle name, App module calls this function for the metaobjects
protected boolean	usesMDSByDefault() Return an indication as to whether this DefinitionManager instance should use MDS if the application's adf-config.xml does not explicitly indicate true or false.

Methods inherited from class oracle.jbo.mom.DefinitionManager

dumpDefObjInfo, dumpMOM, dumpMOM, findContainer, findDefinitionObject, findDefinitionObject, findDefinitionObject, findDefinitionObjectDontCheckName, findLoadedObject, findSubstituteName, getBooleanFlag, getContext, getCurrentApplicationMap, getDefinitionObjectsMap, getDynamicObjectsContainer, getJboDTD, getJboXMLDoc, getLatestDTDVersion, getLazyLoadProp, getMapLock, getMOMCacheScope, getMOMProperties, getStatementMonitor, initListener, insertDefinition, insertDefinition, is323Compatible, is903Compatible, isLazyLoadingMode, loadBaseXMLElement, loadContext, loadDefElement, loadLazyDefinitionObject, loadProjectDefinition, loadProjectDefinition, loadProjectDefinition, loadProjectDefinition, removeAllDefinitions, removeDefinition, reportVMProperties, setContextImpl, setLazyLoadingMode, setNameCheck, usesMDS

Methods inherited from class java.lang.Object

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

Method Detail

getSingleton

public static MetaObjectManager getSingleton()

getParser

public static DefXMLParser getParser()

Deprecated. since 10.1.3. See DefinitionManager.getJboXMLDoc().

Gets the XML parser.

Returns:

the XMLParser.

initManager

protected void initManager()

Get the Hashtable for the XML JBOElements

Overrides:

initManager in class DefinitionManager

setSharedHandleName

public static void setSharedHandleName(java.lang.String handleName)

Set the Shared handle name, App module calls this function for the metaobjects

set8iProjectSub

public static void set8iProjectSub(java.lang.String projectName)

getSharedHandleName

public static java.lang.String getSharedHandleName()

Get the Shared handle name

getSharedHandleStatus

public static boolean getSharedHandleStatus()

Get the Shared Handle Status

getSharedHandle

public static SharedHandle getSharedHandle()

Get the Shared Handle

isLazyLoading

public static boolean isLazyLoading()

Gets the value of the JSP lazy loading flag.

Returns:

the value of the lazy loading flag.

setLazyLoading

public static void setLazyLoading(boolean lazyLoading)

Sets the value of the JSP lazy loading flag.

Parameters:

lazyLoading - the new value of the lazy loading flag.

insertMetaObject

public static void insertMetaObject(java.lang.String metaObjectName,
                                    java.lang.Object metaObject)

Inserts the metaobject into the MOM cache. The metaobject is marked as not ageable!

Parameters:

metaObjectName - The fully qualified Name of the metaobject

metaObject - The metaobject itself

removeMetaObject

public static java.lang.Object removeMetaObject(java.lang.String metaObjectName)

Removes the Meta Object from the statically maintained list of Meta Objects.

Parameters:

metaObjectName - The fully qualified Name of the Meta Object

Returns:

The Meta Object that is removed. Returns null if no meta object exists.

loadLazyFromSharedObject

protected java.lang.Object loadLazyFromSharedObject(java.lang.String metaObjectName,
                                                    ContainerDefImpl parent,
                                                    boolean loadParent,
                                                    boolean sub)

Main function in MOM to load a object from XMLStream through Shared MetaData

Specified by:

loadLazyFromSharedObject in class DefinitionManager

loadFromXML

public DefinitionObject loadFromXML(java.lang.String metaObjectName,
                                    DefElement elem,
                                    java.lang.String objType)

Loads the XML metadata stream and returns a Def Object

Specified by:

loadFromXML in class DefinitionManager

Parameters:

metaObjectName - name of the metaobject, for diagnostic purposes.

elem - an XML Stream as a DefElement object.

objType - object type Tag.

Returns:

a defObject, which is a JBO Object extending DefinitionObject

loadProject

public static oracle.jbo.server.PackageDefImpl loadProject(java.lang.String projectName)

loadFromSharedDataHandle

public static java.lang.Object loadFromSharedDataHandle(java.lang.String metaObjectName)

Returns the def object from HashTable

Returns:

defObject: name of the Def Object (packagename.objName)

loadXMLFromSharedDataHandle

public static java.lang.Object loadXMLFromSharedDataHandle(java.lang.String metaObjectName)

Returns the JBOElementImpl object from HashTable

Returns:

DefElement: name of the Def Object (packagename.objName)

findMetaObject

public static java.lang.Object findMetaObject(java.lang.String metaObjectName,
                                              int exId,
                                              java.lang.Class claz,
                                              boolean sub)

loadBaseElement

public static DefElement loadBaseElement(java.lang.String metaObjectName)

initSubExtendsPropForProject

protected void initSubExtendsPropForProject()

Set the substitute extends prop for Project For 8i, we treat it differently than other deployments

Overrides:

initSubExtendsPropForProject in class DefinitionManager

getServerProperties

public static java.util.Properties getServerProperties()

Gets the server properties loaded from oracle.jbo.server.jboserver.properties.

Returns:

the server properties.

createSharedDataHandle

public static void createSharedDataHandle()
                                   throws javax.naming.NamingException

Throws:

javax.naming.NamingException

getDynamicPackageName

protected java.lang.String getDynamicPackageName()

Specified by:

getDynamicPackageName in class DefinitionManager

getProjectFileExtension

protected java.lang.String getProjectFileExtension()

Specified by:

getProjectFileExtension in class DefinitionManager

loadSpecialObjects

protected java.lang.Object loadSpecialObjects(DefElement elem,
                                              java.lang.String metaObjectName,
                                              java.lang.String objType)

Specified by:

loadSpecialObjects in class DefinitionManager

createContainerDefObject

protected ContainerDefImpl createContainerDefObject(boolean topLevel)

Specified by:

createContainerDefObject in class DefinitionManager

getXMLVersionArray

public java.lang.String[] getXMLVersionArray()

Specified by:

getXMLVersionArray in class DefinitionManager

getLatestXMLVersion

public static java.lang.String getLatestXMLVersion()

getCustomMessageBundlesList

public com.sun.java.util.collections.ArrayList getCustomMessageBundlesList()

getVersionTimestamp

public final java.lang.Long getVersionTimestamp()

getDefaultMOMCacheScope

protected java.lang.String getDefaultMOMCacheScope()

Description copied from class: DefinitionManager

Return an indication as to the default scope of the MOM cache (to be used if the application's adf-config.xml does not explicitly indicate a value). The expected values are "request", "session", or "application" (case-sensitive). Any other value is treated as "application". This default value is currently obtained from a system property. It should perhaps be obtained from a JVM-wide BC4J property. (But see comments in JUMetaObjectManager.usesMDSByDefault()).

Specified by:

getDefaultMOMCacheScope in class DefinitionManager

Returns:

Default scope (as explained above).

usesMDSByDefault

protected boolean usesMDSByDefault()

Description copied from class: DefinitionManager

Return an indication as to whether this DefinitionManager instance should use MDS if the application's adf-config.xml does not explicitly indicate true or false. This default value is obtained from a JVM-wide BC4J property. (Actually, that's not currently true for JUMetaObjectManager - see comments in JUMetaObjectManager.usesMDSByDefault()).

Specified by:

usesMDSByDefault in class DefinitionManager

Returns:

Should we use MDS for applications that don't specify that info in the app's adf-config.xml?