oracle.jbo.server
Class MetaObjectManager

java.lang.Object
  |
  +--oracle.jbo.server.MetaObjectManager

public final class MetaObjectManager

extends java.lang.Object

implements MetaObjectBase

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

Fields inherited from interface oracle.jbo.common.MetaObjectBase

TYP_APP_MODULE, TYP_ATTRIBUTE, TYP_COMPONENT_OBJECT, 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_PACKAGE, TYP_VALIDATOR_TYPE, TYP_VIEW_LINK, TYP_VIEW_OBJECT, TYP_VIEW_ROW, TYP_VIEW_ROW_SET, TYP_VIEW_ROW_SET_ITERATOR

Method Summary

static void	createSharedDataHandle()
static javax.naming.Context	getContext() Gets the context, an instance of the context factory.
static java.util.Hashtable	getMetaObjects() Get the Hashtable for the metaobjects
static oracle.jbo.server.xml.JboXMLDoc	getParser() Gets the XML parser.
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 java.util.Hashtable	getXMLMetaObjects() Get the Hashtable for the XML JBOElements
static void	init() static { init(); }
static boolean	isLazyLoading() Gets the value of the JSP lazy loading flag.
static oracle.jbo.server.xml.JboElementImpl	loadBaseElement(java.lang.String metaObjectName)
static void	loadContext(java.lang.String cusContextFactory, java.lang.String initContext) Allows the application to change the context factory and default context at runtime.
static java.lang.Object	loadFromSharedDataHandle(java.lang.String metaObjectName) Returns the def object from HashTable
static oracle.jbo.server.DefObject	loadFromXML(java.lang.String tmpXMLFileName, oracle.jbo.server.xml.JboElementImpl elem, java.lang.String objType) Loads the XML metadata stream and returns a Def Object
static oracle.jbo.server.PackageDefImpl	loadProject(java.lang.String projectName) Finds the named package definition from the statically maintained list of meta-objects.
static java.lang.Object	loadXMLFromSharedDataHandle(java.lang.String metaObjectName) Returns the JBOElementImpl object from HashTable
static void	reportVMProperties() Diagnostic method which reports some useful VM properties throught the diagnostic stream
static void	set8iProjectSub(java.lang.String projectName)
static void	setContextImpl(javax.naming.Context jndiContext) Set the JNDI context through API Call
static void	setLazyLoading(boolean lazyLoading) Sets the value of the JSP lazy loading flag.
static void	setProperty(java.lang.String propname, java.lang.String propval)
static void	setSharedHandleName(java.lang.String handleName) Set the Shared handle name, App module calls this function for the metaobjects

Methods inherited from class java.lang.Object

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

Method Detail

getParser

public static oracle.jbo.server.xml.JboXMLDoc getParser()

Gets the XML parser.

Returns:

the XMLParser.

getMetaObjects

public static java.util.Hashtable getMetaObjects()

Get the Hashtable for the metaobjects

getXMLMetaObjects

public static java.util.Hashtable getXMLMetaObjects()

Get the Hashtable for the XML JBOElements

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)

setContextImpl

public static void setContextImpl(javax.naming.Context jndiContext)

Set the JNDI context through API Call

Parameters:

Context - Initial Context Impl

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

init

public static void init()

static { init(); }

setProperty

public static void setProperty(java.lang.String propname,
                               java.lang.String propval)

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.

loadFromXML

public static oracle.jbo.server.DefObject loadFromXML(java.lang.String tmpXMLFileName,
                                                      oracle.jbo.server.xml.JboElementImpl elem,
                                                      java.lang.String objType)

Loads the XML metadata stream and returns a Def Object

Parameters:

tmpXMLFileName - name of the temporary XML file.

elem - an XML Stream as a JboElementImpl object.

objType - Object type Tag.

Returns:

a defObject, which is a JBO Object extending DefObject

loadProject

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

Finds the named package definition from the statically maintained list of meta-objects.

Parameters:

projectName - the fully-qualified name of the package.

Returns:

the named package, or null if no package exists.

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:

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

loadContext

public static void loadContext(java.lang.String cusContextFactory,
                               java.lang.String initContext)

Allows the application to change the context factory and default context at runtime.

Parameters:

cusContextFactory - the name of the new custom context factory. if null the default is restored.

initContext - the name of the new default context. if null the default is restored.

getContext

public static javax.naming.Context getContext()

Gets the context, an instance of the context factory. Applications can use the context to specify their own bindings for business meta-objects, and can fetch these objects from the context.

Returns:

the context.

getServerProperties

public static java.util.Properties getServerProperties()

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

Returns:

the server properties.

loadBaseElement

public static oracle.jbo.server.xml.JboElementImpl loadBaseElement(java.lang.String metaObjectName)

createSharedDataHandle

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

reportVMProperties

public static void reportVMProperties()

Diagnostic method which reports some useful VM properties throught the diagnostic stream