org.neodatis.odb.core.layers.layer2.meta

Class MetaModel

java.lang.Object

org.neodatis.odb.core.layers.layer2.meta.MetaModel

All Implemented Interfaces:

java.io.Serializable

Direct Known Subclasses:

SessionMetaModel

public abstract class MetaModel
extends java.lang.Object
implements java.io.Serializable

The database meta-model

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
MetaModel()

Method Summary

Modifier and Type	Method and Description
abstract void	addChangedClass(ClassInfo ci) Saves the fact that something has changed in the class (number of objects or last object oid)
void	addClass(ClassInfo classInfo)
void	addClasses(ClassInfoList ciList)
void	clear()
abstract MetaModel	duplicate()
boolean	existClass(java.lang.String fullClassName)
static MetaModel	fromClassInfos(IOdbList<ClassInfo> classInfos) Builds a meta model from a list of class infos
IOdbList<ClassInfo>	getAllClasses()
abstract java.util.Collection<ClassInfo>	getChangedClassInfo()
ClassInfo	getClassInfo(int index)
ClassInfo	getClassInfo(java.lang.String fullClassName, boolean throwExceptionIfDoesNotExist)
ClassInfo	getClassInfoFromId(OID id) Gets the class info from the OID.
java.util.Map<java.lang.String,java.lang.Object>	getHistory()
ClassInfo	getLastClassInfo()
int	getNumberOfClasses()
int	getNumberOfSystemClasses()
int	getNumberOfUserClasses()
IOdbList<ClassInfo>	getPersistentSubclassesOf(java.lang.String fullClassName) Gets all the persistent classes that are subclasses or equal to the parameter class
java.util.Collection<ClassInfo>	getSystemClasses()
java.util.Collection<ClassInfo>	getUserClasses()
boolean	hasChanged()
abstract void	resetChangedClasses()
void	setHasChanged(boolean hasChanged)
ClassInfo	slowGetUserClassInfo(int index) The method is slow nut it is only used in the odb explorer.
int	slowGetUserClassInfoIndex(ClassInfo ci) This method is only used by the odb explorer.
java.lang.String	toString()

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

MetaModel

public MetaModel()

Method Detail

addClass

public void addClass(ClassInfo classInfo)

addClasses

public void addClasses(ClassInfoList ciList)

existClass

public boolean existClass(java.lang.String fullClassName)

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

getAllClasses

public IOdbList<ClassInfo> getAllClasses()

getUserClasses

public java.util.Collection<ClassInfo> getUserClasses()

getSystemClasses

public java.util.Collection<ClassInfo> getSystemClasses()

getNumberOfClasses

public int getNumberOfClasses()

getNumberOfUserClasses

public int getNumberOfUserClasses()

getNumberOfSystemClasses

public int getNumberOfSystemClasses()

getClassInfoFromId

public ClassInfo getClassInfoFromId(OID id)

Gets the class info from the OID.

Parameters:

id -

Returns:

the class info with the OID

getClassInfo

public ClassInfo getClassInfo(java.lang.String fullClassName,
                              boolean throwExceptionIfDoesNotExist)

getLastClassInfo

public ClassInfo getLastClassInfo()

Returns:

The Last class info

slowGetUserClassInfoIndex

public int slowGetUserClassInfoIndex(ClassInfo ci)

This method is only used by the odb explorer. So there is no too much problem with performance issue.

Parameters:

ci -

Returns:

The index of the class info

getClassInfo

public ClassInfo getClassInfo(int index)

Parameters:

index - The index of the class info to get

Returns:

The class info at the specified index

slowGetUserClassInfo

public ClassInfo slowGetUserClassInfo(int index)

The method is slow nut it is only used in the odb explorer.

Parameters:

index -

Returns:

clear

public void clear()

hasChanged

public boolean hasChanged()

setHasChanged

public void setHasChanged(boolean hasChanged)

getChangedClassInfo

public abstract java.util.Collection<ClassInfo> getChangedClassInfo()

resetChangedClasses

public abstract void resetChangedClasses()

addChangedClass

public abstract void addChangedClass(ClassInfo ci)

Saves the fact that something has changed in the class (number of objects or last object oid)

Parameters:

ci -

getHistory

public java.util.Map<java.lang.String,java.lang.Object> getHistory()

fromClassInfos

public static MetaModel fromClassInfos(IOdbList<ClassInfo> classInfos)

Builds a meta model from a list of class infos

Parameters:

classInfos -

Returns:

The new Metamodel

getPersistentSubclassesOf

public IOdbList<ClassInfo> getPersistentSubclassesOf(java.lang.String fullClassName)

Gets all the persistent classes that are subclasses or equal to the parameter class

Parameters:

fullClassName -

Returns:

The list of class info of persistent classes that are subclasses or equal to the class

duplicate

public abstract MetaModel duplicate()

Returns: