com.db4o.internal

Class StoredClassImpl

java.lang.Object

com.db4o.internal.StoredClassImpl

All Implemented Interfaces:

StoredClass

public class StoredClassImpl
extends java.lang.Object
implements StoredClass

Constructor Summary

Constructors

Constructor and Description
StoredClassImpl(Transaction transaction, ClassMetadata classMetadata)

Method Summary

Methods

Modifier and Type	Method and Description
boolean	equals(java.lang.Object obj)
long[]	getIDs() returns an array of IDs of all stored object instances of this stored class.
java.lang.String	getName() returns the name of this stored class.
StoredClass	getParentStoredClass() returns the StoredClass for the parent of the class, this StoredClass represents.
StoredField[]	getStoredFields() returns all stored fields of this stored class.
boolean	hasClassIndex() returns true if this StoredClass has a class index.
int	hashCode()
int	instanceCount() Returns the number of instances of this class that have been persisted to the database, as seen by the transaction (container) that produces this StoredClass instance.
void	rename(java.lang.String newName) renames this stored class.
StoredField	storedField(java.lang.String name, java.lang.Object type) returns an existing stored field of this stored class.
java.lang.String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

StoredClassImpl

public StoredClassImpl(Transaction transaction,
               ClassMetadata classMetadata)

Method Detail

getIDs

public long[] getIDs()

Description copied from interface: StoredClass

returns an array of IDs of all stored object instances of this stored class.

Specified by:

getIDs in interface StoredClass

getName

public java.lang.String getName()

Description copied from interface: StoredClass

returns the name of this stored class.

Specified by:

getName in interface StoredClass

getParentStoredClass

public StoredClass getParentStoredClass()

Description copied from interface: StoredClass

returns the StoredClass for the parent of the class, this StoredClass represents.

Specified by:

getParentStoredClass in interface StoredClass

getStoredFields

public StoredField[] getStoredFields()

Description copied from interface: StoredClass

returns all stored fields of this stored class.

Specified by:

getStoredFields in interface StoredClass

hasClassIndex

public boolean hasClassIndex()

Description copied from interface: StoredClass

returns true if this StoredClass has a class index.

Specified by:

hasClassIndex in interface StoredClass

rename

public void rename(java.lang.String newName)

Description copied from interface: StoredClass

renames this stored class.

After renaming one or multiple classes the ObjectContainer has to be closed and reopened to allow internal caches to be refreshed.

.NET: As the name you should provide [Classname, Assemblyname]

Specified by:

rename in interface StoredClass

Parameters:

newName - the new name

storedField

public StoredField storedField(java.lang.String name,
                      java.lang.Object type)

Description copied from interface: StoredClass

returns an existing stored field of this stored class.

Specified by:

storedField in interface StoredClass

Parameters:

name - the name of the field

type - the type of the field. There are four possibilities how to supply the type:
- a Class object. (.NET: a Type object)
- a fully qualified classname.
- any object to be used as a template.

- null, if the first found field should be returned.

Returns:

the StoredField

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

equals

public boolean equals(java.lang.Object obj)

Overrides:

equals in class java.lang.Object

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

instanceCount

public int instanceCount()

Description copied from interface: StoredClass

Returns the number of instances of this class that have been persisted to the database, as seen by the transaction (container) that produces this StoredClass instance.

Specified by:

instanceCount in interface StoredClass

Returns:

The number of instances