org.omegahat.Environment.Databases
Class ReadWriteDatabase

java.lang.Object
  |
  +--org.omegahat.Environment.Databases.ObjectDatabase
        |
        +--org.omegahat.Environment.Databases.ReadWriteDatabase

All Implemented Interfaces:

Activable, Database, DatabaseNotifier, DynamicFieldAccessInt, MergableInt, Named, ReadWriteDatabaseInt, java.io.Serializable, Subsettable

Direct Known Subclasses:

HomogeneousTypedDatabase, MethodsCollection, TypedDatabase

public class ReadWriteDatabase

extends ObjectDatabase

implements ReadWriteDatabaseInt, java.io.Serializable

Database that supports the specification of individual variables being read-only or read and writable.

See Also:

Serialized Form

Field Summary

protected java.util.Vector

permissions

Fields inherited from class org.omegahat.Environment.Databases.ObjectDatabase

listeners, name, state, table, user

Fields inherited from interface org.omegahat.Environment.Databases.Database

ALL, ASSIGN, ATTACH, DETACH, NULL_ENTRY, READ, READ_WRITE, REMOVE

Fields inherited from interface org.omegahat.Environment.Databases.Activable

ACTIVE, INACTIVE

Constructor Summary

ReadWriteDatabase()

ReadWriteDatabase(int size)

ReadWriteDatabase(java.lang.String name)

Method Summary

boolean	assign(java.lang.String name, java.lang.Object val) assigns obj to the database under name.
java.util.Vector	permissions()
java.util.Vector	permissions(java.util.Vector v)
boolean	readOnly(java.lang.String name)
boolean	readOnly(java.lang.String name, boolean val)
java.lang.Object	remove(java.lang.String name) remove the object from the database

Methods inherited from class org.omegahat.Environment.Databases.ObjectDatabase

addAssignListener, addAttachListener, addDetachListener, addListener, addRemoveListener, assign, attach, clear, detach, exists, get, getDynamicField, getName, getState, getTable, merge, merge, notify, objects, put, readOnly, readOnly, readSerialized, readSerialized, readSerialized, remove, setDynamicField, setName, setState, setTable, size, subset, table, table

Methods inherited from class java.lang.Object

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

Field Detail

permissions

protected java.util.Vector permissions

Constructor Detail

ReadWriteDatabase

public ReadWriteDatabase(java.lang.String name)

ReadWriteDatabase

public ReadWriteDatabase(int size)

ReadWriteDatabase

public ReadWriteDatabase()

Method Detail

assign

public boolean assign(java.lang.String name,
                      java.lang.Object val)
               throws java.lang.Exception

Description copied from interface: Database

assigns obj to the database under name.

Overrides:

assign in class ObjectDatabase

Following copied from interface: org.omegahat.Environment.Databases.Database

Parameters:

obj - any object, including null

name - a string (preferably non-empty) to locate the object in the database.

remove

public java.lang.Object remove(java.lang.String name)

Description copied from interface: Database

remove the object from the database

Overrides:

remove in class ObjectDatabase

Following copied from interface: org.omegahat.Environment.Databases.Database

Parameters:

name - any string, matching the one used in a previous assignment.

readOnly

public boolean readOnly(java.lang.String name)

Specified by:

readOnly in interface ReadWriteDatabaseInt

readOnly

public boolean readOnly(java.lang.String name,
                        boolean val)

Specified by:

readOnly in interface ReadWriteDatabaseInt

permissions

public java.util.Vector permissions()

permissions

public java.util.Vector permissions(java.util.Vector v)