edu.stanford.nlp.database
Class SLJDB

java.lang.Object
  |
  +--edu.stanford.nlp.database.AbstractSimpleDatabase
        |
        +--edu.stanford.nlp.database.SLJDB

All Implemented Interfaces:

SimpleDatabase

public class SLJDB

extends AbstractSimpleDatabase

Simple Lightweight Java Database. SimpleDatabase Wrapper for JDBM: Sourcefourge Open Source Java clone for GDBM.

Constructor Summary

SLJDB(String file)

Method Summary

void	close() Closes the database for read and write
Object	get(Object key) Gets Object from database
Iterator	keys() Returns an Iterator over keys in database
void	open() Opens the database for read and write
void	put(Object key, Object value) Inserts Object into database
void	remove(Object key) Removes Object from database
int	size() Returns number of elements in database (slow implementation).
String	toString() Returns String representation of database in the form below.
String	toXMLString() Returns an XML representation of database.
Iterator	values() Returns an Iterator over values in database

Methods inherited from class edu.stanford.nlp.database.AbstractSimpleDatabase

toVerboseString, toVerboseXMLString

Methods inherited from class java.lang.Object

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

Constructor Detail

SLJDB

public SLJDB(String file)
      throws IOException

Method Detail

open

public void open()
          throws IOException

Opens the database for read and write

IOException

close

public void close()
           throws IOException

Closes the database for read and write

IOException

size

public int size()

Returns number of elements in database (slow implementation). Warning: does not store size, so in order to find size, it iterates through the entire database, which could be long.

put

public void put(Object key,
                Object value)
         throws IOException

Description copied from interface: SimpleDatabase

Inserts Object into database

IOException

get

public Object get(Object key)
           throws IOException

Description copied from interface: SimpleDatabase

Gets Object from database

IOException

remove

public void remove(Object key)
            throws IOException

Description copied from interface: SimpleDatabase

Removes Object from database

IOException

toString

public String toString()

Returns String representation of database in the form below. filename: sample.db
type: SLJDB

Specified by:

toString in interface SimpleDatabase

Overrides:

toString in class Object

toXMLString

public String toXMLString()

Description copied from interface: SimpleDatabase

Returns an XML representation of database. Often it will be of the form: /nlp/sdkamvar/sample.db SLJDB

keys

public Iterator keys()

Description copied from interface: SimpleDatabase

Returns an Iterator over keys in database

values

public Iterator values()

Description copied from interface: SimpleDatabase

Returns an Iterator over values in database