org.terrier.realtime.multi

Class MultiMeta

java.lang.Object

org.terrier.realtime.multi.MultiMeta

All Implemented Interfaces:

Closeable, AutoCloseable, MetaIndex

public class MultiMeta
extends Object
implements MetaIndex

A MetaIndex for use with a MultiIndex. It wraps around multiple individual meta indices to make them look like a single structure.

Since:

4.0

Author:

Richard McCreadie, Stuart Mackie

Constructor Summary

Constructors

Constructor and Description
MultiMeta(MetaIndex[] metas, int[] offsets) Constructor.

Method Summary

Methods

Modifier and Type	Method and Description
void	close() Not implemented.
String[]	getAllItems(int docid) Obtain all metadata for specified document.
int	getDocument(String key, String value) Not implemented.
String	getItem(String key, int docid) Obtain metadata of specified type for specified document.
String[]	getItems(String[] keys, int docid) Obtain metadata of specified types for specified document.
String[][]	getItems(String[] keys, int[] docids) Obtain metadata of specified types for specified documents.
String[]	getItems(String key, int[] docids) Obtain metadata of specified type for specified documents.
String[]	getKeys() Returns the keys of this meta index

Methods inherited from class java.lang.Object

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

Constructor Detail

MultiMeta

public MultiMeta(MetaIndex[] metas,
         int[] offsets)

Constructor.

Method Detail

getKeys

public String[] getKeys()

Returns the keys of this meta index

Specified by:

getKeys in interface MetaIndex

getItem

public String getItem(String key,
             int docid)
               throws IOException

Obtain metadata of specified type for specified document.

Specified by:

getItem in interface MetaIndex

Throws:

IOException

getAllItems

public String[] getAllItems(int docid)
                     throws IOException

Obtain all metadata for specified document.

Specified by:

getAllItems in interface MetaIndex

Throws:

IOException

getItems

public String[] getItems(String[] keys,
                int docid)
                  throws IOException

Obtain metadata of specified types for specified document.

Specified by:

getItems in interface MetaIndex

Throws:

IOException

getItems

public String[] getItems(String key,
                int[] docids)
                  throws IOException

Obtain metadata of specified type for specified documents.

Specified by:

getItems in interface MetaIndex

Throws:

IOException

getItems

public String[][] getItems(String[] keys,
                  int[] docids)
                    throws IOException

Obtain metadata of specified types for specified documents.

Specified by:

getItems in interface MetaIndex

Throws:

IOException

getDocument

public int getDocument(String key,
              String value)
                throws IOException

Not implemented.

Specified by:

getDocument in interface MetaIndex

Throws:

IOException

close

public void close()
           throws IOException

Not implemented.

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable

Throws:

IOException