org.terrier.realtime.memory.fields

Class MemoryDocumentIndexFields

java.lang.Object

org.terrier.realtime.memory.MemoryDocumentIndex

org.terrier.realtime.memory.fields.MemoryDocumentIndexFields

All Implemented Interfaces:

Serializable, DocumentIndex, FieldDocumentIndex

public class MemoryDocumentIndexFields
extends MemoryDocumentIndex
implements FieldDocumentIndex

Document index (fields).

Since:

4.0

Author:

Stuart Mackie

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
class	MemoryDocumentIndexFields.DocumentIterator
class	MemoryDocumentIndexFields.DocumentIterator2

Field Summary

Fields inherited from class org.terrier.realtime.memory.MemoryDocumentIndex

docLengths

Constructor Summary

Constructors

Constructor and Description
MemoryDocumentIndexFields() Constructor.

Method Summary

Methods

Modifier and Type	Method and Description
void	addDocument(int length, int[] flengths) Add document length and field lengths to document index.
DocumentIndexEntry	getDocumentEntry(int docid) Get the document index entry based on its docid
int[]	getFieldLengths(int docid) Get the length of each field
Iterator<DocumentIndexEntry>	iterator() Return an iterator over the document index.
Iterator<Map.Entry<Integer,DocumentIndexEntry>>	iteratorOverEntries() Return an iterator over the document index.

Methods inherited from class org.terrier.realtime.memory.MemoryDocumentIndex

addDocument, getDocumentLength, getNumberOfDocuments, setLength

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.terrier.structures.DocumentIndex

getDocumentLength, getNumberOfDocuments

Constructor Detail

MemoryDocumentIndexFields

public MemoryDocumentIndexFields()

Constructor.

Method Detail

addDocument

public void addDocument(int length,
               int[] flengths)

Add document length and field lengths to document index.

getFieldLengths

public int[] getFieldLengths(int docid)

Get the length of each field

Specified by:

getFieldLengths in interface FieldDocumentIndex

getDocumentEntry

public DocumentIndexEntry getDocumentEntry(int docid)

Get the document index entry based on its docid

Specified by:

getDocumentEntry in interface DocumentIndex

Overrides:

getDocumentEntry in class MemoryDocumentIndex

iteratorOverEntries

public Iterator<Map.Entry<Integer,DocumentIndexEntry>> iteratorOverEntries()

Return an iterator over the document index. iterates over Map.Entry, where the key is the integer docid - only used my the Memory index, not the index-on-disk.

Overrides:

iteratorOverEntries in class MemoryDocumentIndex

iterator

public Iterator<DocumentIndexEntry> iterator()

Return an iterator over the document index.

Overrides:

iterator in class MemoryDocumentIndex