See: Description
| Class | Description |
|---|---|
| BitPostingIndexInputFormat |
An InputFormat, i.e.
|
| CollectionRecordReader<SPLITTYPE extends PositionAwareSplit<?>> |
An abstract RecordReader class which provides methods to read a collection
within the Hadoop framework.
|
| FileCollectionRecordReader |
Record Reader for Hadoop Indexing.
|
| FileSplit |
An instance of org.apache.hadoop.mapred.FileSplit that provides a default constructor.
|
| Hadoop_BasicSinglePassIndexer |
Single Pass MapReduce indexer.
|
| Hadoop_BlockSinglePassIndexer |
A MapReduce single-pass indexer that records term positions (blocks).
|
| HadoopRunIteratorFactory |
Creates a new Iterator over runs which can be used within the Hadoop framework.
|
| HadoopRunPostingIterator |
This class allows the iteration of over a postings within a run within
the Hadoop framwork.
|
| HadoopRunsMerger |
This is the main merger class for Hadoop runs.
|
| HadoopRunWriter |
RunWriter for the MapReduce indexer.
|
| IDComparator |
Compares String objects.
|
| Inv2DirectMultiReduce |
This class inverts an inverted index into a direct index, making use of a single MapReduce job.
|
| Inv2DirectMultiReduce.ByDocidPartitioner<K> |
Partitioner partitioning by docid
|
| Inv2DirectMultiReduce.ByDocidPartitionerPosting |
Partitioner partitioning by docid
|
| Inv2DirectMultiReduce.Inv2DirectMultiReduceJob |
This class performs contains setup for the MR job.
|
| MapData |
Storage class for information about each Map.
|
| MapEmittedPostingList |
Sub-Class of WritableByteArray, i.e.
|
| MultiFileCollectionInputFormat |
Input Format Class for Hadoop Indexing.
|
| MultiFileSplit |
An instance of org.apache.hadoop.mapred.MultiFileSplit that provides a default constructor.
|
| PositionAwareSplit<T extends org.apache.hadoop.mapred.InputSplit> |
An InputSplit, i.e.
|
| SplitAwareWrapper<T> |
Ironically a wrapper around a wrapper.
|
| SplitEmittedTerm |
Represents a Term key used during MapReduce Indexing.
|
| SplitEmittedTerm.SETPartitioner |
Partitions SplitEmittedTerms by split that they came from.
|
| SplitEmittedTerm.SETPartitionerLowercaseAlphaTerm |
Partitions SplitEmittedTerms by term.
|
| SplitEmittedTerm.SETRawComparatorTerm |
Sorter by term only
|
| SplitEmittedTerm.SETRawComparatorTermSplitFlush |
A comparator for comparing different split emitted terms.
|
| WritableByteArray |
Represents a Writable Posting List.
|
Provides classes implemeting the Hadoop MapReduce indexing in Terrier.
Terrier Information Retrieval Platform4.1. Copyright © 2004-2015, University of Glasgow