public abstract class MetaIndexBuilder extends Object implements Closeable
Lookups in the resulting <MetaIndex
are supported in two manners - either by docid, or for specified key
types, by value. In the latter scenario, metadata values are assumed to be unique.
Typical usage during indexing:
MetaIndexBuilder metaBuilder = ... while(collection.nextDocument()) { Document d = collection.getDocument(); metaBuilder.writeDocumentEntry(d.getAllProperties()); }
Constructor and Description |
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MetaIndexBuilder() |
Modifier and Type | Method and Description |
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abstract void |
writeDocumentEntry(Map<String,String> data)
Write out metadata for current document, extracted from specified map
Typically, the MetaIndexBuilder will know which keys from data that
it is interested in.
|
abstract void |
writeDocumentEntry(String[] data)
Write out metadata for current document.
|
public abstract void writeDocumentEntry(Map<String,String> data) throws IOException
IOException
public abstract void writeDocumentEntry(String[] data) throws IOException
IOException
Terrier 4.0. Copyright © 2004-2014 University of Glasgow