de.pangaea.metadataportal.search
Class IndexReaderWarmerImpl

java.lang.Object
  org.apache.lucene.index.IndexWriter.IndexReaderWarmer
      de.pangaea.metadataportal.search.IndexReaderWarmerImpl

public final class IndexReaderWarmerImpl
extends IndexWriter.IndexReaderWarmer

This class warms IndexReaders after reopens. It uses some default queries and sort options from the config file But SearchService can also add extra Query instances during operation which are maintained by usage count.

Author:

Uwe Schindler

Field Summary

static int

DEFAULT_WARM_LIFE_QUERIES

Constructor Summary

IndexReaderWarmerImpl(Config config)

Method Summary

void	addFixedQuery(Query q, Sort s) This should only be called after ctor initialization to specify fixed queries to execute
void	addLifeQuery(Query q, Sort s) Registers a user-query in the LRU list.
protected void	runQuery(IndexSearcher searcher, de.pangaea.metadataportal.search.IndexReaderWarmerImpl.Entry e)
void	warm(IndexReader reader)

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT_WARM_LIFE_QUERIES

public static final int DEFAULT_WARM_LIFE_QUERIES

See Also:

Constant Field Values

Constructor Detail

IndexReaderWarmerImpl

public IndexReaderWarmerImpl(Config config)

Method Detail

addFixedQuery

public void addFixedQuery(Query q,
                          Sort s)

This should only be called after ctor initialization to specify fixed queries to execute

addLifeQuery

public void addLifeQuery(Query q,
                         Sort s)

Registers a user-query in the LRU list. If a warmup is currently running it does nothing for performance reasons

runQuery

protected void runQuery(IndexSearcher searcher,
                        de.pangaea.metadataportal.search.IndexReaderWarmerImpl.Entry e)
                 throws IOException

Throws:

IOException

warm

public void warm(IndexReader reader)
          throws IOException

Specified by:

warm in class IndexWriter.IndexReaderWarmer

Throws:

IOException