Package com.atlassian.jira.index

Class DefaultIndexEngine

java.lang.Object

com.atlassian.jira.index.DefaultIndexEngine

All Implemented Interfaces:

Closeable, Closeable, AutoCloseable

@ThreadSafe
public class DefaultIndexEngine
extends Object

Thread-safe container that manages our current IndexSearcher and Writer.

Gets passed searcher and writer factories that create new instances of these when required.

getSearcher() - returns an IndexSearcher with a frozen view of the current index; the client is responsible for closing the IndexSearcher when finished. IndexSearcher are shared between clients. getSearcher() creates a new IndexSearcher only if there was some changes on the index.

Clients which received a UnmanagedIndexSearcher via getSearcher() are responsible for closing it via UnmanagedIndexSearcher.close().

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static enum	DefaultIndexEngine.FlushPolicy	How to perform an actual write to the writer.
protected static class	DefaultIndexEngine.WriterReference	Thread-safe holder of the current Writer

Field Summary

Fields inherited from interface com.atlassian.jira.util.Closeable

CLOSE

Method Summary

Modifier and Type	Method	Description
void	clean()
void	close()	Closes this stream and releases any system resources associated with it.
UnmanagedIndexSearcher	getSearcher()
void	write(Index.Operation operation)

Methods inherited from class java.lang.Object

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

Method Details

getSearcher

@Nonnull
public UnmanagedIndexSearcher getSearcher()

clean

public void clean()

write

public void write(@Nonnull
 Index.Operation operation)
           throws IOException

Throws:

IOException

close

public void close()

Description copied from interface: Closeable

Closes this stream and releases any system resources associated with it. If the stream is already closed then invoking this method has no effect.

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Closeable

Specified by:

close in interface Closeable