org.apache.jackrabbit.oak.commons.sort

Class StringSort

java.lang.Object

org.apache.jackrabbit.oak.commons.sort.StringSort

All Implemented Interfaces:

Closeable, AutoCloseable, Iterable<String>

public class StringSort
extends Object
implements Iterable<String>, Closeable

Utility class to store a list of string and perform sort on that. For small size the list would be maintained in memory. If the size crosses the required threshold then the sorting would be performed externally

Field Summary

Fields

Modifier and Type	Field and Description
static int	BATCH_SIZE

Constructor Summary

Constructors

Constructor and Description
StringSort(int overflowToDiskThreshold, Comparator<String> comparator)

Method Summary

Methods

Modifier and Type	Method and Description
void	add(String id)
void	close()
Iterator<String>	getIds()
long	getSize()
boolean	isEmpty()
Iterator<String>	iterator()
void	sort()
boolean	usingFile()

Methods inherited from class java.lang.Object

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

Field Detail

BATCH_SIZE

public static final int BATCH_SIZE

See Also:

Constant Field Values

Constructor Detail

StringSort

public StringSort(int overflowToDiskThreshold,
          Comparator<String> comparator)

Method Detail

add

public void add(String id)
         throws IOException

Throws:

IOException

sort

public void sort()
          throws IOException

Throws:

IOException

getIds

public Iterator<String> getIds()
                        throws IOException

Throws:

IOException

getSize

public long getSize()

isEmpty

public boolean isEmpty()

usingFile

public boolean usingFile()

close

public void close()
           throws IOException

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable

Throws:

IOException

iterator

public Iterator<String> iterator()

Specified by:

iterator in interface Iterable<String>