org.mapdb

Class DB.BTreeSetMaker

java.lang.Object

org.mapdb.DB.BTreeSetMaker

Enclosing class:

DB

public class DB.BTreeSetMaker
extends Object

Field Summary

Fields

Modifier and Type	Field and Description
protected boolean	counter
protected Executor	executor
protected String	name
protected int	nodeSize
protected boolean	pumpIgnoreDuplicates
protected int	pumpPresortBatchSize
protected Iterator<?>	pumpSource
protected boolean	standalone

Constructor Summary

Constructors

Constructor and Description
DB.BTreeSetMaker(String name)

Method Summary

Methods

Modifier and Type	Method and Description
DB.BTreeSetMaker	comparator(Comparator<?> comparator) comparator used to sort keys.
DB.BTreeSetMaker	counterEnable() by default collection does not have counter, without counter updates are faster, but entire collection needs to be traversed to count items.
protected BTreeKeySerializer	getSerializer()
<K> NavigableSet<K>	make()
NavigableSet<Long>	makeLongSet() Deprecated. MapDB 1.0 compat, will be removed in 2.1
<K> NavigableSet<K>	makeOrGet()
NavigableSet<String>	makeStringSet() Deprecated. MapDB 1.0 compat, will be removed in 2.1
DB.BTreeSetMaker	nodeSize(int nodeSize) nodeSize maximal size of node, larger node causes overflow and creation of new BTree node.
<K> DB.BTreeSetMaker	pumpIgnoreDuplicates() If source iteretor contains an duplicate key, exception is thrown.
DB.BTreeSetMaker	pumpPresort(int batchSize)
DB.BTreeSetMaker	pumpSource(Iterator<?> source)
DB.BTreeSetMaker	pumpSource(NavigableSet m)
DB.BTreeSetMaker	serializer(BTreeKeySerializer serializer) serializer used to convert keys into/from binary form.
DB.BTreeSetMaker	serializer(Serializer serializer) serializer used to convert keys into/from binary form.
DB.BTreeSetMaker	serializer(Serializer serializer, Comparator comparator) serializer used to convert keys into/from binary form.
protected DB.BTreeSetMaker	standalone()

Methods inherited from class java.lang.Object

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

Field Detail

name

protected final String name

nodeSize

protected int nodeSize

counter

protected boolean counter

pumpSource

protected Iterator<?> pumpSource

pumpPresortBatchSize

protected int pumpPresortBatchSize

pumpIgnoreDuplicates

protected boolean pumpIgnoreDuplicates

standalone

protected boolean standalone

executor

protected Executor executor

Constructor Detail

DB.BTreeSetMaker

public DB.BTreeSetMaker(String name)

Method Detail

nodeSize

public DB.BTreeSetMaker nodeSize(int nodeSize)

nodeSize maximal size of node, larger node causes overflow and creation of new BTree node. Use large number for small keys, use small number for large keys.

counterEnable

public DB.BTreeSetMaker counterEnable()

by default collection does not have counter, without counter updates are faster, but entire collection needs to be traversed to count items.

serializer

public DB.BTreeSetMaker serializer(BTreeKeySerializer serializer)

serializer used to convert keys into/from binary form.

serializer

public DB.BTreeSetMaker serializer(Serializer serializer)

serializer used to convert keys into/from binary form.

serializer

public DB.BTreeSetMaker serializer(Serializer serializer,
                          Comparator comparator)

serializer used to convert keys into/from binary form.

comparator

public DB.BTreeSetMaker comparator(Comparator<?> comparator)

comparator used to sort keys.

getSerializer

protected BTreeKeySerializer getSerializer()

pumpSource

public DB.BTreeSetMaker pumpSource(Iterator<?> source)

pumpSource

public DB.BTreeSetMaker pumpSource(NavigableSet m)

pumpIgnoreDuplicates

public <K> DB.BTreeSetMaker pumpIgnoreDuplicates()

If source iteretor contains an duplicate key, exception is thrown. This options will only use firts key and ignore any consequentive duplicates.

pumpPresort

public DB.BTreeSetMaker pumpPresort(int batchSize)

standalone

protected DB.BTreeSetMaker standalone()

make

public <K> NavigableSet<K> make()

makeOrGet

public <K> NavigableSet<K> makeOrGet()

makeStringSet

public NavigableSet<String> makeStringSet()

Deprecated. MapDB 1.0 compat, will be removed in 2.1

creates set optimized for using String

makeLongSet

public NavigableSet<Long> makeLongSet()

Deprecated. MapDB 1.0 compat, will be removed in 2.1

creates set optimized for using zero or positive Long