org.apache.jena.dboe.index

Class RangeIndexWrapper

java.lang.Object

org.apache.jena.dboe.index.RangeIndexWrapper

All Implemented Interfaces:

Iterable<Record>, org.apache.jena.atlas.lib.Closeable, org.apache.jena.atlas.lib.Sync, Index, RangeIndex

Direct Known Subclasses:

RangeIndexLogger

public class RangeIndexWrapper
extends Object
implements RangeIndex

Constructor Summary

Constructors

Constructor and Description
RangeIndexWrapper(RangeIndex rIdx)

Method Summary

Modifier and Type	Method and Description
void	check() Perform checks on this index
void	clear() Clear the index
void	close() Close the index - can not be used again through this object
boolean	contains(Record record) Return whether the index contains the record or not.
boolean	delete(Record record) Delete a record - Return true if a record was actually removed
Record	find(Record record) Find one record - and return the record actually in the index (may have a value part)
RecordFactory	getRecordFactory() Get the Record factory associated with this index
RangeIndex	getWrapped()
boolean	insert(Record record) Insert a record - return true if an insertion was actually needed
boolean	isEmpty() Answer whether the index is empty or not.
Iterator<Record>	iterator() Iterate over the whole index
Iterator<Record>	iterator(Record minRec, Record maxRec) Return records between min (inclusive) and max (exclusive), based on the record keys
<X> Iterator<X>	iterator(Record minRec, Record maxRec, RecordMapper<X> mapper)
Record	maxKey() Return the record containing the greatest key - may or may not have the associated value
Record	minKey() Return the record containing the least key - may or may not have the associated value
long	size() Return size if known else return -1 : does not count the persistent storage
void	sync()

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.jena.dboe.index.Index

bulkChanges

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Constructor Detail

RangeIndexWrapper

public RangeIndexWrapper(RangeIndex rIdx)

Method Detail

find

public Record find(Record record)

Description copied from interface: Index

Find one record - and return the record actually in the index (may have a value part)

Specified by:

find in interface Index

contains

public boolean contains(Record record)

Description copied from interface: Index

Return whether the index contains the record or not.

Specified by:

contains in interface Index

minKey

public Record minKey()

Description copied from interface: RangeIndex

Return the record containing the least key - may or may not have the associated value

Specified by:

minKey in interface RangeIndex

maxKey

public Record maxKey()

Description copied from interface: RangeIndex

Return the record containing the greatest key - may or may not have the associated value

Specified by:

maxKey in interface RangeIndex

insert

public boolean insert(Record record)

Description copied from interface: Index

Insert a record - return true if an insertion was actually needed

Specified by:

insert in interface Index

delete

public boolean delete(Record record)

Description copied from interface: Index

Delete a record - Return true if a record was actually removed

Specified by:

delete in interface Index

iterator

public Iterator<Record> iterator()

Description copied from interface: Index

Iterate over the whole index

Specified by:

iterator in interface Iterable<Record>

Specified by:

iterator in interface Index

iterator

public Iterator<Record> iterator(Record minRec,
                                 Record maxRec)

Description copied from interface: RangeIndex

Return records between min (inclusive) and max (exclusive), based on the record keys

Specified by:

iterator in interface RangeIndex

iterator

public <X> Iterator<X> iterator(Record minRec,
                                Record maxRec,
                                RecordMapper<X> mapper)

Specified by:

iterator in interface RangeIndex

isEmpty

public boolean isEmpty()

Description copied from interface: Index

Answer whether the index is empty or not. May return false for unknown or meaningless

Specified by:

isEmpty in interface Index

clear

public void clear()

Description copied from interface: Index

Clear the index

Specified by:

clear in interface Index

sync

public void sync()

Specified by:

sync in interface org.apache.jena.atlas.lib.Sync

close

public void close()

Description copied from interface: Index

Close the index - can not be used again through this object

Specified by:

close in interface org.apache.jena.atlas.lib.Closeable

Specified by:

close in interface Index

getWrapped

public RangeIndex getWrapped()

getRecordFactory

public RecordFactory getRecordFactory()

Description copied from interface: Index

Get the Record factory associated with this index

Specified by:

getRecordFactory in interface Index

check

public void check()

Description copied from interface: Index

Perform checks on this index

Specified by:

check in interface Index

size

public long size()

Description copied from interface: Index

Return size if known else return -1 : does not count the persistent storage

Specified by:

size in interface Index