org.drools.core.util.index

Class RightTupleIndexHashTable

java.lang.Object

org.drools.core.util.AbstractHashTable

org.drools.core.util.index.RightTupleIndexHashTable

All Implemented Interfaces:

Externalizable, Serializable, RightTupleMemory

public class RightTupleIndexHashTable
extends AbstractHashTable
implements RightTupleMemory

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	RightTupleIndexHashTable.FieldIndexHashTableFullIterator
static class	RightTupleIndexHashTable.FullFastIterator

Nested classes/interfaces inherited from class org.drools.core.util.AbstractHashTable

AbstractHashTable.AbstractObjectComparator, AbstractHashTable.DoubleCompositeIndex, AbstractHashTable.EqualityEquals, AbstractHashTable.FieldIndex, AbstractHashTable.Index, AbstractHashTable.InstanceEquals, AbstractHashTable.ObjectComparator, AbstractHashTable.SingleIndex, AbstractHashTable.TripleCompositeIndex

Nested classes/interfaces inherited from interface org.drools.core.reteoo.RightTupleMemory

RightTupleMemory.IndexType

Field Summary

Fields

Modifier and Type	Field and Description
static int	PRIME

Fields inherited from class org.drools.core.util.AbstractHashTable

comparator, loadFactor, size, table, threshold

Constructor Summary

Constructors

Constructor and Description
RightTupleIndexHashTable()
RightTupleIndexHashTable(AbstractHashTable.FieldIndex[] index)
RightTupleIndexHashTable(int capacity, float loadFactor, AbstractHashTable.FieldIndex[] index)

Method Summary

Methods

Modifier and Type	Method and Description
void	add(RightTuple rightTuple)
void	clear()
boolean	contains(RightTuple rightTuple)
FastIterator	fastIterator()
FastIterator	fullFastIterator() Iterates the entire data structure, regardless of whether TupleMemory is hashed or not.
FastIterator	fullFastIterator(RightTuple rightTuple) Iterator that resumes from the current RightTuple, regardless of whether the TupleMemory is hashed or not
RightTupleList	get(LeftTuple tuple, InternalFactHandle factHandle)
Entry	getBucket(Object object)
RightTuple	getFirst(LeftTuple leftTuple, InternalFactHandle factHandle, FastIterator rightTupleIterator) The FactHandle is always the context fact and is necessary when the object being modified is in the both left and right node memories.
AbstractHashTable.Index	getIndex()
RightTupleMemory.IndexType	getIndexType()
int	getResizeHashcode(Entry entry)
void	init(Entry[] table, int size, int factSize)
boolean	isIndexed()
Iterator	iterator()
void	readExternal(ObjectInput in)
void	remove(RightTuple rightTuple) We assume that this rightTuple is contained in this hash table
void	removeAdd(RightTuple rightTuple)
int	size()
Entry[]	toArray()
String	toString()
void	writeExternal(ObjectOutput out)

Methods inherited from class org.drools.core.util.AbstractHashTable

ensureCapacity, getBucket, getTable, indexOf, isEmpty, newIterator, rehash, resize, setComparator

Methods inherited from class java.lang.Object

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

Field Detail

PRIME

public static final int PRIME

See Also:

Constant Field Values

Constructor Detail

RightTupleIndexHashTable

public RightTupleIndexHashTable()

RightTupleIndexHashTable

public RightTupleIndexHashTable(AbstractHashTable.FieldIndex[] index)

RightTupleIndexHashTable

public RightTupleIndexHashTable(int capacity,
                        float loadFactor,
                        AbstractHashTable.FieldIndex[] index)

Method Detail

readExternal

public void readExternal(ObjectInput in)
                  throws IOException,
                         ClassNotFoundException

Specified by:

readExternal in interface Externalizable

Overrides:

readExternal in class AbstractHashTable

Throws:

IOException

ClassNotFoundException

writeExternal

public void writeExternal(ObjectOutput out)
                   throws IOException

Specified by:

writeExternal in interface Externalizable

Overrides:

writeExternal in class AbstractHashTable

Throws:

IOException

init

public void init(Entry[] table,
        int size,
        int factSize)

getFirst

public RightTuple getFirst(LeftTuple leftTuple,
                  InternalFactHandle factHandle,
                  FastIterator rightTupleIterator)

Description copied from interface: RightTupleMemory

The FactHandle is always the context fact and is necessary when the object being modified is in the both left and right node memories. This is because the memory on the opposite side would not have yet memory.removeAdd the fact, so it could potentially be in the wrong bucket. So the bucket matches check always checks to ignore the first facthandle if it's the same as the context fact.

Specified by:

getFirst in interface RightTupleMemory

Returns:

isIndexed

public boolean isIndexed()

Specified by:

isIndexed in interface RightTupleMemory

getIndex

public AbstractHashTable.Index getIndex()

getBucket

public Entry getBucket(Object object)

Specified by:

getBucket in class AbstractHashTable

iterator

public Iterator iterator()

Specified by:

iterator in interface RightTupleMemory

Overrides:

iterator in class AbstractHashTable

getResizeHashcode

public int getResizeHashcode(Entry entry)

Specified by:

getResizeHashcode in class AbstractHashTable

fastIterator

public FastIterator fastIterator()

Specified by:

fastIterator in interface RightTupleMemory

fullFastIterator

public FastIterator fullFastIterator()

Description copied from interface: RightTupleMemory

Iterates the entire data structure, regardless of whether TupleMemory is hashed or not.

Specified by:

fullFastIterator in interface RightTupleMemory

Returns:

fullFastIterator

public FastIterator fullFastIterator(RightTuple rightTuple)

Description copied from interface: RightTupleMemory

Iterator that resumes from the current RightTuple, regardless of whether the TupleMemory is hashed or not

Specified by:

fullFastIterator in interface RightTupleMemory

Returns:

toArray

public Entry[] toArray()

Specified by:

toArray in interface RightTupleMemory

Overrides:

toArray in class AbstractHashTable

add

public void add(RightTuple rightTuple)

Specified by:

add in interface RightTupleMemory

removeAdd

public void removeAdd(RightTuple rightTuple)

Specified by:

removeAdd in interface RightTupleMemory

remove

public void remove(RightTuple rightTuple)

We assume that this rightTuple is contained in this hash table

Specified by:

remove in interface RightTupleMemory

contains

public boolean contains(RightTuple rightTuple)

Specified by:

contains in interface RightTupleMemory

get

public RightTupleList get(LeftTuple tuple,
                 InternalFactHandle factHandle)

size

public int size()

Specified by:

size in interface RightTupleMemory

Overrides:

size in class AbstractHashTable

toString

public String toString()

Overrides:

toString in class AbstractHashTable

getIndexType

public RightTupleMemory.IndexType getIndexType()

Specified by:

getIndexType in interface RightTupleMemory

clear

public void clear()

Specified by:

clear in interface RightTupleMemory

Overrides:

clear in class AbstractHashTable