Package org.drools.core.util.index

Class TupleIndexHashTable

java.lang.Object

org.drools.core.util.AbstractHashTable

org.drools.core.util.index.TupleIndexHashTable

All Implemented Interfaces:

java.io.Externalizable, java.io.Serializable, TupleMemory

public class TupleIndexHashTable
extends AbstractHashTable
implements TupleMemory

See Also:

Serialized Form

Nested Class Summary

Nested Classes

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

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

AbstractHashTable.DoubleCompositeIndex, AbstractHashTable.DoubleHashEntry, AbstractHashTable.HashEntry, AbstractHashTable.Index, AbstractHashTable.IndexTupleList, AbstractHashTable.SingleHashEntry, AbstractHashTable.SingleIndex, AbstractHashTable.TripleCompositeIndex, AbstractHashTable.TripleHashEntry

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

TupleMemory.IndexType

Field Summary

Fields

Modifier and Type	Field	Description
static int	PRIME

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

loadFactor, size, table, threshold

Constructor Summary

Constructors

Constructor	Description
TupleIndexHashTable()
TupleIndexHashTable(int capacity, float loadFactor, org.drools.base.util.FieldIndex[] index, boolean left)
TupleIndexHashTable(org.drools.base.util.FieldIndex[] index, boolean left)

Method Summary

Modifier and Type	Method	Description
void	add(Tuple tuple)
void	clear()
FastIterator<Tuple>	fastIterator()
FastIterator<Tuple>	fullFastIterator()	Iterates the entire data structure, regardless of whether TupleMemory is hashed or not.
FastIterator<Tuple>	fullFastIterator(Tuple tuple)	Iterator that resumes from the current RightTuple, regardless of whether the TupleMemory is hashed or not
Tuple	getFirst(Tuple tuple)	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()
TupleMemory.IndexType	getIndexType()
int	getResizeHashcode(TupleList entry)
void	init(TupleList[] table, int size, int factSize)
boolean	isIndexed()
Iterator<Tuple>	iterator()
void	readExternal(java.io.ObjectInput in)
void	remove(Tuple tuple)
void	removeAdd(Tuple tuple)
int	size()
Tuple[]	toArray()
java.lang.String	toString()
void	writeExternal(java.io.ObjectOutput out)

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

ensureCapacity, getTable, indexOf, isEmpty, newIterator, resize

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

TupleIndexHashTable

public TupleIndexHashTable()

TupleIndexHashTable

public TupleIndexHashTable(org.drools.base.util.FieldIndex[] index,
                           boolean left)

TupleIndexHashTable

public TupleIndexHashTable(int capacity,
                           float loadFactor,
                           org.drools.base.util.FieldIndex[] index,
                           boolean left)

Method Detail

readExternal

public void readExternal(java.io.ObjectInput in)
                  throws java.io.IOException,
                         java.lang.ClassNotFoundException

Specified by:

readExternal in interface java.io.Externalizable

Overrides:

readExternal in class AbstractHashTable

Throws:

java.io.IOException

java.lang.ClassNotFoundException

writeExternal

public void writeExternal(java.io.ObjectOutput out)
                   throws java.io.IOException

Specified by:

writeExternal in interface java.io.Externalizable

Overrides:

writeExternal in class AbstractHashTable

Throws:

java.io.IOException

init

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

iterator

public Iterator<Tuple> iterator()

Specified by:

iterator in interface TupleMemory

Overrides:

iterator in class AbstractHashTable

fastIterator

public FastIterator<Tuple> fastIterator()

Specified by:

fastIterator in interface TupleMemory

fullFastIterator

public FastIterator<Tuple> fullFastIterator()

Description copied from interface: TupleMemory

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

Specified by:

fullFastIterator in interface TupleMemory

Returns:

fullFastIterator

public FastIterator<Tuple> fullFastIterator(Tuple tuple)

Description copied from interface: TupleMemory

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

Specified by:

fullFastIterator in interface TupleMemory

Returns:

getFirst

public Tuple getFirst(Tuple tuple)

Description copied from interface: TupleMemory

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 TupleMemory

isIndexed

public boolean isIndexed()

Specified by:

isIndexed in interface TupleMemory

getIndex

public AbstractHashTable.Index getIndex()

Specified by:

getIndex in interface TupleMemory

getResizeHashcode

public int getResizeHashcode(TupleList entry)

Specified by:

getResizeHashcode in class AbstractHashTable

toArray

public Tuple[] toArray()

Specified by:

toArray in interface TupleMemory

removeAdd

public void removeAdd(Tuple tuple)

Specified by:

removeAdd in interface TupleMemory

add

public void add(Tuple tuple)

Specified by:

add in interface TupleMemory

remove

public void remove(Tuple tuple)

Specified by:

remove in interface TupleMemory

size

public int size()

Specified by:

size in interface TupleMemory

Overrides:

size in class AbstractHashTable

toString

public java.lang.String toString()

Overrides:

toString in class AbstractHashTable

clear

public void clear()

Specified by:

clear in interface TupleMemory

Overrides:

clear in class AbstractHashTable

getIndexType

public TupleMemory.IndexType getIndexType()

Specified by:

getIndexType in interface TupleMemory