com.sleepycat.je.tree

Class INTargetRep.Default

java.lang.Object

com.sleepycat.je.tree.INArrayRep<INTargetRep,INTargetRep.Type,Node>

com.sleepycat.je.tree.INTargetRep

com.sleepycat.je.tree.INTargetRep.Default

Enclosing class:

INTargetRep

public static class INTargetRep.Default
extends INTargetRep

Nested Class Summary

Nested classes/interfaces inherited from class com.sleepycat.je.tree.INTargetRep

INTargetRep.Default, INTargetRep.None, INTargetRep.Sparse, INTargetRep.Type

Field Summary

Fields inherited from class com.sleepycat.je.tree.INTargetRep

NONE

Constructor Summary

Constructors

Constructor and Description
Default(int capacity)
Default(SizeofMarker marker)

Method Summary

Modifier and Type	Method and Description
long	calculateMemorySize() Returns the current memory size of the underlying representation in bytes.
INTargetRep	compact(IN parent) Chooses a more compact representation, if that's possible, otherwise does nothing.
INTargetRep	copy(int from, int to, int n, IN parent) Copies n elements at index denoted by "from" to the index denoted by "to".
Node	get(int idx) Returns the element at idx.
INTargetRep.Type	getType()
INTargetRep.Default	resize(int capacity) Changes the capacity, either truncating existing elements at the end if the capacity is reduced, or adding empty elements at the end if the capacity is enlarged.
INTargetRep	set(int idx, Node node, IN parent) Sets the array element at idx to the node.
void	updateCacheStats(boolean increment, Evictor evictor) Update the cache statistics for this representation.

Methods inherited from class java.lang.Object

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

Constructor Detail

Default

public Default(int capacity)

Default

public Default(SizeofMarker marker)

Method Detail

resize

public INTargetRep.Default resize(int capacity)

Description copied from class: INArrayRep

Changes the capacity, either truncating existing elements at the end if the capacity is reduced, or adding empty elements at the end if the capacity is enlarged. The caller guarantees that all truncated elements are unused.

Specified by:

resize in class INArrayRep<INTargetRep,INTargetRep.Type,Node>

getType

public INTargetRep.Type getType()

Specified by:

getType in class INArrayRep<INTargetRep,INTargetRep.Type,Node>

get

public Node get(int idx)

Description copied from class: INArrayRep

Returns the element at idx.

Specified by:

get in class INArrayRep<INTargetRep,INTargetRep.Type,Node>

set

public INTargetRep set(int idx,
                       Node node,
                       IN parent)

Description copied from class: INArrayRep

Sets the array element at idx to the node. The underlying representation can change as a result of the set operation.

Specified by:

set in class INArrayRep<INTargetRep,INTargetRep.Type,Node>

Parameters:

idx - the index to be set

node - the array elelement at the idx

Returns:

either this, or the new representation if there was a mutation.

copy

public INTargetRep copy(int from,
                        int to,
                        int n,
                        IN parent)

Description copied from class: INArrayRep

Copies n elements at index denoted by "from" to the index denoted by "to". Overlapping copies are supported. It's possible that the representation may mutate as a result of the copy.

Specified by:

copy in class INArrayRep<INTargetRep,INTargetRep.Type,Node>

Parameters:

from - the source (inclusive) of the copy

to - the target (inclusive) of the copy

n - the number of elements to be copied.

Returns:

either this, or the new representation if there was a mutation.

compact

public INTargetRep compact(IN parent)

Description copied from class: INArrayRep

Chooses a more compact representation, if that's possible, otherwise does nothing.

WARNING: This method must not change the memory size of the current representation and return 'this', without explicitly adjusting memory usage (via noteRepChange) before returning. Returning a new instance is the trigger for adjusting memory usage in the parent.

Specified by:

compact in class INArrayRep<INTargetRep,INTargetRep.Type,Node>

Returns:

this or a more compact representation.

calculateMemorySize

public long calculateMemorySize()

Description copied from class: INArrayRep

Returns the current memory size of the underlying representation in bytes. It returns the size of the representation, excluding the size of the elements contained in it.

Specified by:

calculateMemorySize in class INArrayRep<INTargetRep,INTargetRep.Type,Node>

Returns:

the memory size of the representation in bytes

updateCacheStats

public void updateCacheStats(boolean increment,
                             Evictor evictor)

Description copied from class: INArrayRep

Update the cache statistics for this representation.

Parameters:

increment - true the stat should be incremented, false if it must be decremented

evictor - the evictor that shoulds ths stat counters