org.apache.jackrabbit.core.state

Class PropertyState

java.lang.Object

org.apache.jackrabbit.core.state.ItemState

org.apache.jackrabbit.core.state.PropertyState

Direct Known Subclasses:

VirtualPropertyState

public class PropertyState
extends ItemState

PropertyState represents the state of a Property.

Field Summary

Fields inherited from class org.apache.jackrabbit.core.state.ItemState

overlayedState, status, STATUS_EXISTING, STATUS_EXISTING_MODIFIED, STATUS_EXISTING_REMOVED, STATUS_NEW, STATUS_STALE_DESTROYED, STATUS_UNDEFINED

Constructor Summary

Constructors

Constructor and Description
PropertyState(PropertyId id, int initialStatus, boolean isTransient) Create a new PropertyState
PropertyState(PropertyState overlayedState, int initialStatus, boolean isTransient) Constructs a new property state that is initially connected to an overlayed state.

Method Summary

Modifier and Type	Method and Description
long	calculateMemoryFootprint() Returns an estimate of the memory size of this property state.
void	copy(ItemState state, boolean syncModCount) Copy state information from another state into this state
ItemId	getId() Returns the identifier of this item.
Name	getName() Returns the name of this property.
NodeId	getParentId() Returns the NodeId of the parent NodeState or null if either this item state represents the root node or this item state is 'free floating', i.e.
PropertyId	getPropertyId() Returns the identifier of this property.
int	getType() Returns the type of this property.
InternalValue[]	getValues() Returns the value(s) of this property.
boolean	isMultiValued() Returns true if this property is multi-valued, otherwise false.
boolean	isNode() Determines if this item state represents a node.
void	setMultiValued(boolean multiValued) Sets the flag indicating whether this property is multi-valued.
void	setType(int type) Sets the type of this property.
void	setValues(InternalValue[] values) Sets the value(s) of this property.

Methods inherited from class org.apache.jackrabbit.core.state.ItemState

connect, discard, disconnect, getContainer, getModCount, getOverlayedState, getStatus, hasOverlayedState, isConnected, isStale, isTransient, notifyStateCreated, notifyStateDestroyed, notifyStateDiscarded, notifyStateUpdated, reconnect, setContainer, setModCount, setStatus

Methods inherited from class java.lang.Object

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

Constructor Detail

PropertyState

public PropertyState(PropertyState overlayedState,
                     int initialStatus,
                     boolean isTransient)

Constructs a new property state that is initially connected to an overlayed state.

Parameters:

overlayedState - the backing property state being overlayed

initialStatus - the initial status of the property state object

isTransient - flag indicating whether this state is transient or not

PropertyState

public PropertyState(PropertyId id,
                     int initialStatus,
                     boolean isTransient)

Create a new PropertyState

Parameters:

id - id of the property

initialStatus - the initial status of the property state object

isTransient - flag indicating whether this state is transient or not

Method Detail

copy

public void copy(ItemState state,
                 boolean syncModCount)

Copy state information from another state into this state

Specified by:

copy in class ItemState

Parameters:

state - source state information

syncModCount - if the modCount should be synchronized.

isNode

public boolean isNode()

Determines if this item state represents a node.

Specified by:

isNode in class ItemState

Returns:

always false

See Also:

ItemState.isNode()

getId

public ItemId getId()

Returns the identifier of this item.

Specified by:

getId in class ItemState

Returns:

the id of this item.

getPropertyId

public PropertyId getPropertyId()

Returns the identifier of this property.

Returns:

the id of this property.

getParentId

public NodeId getParentId()

Returns the NodeId of the parent NodeState or null if either this item state represents the root node or this item state is 'free floating', i.e. not attached to the repository's hierarchy.

Specified by:

getParentId in class ItemState

Returns:

the parent NodeState's Id

getName

public Name getName()

Returns the name of this property.

Returns:

the name of this property.

setType

public void setType(int type)

Sets the type of this property.

Parameters:

type - the type to be set

See Also:

PropertyType

setMultiValued

public void setMultiValued(boolean multiValued)

Sets the flag indicating whether this property is multi-valued.

Parameters:

multiValued - flag indicating whether this property is multi-valued

getType

public int getType()

Returns the type of this property.

Returns:

the type of this property.

See Also:

PropertyType

isMultiValued

public boolean isMultiValued()

Returns true if this property is multi-valued, otherwise false.

Returns:

true if this property is multi-valued, otherwise false.

setValues

public void setValues(InternalValue[] values)

Sets the value(s) of this property.

Parameters:

values - the new values

getValues

public InternalValue[] getValues()

Returns the value(s) of this property.

Returns:

the value(s) of this property.

calculateMemoryFootprint

public long calculateMemoryFootprint()

Returns an estimate of the memory size of this property state. The return value actually highly overestimates the amount of required memory, but changing the estimates would likely cause OOMs in many downstream deployments that have set their cache sizes based on experience with these erroneous size estimates. So we don't change the formula used by this method.

Specified by:

calculateMemoryFootprint in class ItemState

Returns:

the approximate memory consumption of this state.