com.orientechnologies.orient.core.db.record

Class OTrackedMap<T>

java.lang.Object

java.util.AbstractMap<K,V>

java.util.HashMap<K,V>

java.util.LinkedHashMap<Object,T>

com.orientechnologies.orient.core.db.record.OTrackedMap<T>

All Implemented Interfaces:

ORecordElement, OTrackedMultiValue<Object,T>, Serializable, Cloneable, Map<Object,T>

Direct Known Subclasses:

ORecordLazyMap

public class OTrackedMap<T>
extends LinkedHashMap<Object,T>
implements ORecordElement, OTrackedMultiValue<Object,T>, Serializable

Implementation of LinkedHashMap bound to a source ORecord object to keep track of changes. This avoid to call the makeDirty() by hand when the map is changed.

Author:

Luca Garulli (l.garulli--(at)--orientdb.com)

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class java.util.AbstractMap

AbstractMap.SimpleEntry<K,V>, AbstractMap.SimpleImmutableEntry<K,V>

Nested classes/interfaces inherited from interface com.orientechnologies.orient.core.db.record.ORecordElement

ORecordElement.STATUS

Field Summary

Fields

Modifier and Type	Field and Description
protected Class<?>	genericClass
protected ORecord	sourceRecord

Constructor Summary

Constructors

Constructor and Description
OTrackedMap(ORecord iSourceRecord)
OTrackedMap(ORecord iRecord, Map<Object,T> iOrigin, Class<?> cls)

Method Summary

Modifier and Type	Method and Description
void	addChangeListener(OMultiValueChangeListener<Object,T> changeListener) Add change listener.
void	clear()
void	fireCollectionChangedEvent(OMultiValueChangeEvent<Object,T> event)
Class<?>	getGenericClass()
ORecordElement.STATUS	getInternalStatus() Returns the current status of the record.
ORecordElement	getOwner()
T	put(Object key, T value)
void	putAll(Map<?,? extends T> m)
T	remove(Object iKey)
void	removeRecordChangeListener(OMultiValueChangeListener<Object,T> changeListener) Remove change listener.
void	replace(OMultiValueChangeEvent<Object,Object> event, Object newValue)
Map<Object,T>	returnOriginalState(List<OMultiValueChangeEvent<Object,T>> multiValueChangeEvents) Reverts all operations that were performed on collection and return original collection state.
OTrackedMap<T>	setDirty() Marks the instance as dirty.
void	setDirtyNoChanged()
void	setInternalStatus(ORecordElement.STATUS iStatus) Changes the current internal status.

Methods inherited from class java.util.LinkedHashMap

containsValue, entrySet, forEach, get, getOrDefault, keySet, removeEldestEntry, replaceAll, values

Methods inherited from class java.util.HashMap

clone, compute, computeIfAbsent, computeIfPresent, containsKey, isEmpty, merge, putIfAbsent, remove, replace, replace, size

Methods inherited from class java.util.AbstractMap

equals, hashCode, toString

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.Map

compute, computeIfAbsent, computeIfPresent, containsKey, equals, hashCode, isEmpty, merge, putIfAbsent, remove, replace, replace, size

Field Detail

sourceRecord

protected final ORecord sourceRecord

genericClass

protected Class<?> genericClass

Constructor Detail

OTrackedMap

public OTrackedMap(ORecord iRecord,
                   Map<Object,T> iOrigin,
                   Class<?> cls)

OTrackedMap

public OTrackedMap(ORecord iSourceRecord)

Method Detail

getOwner

public ORecordElement getOwner()

Specified by:

getOwner in interface ORecordElement

Returns:

Returns record element which contains given one.

put

public T put(Object key,
             T value)

Specified by:

put in interface Map<Object,T>

Overrides:

put in class HashMap<Object,T>

remove

public T remove(Object iKey)

Specified by:

remove in interface Map<Object,T>

Overrides:

remove in class HashMap<Object,T>

clear

public void clear()

Specified by:

clear in interface Map<Object,T>

Overrides:

clear in class LinkedHashMap<Object,T>

putAll

public void putAll(Map<?,? extends T> m)

Specified by:

putAll in interface Map<Object,T>

Overrides:

putAll in class HashMap<Object,T>

setDirty

public OTrackedMap<T> setDirty()

Description copied from interface: ORecordElement

Marks the instance as dirty. The dirty status could be propagated up if the implementation supports ownership concept.

Specified by:

setDirty in interface ORecordElement

Returns:

The object it self. Useful to call methods in chain.

setDirtyNoChanged

public void setDirtyNoChanged()

Specified by:

setDirtyNoChanged in interface ORecordElement

getInternalStatus

public ORecordElement.STATUS getInternalStatus()

Description copied from interface: ORecordElement

Returns the current status of the record.

Specified by:

getInternalStatus in interface ORecordElement

Returns:

Current status as value between the defined values in the enum ORecordElement.STATUS

setInternalStatus

public void setInternalStatus(ORecordElement.STATUS iStatus)

Description copied from interface: ORecordElement

Changes the current internal status.

Specified by:

setInternalStatus in interface ORecordElement

Parameters:

iStatus - status between the values defined in the enum ORecordElement.STATUS

addChangeListener

public void addChangeListener(OMultiValueChangeListener<Object,T> changeListener)

Description copied from interface: OTrackedMultiValue

Add change listener.

Specified by:

addChangeListener in interface OTrackedMultiValue<Object,T>

Parameters:

changeListener - Change listener instance.

removeRecordChangeListener

public void removeRecordChangeListener(OMultiValueChangeListener<Object,T> changeListener)

Description copied from interface: OTrackedMultiValue

Remove change listener.

Specified by:

removeRecordChangeListener in interface OTrackedMultiValue<Object,T>

Parameters:

changeListener - Change listener instance.

returnOriginalState

public Map<Object,T> returnOriginalState(List<OMultiValueChangeEvent<Object,T>> multiValueChangeEvents)

Description copied from interface: OTrackedMultiValue

Reverts all operations that were performed on collection and return original collection state.

Specified by:

returnOriginalState in interface OTrackedMultiValue<Object,T>

Parameters:

multiValueChangeEvents - List of operations that were performed on collection.

Returns:

Original collection state.

fireCollectionChangedEvent

public void fireCollectionChangedEvent(OMultiValueChangeEvent<Object,T> event)

Specified by:

fireCollectionChangedEvent in interface OTrackedMultiValue<Object,T>

getGenericClass

public Class<?> getGenericClass()

Specified by:

getGenericClass in interface OTrackedMultiValue<Object,T>

replace

public void replace(OMultiValueChangeEvent<Object,Object> event,
                    Object newValue)

Specified by:

replace in interface OTrackedMultiValue<Object,T>