com.orientechnologies.orient.core.db.record

Class OPlaceholder

java.lang.Object

com.orientechnologies.orient.core.db.record.OPlaceholder

All Implemented Interfaces:

OIdentifiable, OStreamable, Comparable<OIdentifiable>, Comparator<OIdentifiable>

public class OPlaceholder
extends Object
implements OIdentifiable, OStreamable

Base interface for identifiable objects. This abstraction is required to use ORID and ORecord in many points.

Author:

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

Constructor Summary

Constructors

Constructor and Description
OPlaceholder() Empty constructor used by serialization
OPlaceholder(ORecord iRecord)
OPlaceholder(ORecordId rid, int version)

Method Summary

Modifier and Type	Method and Description
int	compare(OIdentifiable o1, OIdentifiable o2)
int	compareTo(OIdentifiable o)
boolean	equals(Object obj)
void	fromStream(DataInput in)
ORID	getIdentity() Returns the record identity.
<T extends ORecord> T	getRecord() Returns the record instance.
int	getVersion()
int	hashCode()
boolean	isLocked()
void	lock(boolean iExclusive)
OStorage.LOCKING_STRATEGY	lockingStrategy()
void	toStream(DataOutput out)
String	toString()
void	unlock()

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Comparator

comparing, comparing, comparingDouble, comparingInt, comparingLong, naturalOrder, nullsFirst, nullsLast, reversed, reverseOrder, thenComparing, thenComparing, thenComparing, thenComparingDouble, thenComparingInt, thenComparingLong

Constructor Detail

OPlaceholder

public OPlaceholder()

Empty constructor used by serialization

OPlaceholder

public OPlaceholder(ORecordId rid,
                    int version)

OPlaceholder

public OPlaceholder(ORecord iRecord)

Method Detail

getIdentity

public ORID getIdentity()

Description copied from interface: OIdentifiable

Returns the record identity.

Specified by:

getIdentity in interface OIdentifiable

Returns:

ORID instance

getRecord

public <T extends ORecord> T getRecord()

Description copied from interface: OIdentifiable

Returns the record instance.

Specified by:

getRecord in interface OIdentifiable

Returns:

ORecord instance

equals

public boolean equals(Object obj)

Specified by:

equals in interface Comparator<OIdentifiable>

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

compareTo

public int compareTo(OIdentifiable o)

Specified by:

compareTo in interface Comparable<OIdentifiable>

compare

public int compare(OIdentifiable o1,
                   OIdentifiable o2)

Specified by:

compare in interface Comparator<OIdentifiable>

getVersion

public int getVersion()

toString

public String toString()

Overrides:

toString in class Object

toStream

public void toStream(DataOutput out)
              throws IOException

Specified by:

toStream in interface OStreamable

Throws:

IOException

fromStream

public void fromStream(DataInput in)
                throws IOException

Specified by:

fromStream in interface OStreamable

Throws:

IOException

lock

public void lock(boolean iExclusive)

Specified by:

lock in interface OIdentifiable

isLocked

public boolean isLocked()

Specified by:

isLocked in interface OIdentifiable

lockingStrategy

public OStorage.LOCKING_STRATEGY lockingStrategy()

Specified by:

lockingStrategy in interface OIdentifiable

unlock

public void unlock()

Specified by:

unlock in interface OIdentifiable