de.lmu.ifi.dbs.elki.index.tree
Class AbstractEntry

java.lang.Object
  de.lmu.ifi.dbs.elki.index.tree.AbstractEntry

All Implemented Interfaces:

Entry, Externalizable, Serializable

Direct Known Subclasses:

MTreeDirectoryEntry, MTreeLeafEntry, SpatialDirectoryEntry, SpatialLeafEntry

public abstract class AbstractEntry
extends Object
implements Entry

Abstract superclass for entries in an tree based index structure.

Author:

Elke Achtert

See Also:

Serialized Form

Field Summary

private Integer

id Holds the id of the object (node or data object) represented by this entry.

Constructor Summary

	AbstractEntry() Empty constructor for serialization purposes.
protected	AbstractEntry(Integer id) Provides a new AbstractEntry with the specified id.

Method Summary

boolean	equals(Object o) Indicates whether some other object is "equal to" this one.
Integer	getID() Returns the id of the node or data object that is represented by this entry.
int	hashCode() Returns as hash code for the entry its id.
void	readExternal(ObjectInput in) Restore the id of the object (node or data object) that is represented by this entry from the specified stream.
void	setID(Integer id) Sets the id of the node or data object that is represented by this entry.
String	toString() Returns the id as a string representation of this entry.
void	writeExternal(ObjectOutput out) Writes the id of the object (node or data object) that is represented by this entry to the specified stream.

Methods inherited from class java.lang.Object

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

Methods inherited from interface de.lmu.ifi.dbs.elki.index.tree.Entry

isLeafEntry

Field Detail

id

private Integer id

Holds the id of the object (node or data object) represented by this entry.

Constructor Detail

AbstractEntry

public AbstractEntry()

Empty constructor for serialization purposes.

AbstractEntry

protected AbstractEntry(Integer id)

Provides a new AbstractEntry with the specified id.

Parameters:

id - the id of the object (node or data object) represented by this entry.

Method Detail

getID

public final Integer getID()

Returns the id of the node or data object that is represented by this entry.

Specified by:

getID in interface Entry

Returns:

the id of the node or data object that is represented by this entry

setID

public final void setID(Integer id)

Sets the id of the node or data object that is represented by this entry.

Specified by:

setID in interface Entry

Parameters:

id - the id to be set

writeExternal

public void writeExternal(ObjectOutput out)
                   throws IOException

Writes the id of the object (node or data object) that is represented by this entry to the specified stream.

Specified by:

writeExternal in interface Externalizable

Parameters:

out - the stream to write the object to

Throws:

IOException

readExternal

public void readExternal(ObjectInput in)
                  throws IOException,
                         ClassNotFoundException

Restore the id of the object (node or data object) that is represented by this entry from the specified stream.

Specified by:

readExternal in interface Externalizable

Parameters:

in - the stream to read data from in order to restore the object restored cannot be found.

Throws:

IOException

ClassNotFoundException

equals

public boolean equals(Object o)

Indicates whether some other object is "equal to" this one.

Overrides:

equals in class Object

Parameters:

o - the object to be tested

Returns:

true, if o is an AbstractEntry and has the same id as this entry.

hashCode

public int hashCode()

Returns as hash code for the entry its id.

Overrides:

hashCode in class Object

Returns:

the id of the entry

toString

public String toString()

Returns the id as a string representation of this entry.

Overrides:

toString in class Object

Returns:

a string representation of this entry