pl.edu.agh.cast.model.mapper
Class Link

java.lang.Object
  pl.edu.agh.cast.model.mapper.Link

public class Link
extends Object

The link represents the raw connection between nodes in the base model.

Author:

AGH CAST Team

Constructor Summary

Link(long srcId, long dstId, String name, int priority)
Lazy binding constructor.

Link(Map args)
Creates the link from key : value pairs.

Link(Node src, Node dst, String name, int priority)
Creates the link from given set of attributes.

Link(Node src, Node dst, String name, Priority priority)

Link(Node src, Node dst, String name, Priority priority, String srcAccessor, String dstAccessor)

Link(Node src, Node dst, String name, Priority priority, String srcAcc, String dstAcc, int srcPosition, int dstPosition)

Method Summary

boolean	equals(Object other)
static Link	find(Link link) Find link which is equal to given link.
static Link	find(long linkId) Find link with given id of null if not present.
static List<Link>	findWithDst(long nodeId) Find all link whose destination is a node with given id.
static List<Link>	findWithSrc(long nodeId) Find all link whose source is a node with given id.
Node	getDst() Destination node getter.
String	getDstAccessor() Returns the name of the destination node accessor method.
long	getDstId() The destination id getter.
int	getDstPosition() The position of destination node among other nodes at the destination side of the relationship (set of links).
long	getId() DB indentifier reader.
String	getName() Name getter.
int	getPriority() Priority reader.
Node	getSrc() Source node getter.
String	getSrcAccessor() Returns the name of the source node accessor method.
long	getSrcId() The source id getter.
int	getSrcPosition() The position of source node among other nodes at the source side of the relationship (set of links).
int	hashCode() The hash code.
boolean	save() Save given metamodel link in the DB.
void	setDst(Node dst) Destination setter.
void	setDstAccessor(String accessor) Target accessor setter.
void	setDstPosition(int position) The target position setter.
void	setId(long newId) Id setter.
void	setPriority(int newPriority) Priority setter.
void	setPriority(Object priority) Priority setter (tries to translate given object to priority).
void	setSaved(boolean newSaved) Saved flag setter.
void	setSrc(Node srcNode) Source setter.
void	setSrcAccessor(String accessor) Source accessor setter.
void	setSrcPosition(int position)
static void	stats() Print out the stats of the link cache.
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

Link

public Link(Map args)

Creates the link from key : value pairs.

Parameters:

args - the map of key : value pairs.

Link

public Link(Node src,
            Node dst,
            String name,
            int priority)

Creates the link from given set of attributes.

Parameters:

src - The source of the link

dst - The target of the link

name - The name of the link

priority - The priority of the link

Link

public Link(long srcId,
            long dstId,
            String name,
            int priority)

Lazy binding constructor.

Parameters:

srcId - The id of the source node

dstId - The id of the destination node

name - The name of the link

priority - The priority of the link

Link

public Link(Node src,
            Node dst,
            String name,
            Priority priority,
            String srcAccessor,
            String dstAccessor)

Link

public Link(Node src,
            Node dst,
            String name,
            Priority priority)

Link

public Link(Node src,
            Node dst,
            String name,
            Priority priority,
            String srcAcc,
            String dstAcc,
            int srcPosition,
            int dstPosition)

Method Detail

save

public boolean save()

Save given metamodel link in the DB.

The saving process is recursive. Source and destination nodes are saved first and then the link is saved.

Returns:

True if the save was successful (or link has been saved earlier).

getPriority

public int getPriority()

Priority reader.

Returns:

Priority value

setPriority

public void setPriority(int newPriority)

Priority setter.

Parameters:

newPriority - priority value

setPriority

public void setPriority(Object priority)

Priority setter (tries to translate given object to priority).

Parameters:

priority - priority value

getDst

public Node getDst()

Destination node getter. Due to DB load optimization, must be used internally as well.

Returns:

Destination metamodel node

getDstId

public long getDstId()

The destination id getter.

Returns:

The destination id.

getSrc

public Node getSrc()

Source node getter. Due to DB load optimization, must be used internally as well.

Returns:

Source metamodel node

getSrcId

public long getSrcId()

The source id getter.

Returns:

The source id.

getId

public long getId()

DB indentifier reader.

Returns:

DB identifier

toString

public String toString()

Overrides:

toString in class Object

See Also:

Object.toString()

getName

public String getName()

Name getter.

Returns:

Name of the link

setSrc

public void setSrc(Node srcNode)

Source setter.

Parameters:

srcNode - Node to be set as source of the link

setDst

public void setDst(Node dst)

Destination setter.

Parameters:

dst - Node to be set as desitintion of the link

equals

public boolean equals(Object other)

Overrides:

equals in class Object

See Also:

Object.equals(java.lang.Object)

find

public static Link find(long linkId)

Find link with given id of null if not present.

Parameters:

linkId - The id of the link

Returns:

Link with given id or null

setSrcPosition

public void setSrcPosition(int position)

getSrcPosition

public int getSrcPosition()

The position of source node among other nodes at the source side of the relationship (set of links).

Returns:

The position of the source node.

setDstPosition

public void setDstPosition(int position)

The target position setter.

Parameters:

position - The position to set.

getDstPosition

public int getDstPosition()

The position of destination node among other nodes at the destination side of the relationship (set of links).

Returns:

The position of the target node.

hashCode

public int hashCode()

The hash code.

Overrides:

hashCode in class Object

Returns:

hash code

getSrcAccessor

public String getSrcAccessor()

Returns the name of the source node accessor method.

Returns:

Source node getter

getDstAccessor

public String getDstAccessor()

Returns the name of the destination node accessor method.

Returns:

Destination node getter

setSaved

public void setSaved(boolean newSaved)

Saved flag setter.

Parameters:

newSaved - New saved value.

setId

public void setId(long newId)

Id setter.

Parameters:

newId - New id

setSrcAccessor

public void setSrcAccessor(String accessor)

Source accessor setter.

Parameters:

accessor - The source accessor.

setDstAccessor

public void setDstAccessor(String accessor)

Target accessor setter.

Parameters:

accessor - The target accessor.

find

public static Link find(Link link)

Find link which is equal to given link.

Parameters:

link - The link which is used as the query example.

Returns:

The link with the same id.

findWithSrc

public static List<Link> findWithSrc(long nodeId)
                              throws SQLException

Find all link whose source is a node with given id.

Parameters:

nodeId - The id of the source node

Returns:

List of links

Throws:

SQLException

findWithDst

public static List<Link> findWithDst(long nodeId)
                              throws SQLException

Find all link whose destination is a node with given id.

Parameters:

nodeId - The id of the destination node

Returns:

List of links

Throws:

SQLException

stats

public static void stats()

Print out the stats of the link cache.