uk.ac.ic.doc.automed.p2p.editor
Class KQueryMain.QueryEditorHelper

java.lang.Object
  uk.ac.ic.doc.automed.p2p.editor.KQueryMain.QueryEditorHelper

All Implemented Interfaces:

java.awt.event.ActionListener, java.util.EventListener

Enclosing class:

KQueryMain

public class KQueryMain.QueryEditorHelper
extends java.lang.Object
implements java.awt.event.ActionListener

Handle the event in which user has typed in keyword phrases that are used for constructing the query trees. We support two basic phrases:

1. path: a sequence of keywords separated by a demiliter, e.g. author-title-year
2. parent-children: a keyword followed by a set of keywords enclosed in a pair of in parentheses, which are treated as children nodes of that keyword e.g. title(author,year) (same as the above)

Author:

Duc Le

Field Summary

(package private) java.lang.String	defaultType
private static java.lang.String	DELIM_LIST
private static java.lang.String	DELIM_NAME
private static java.lang.String	DELIM_PATH
private static java.lang.String	DELIM_PC
private static java.lang.String	DELIM_SPACE
private java.awt.Point	kp
private static java.lang.String	NAME_PRIME
private javax.swing.text.JTextComponent	txtCom
(package private) static double	vgap

Constructor Summary

KQueryMain.QueryEditorHelper(javax.swing.text.JTextComponent txtCom)

Method Summary

void	actionPerformed(java.awt.event.ActionEvent e) Implements the ActionListener interface.
private GNode	addKeyword(java.lang.String w) Process an input keyword name to either create it or retrieve it for data type update (if already exists).
void	addNewKeyword(GNode child, GNode parent, GraphUI gui) Add a new keyword node, and connects it to an existing node
void	addNewKeyword(GNode nknode, GraphUI gui) Add a new keyword as a new node in the query graph. Draw the k-node, adds to the query graph and draw edges that connect this new k-node to all other nodes of the graph.
GEdge	addNewKeywordEdge(GNode child, GNode parent, GraphUI gui) Add a k-edge between two existing k-nodes.
void	clear()
GNode	getGNode(java.lang.String kw, GraphUI gui) Check if a keyword exists in the user graph.
java.awt.Point	getNextNodePoint(GraphUI gui) Obtain the next point to draw a knode based on the points of the existing nodes.
Graph	getQuery() Return the query object

Methods inherited from class java.lang.Object

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

Field Detail

txtCom

private javax.swing.text.JTextComponent txtCom

vgap

static final double vgap

See Also:

Constant Field Values

kp

private java.awt.Point kp

DELIM_SPACE

private static final java.lang.String DELIM_SPACE

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Constant Field Values

DELIM_PATH

private static final java.lang.String DELIM_PATH

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Constant Field Values

DELIM_NAME

private static final java.lang.String DELIM_NAME

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Constant Field Values

DELIM_PC

private static final java.lang.String DELIM_PC

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Constant Field Values

DELIM_LIST

private static final java.lang.String DELIM_LIST

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Constant Field Values

NAME_PRIME

private static final java.lang.String NAME_PRIME

See Also:

Constant Field Values

defaultType

final java.lang.String defaultType

See Also:

Constant Field Values

Constructor Detail

KQueryMain.QueryEditorHelper

public KQueryMain.QueryEditorHelper(javax.swing.text.JTextComponent txtCom)

Method Detail

addKeyword

private GNode addKeyword(java.lang.String w)

Process an input keyword name to either create it or retrieve it for data type update (if already exists).

Parameters:

w -

Returns:

actionPerformed

public void actionPerformed(java.awt.event.ActionEvent e)

Implements the ActionListener interface. This method is invoked when the user has entered a keyword definition on the GUI (e.g. via a text box)

Specified by:

actionPerformed in interface java.awt.event.ActionListener

getGNode

public GNode getGNode(java.lang.String kw,
                      GraphUI gui)

Check if a keyword exists in the user graph.

Parameters:

kq -

gui -

getQuery

public Graph getQuery()

Return the query object

Returns:

addNewKeyword

public void addNewKeyword(GNode nknode,
                          GraphUI gui)

Add a new keyword as a new node in the query graph.
Draw the k-node, adds to the query graph and draw edges that connect this new k-node to all other nodes of the graph.

Parameters:

kw -

gui -

addNewKeywordEdge

public GEdge addNewKeywordEdge(GNode child,
                               GNode parent,
                               GraphUI gui)

Add a k-edge between two existing k-nodes.

Parameters:

child -

parent -

gui -

addNewKeyword

public void addNewKeyword(GNode child,
                          GNode parent,
                          GraphUI gui)

Add a new keyword node, and connects it to an existing node

Parameters:

child -

existing -

gui -

getNextNodePoint

public java.awt.Point getNextNodePoint(GraphUI gui)

Obtain the next point to draw a knode based on the points of the existing nodes.

Returns:

clear

public void clear()