net.sf.jailer.util

Class LayoutStorage

java.lang.Object

net.sf.jailer.util.LayoutStorage

public class LayoutStorage
extends Object

Stores and restores graph layout.

Author:

Ralf Wisser

Field Summary

Fields

Modifier and Type	Field and Description
static boolean	enabled If storage is disabled, no persistent layout is available.

Constructor Summary

Constructors

Constructor and Description
LayoutStorage()

Method Summary

Methods

Modifier and Type	Method and Description
static void	checkSignificance(String rootTable) Removes layout if it is not significant.
static double[]	getPosition(String rootTable, String table) Gets position.
static Map<String,double[]>	getPositions(String root) Gets positions of all tables for a given root-table.
static void	removeAll() Removes all position information.
static void	removeAll(String root) Removes all position information for a given root table.
static void	restore(String file) Restores a layout from file
static void	setPosition(String rootTable, String table, double[] position) Sets position.
static void	setTempStorage(Map<String,double[]> tmp)
static void	store(PrintWriter out) Store layout into stream.
static void	store(PrintWriter out, Map<String,Map<String,double[]>> positions) Store layout into stream.

Methods inherited from class java.lang.Object

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

Field Detail

enabled

public static volatile boolean enabled

If storage is disabled, no persistent layout is available.

Constructor Detail

LayoutStorage

public LayoutStorage()

Method Detail

setPosition

public static void setPosition(String rootTable,
               String table,
               double[] position)

Sets position.

Parameters:

rootTable - root table

table - table

position - position: x, y, isFixed

checkSignificance

public static void checkSignificance(String rootTable)

Removes layout if it is not significant.

Parameters:

rootTable - root table for which the layout is

getPosition

public static double[] getPosition(String rootTable,
                   String table)

Gets position.

Parameters:

rootTable - root table

table - table

Returns:

position: x, y, isFixed

getPositions

public static Map<String,double[]> getPositions(String root)

Gets positions of all tables for a given root-table.

Parameters:

root - the root table

Returns:

positions of all tables for a the root-table

removeAll

public static void removeAll(String root)

Removes all position information for a given root table.

Parameters:

root - the root table

removeAll

public static void removeAll()

Removes all position information.

Parameters:

root - the root table

store

public static void store(PrintWriter out)

Store layout into stream.

Parameters:

out - the stream

store

public static void store(PrintWriter out,
         Map<String,Map<String,double[]>> positions)

Store layout into stream.

Parameters:

out - the stream

restore

public static void restore(String file)

Restores a layout from file

Parameters:

file - the file

setTempStorage

public static void setTempStorage(Map<String,double[]> tmp)