common.input

Class DBExplore

java.lang.Object

org.trianacode.taskgraph.Unit

common.input.DBExplore

public class DBExplore
extends Unit

A tool for accessing data stored in an external database

Field Summary

Fields inherited from class org.trianacode.taskgraph.Unit

CLONE_ALL_OUTPUT, CLONE_MULTIPLE_OUTPUT, COPY_OUTPUT, ESSENTIAL, ESSENTIAL_IF_CONNECTED, IMMEDIATE_UPDATE, INTERNAL, LATE_INITIALIZE, NO_UPDATE, ON_TASK_INSTANTATION, ON_USER_ACCESS, OPTIONAL, PROCESS_UPDATE, TRANSIENT, TRANSIENT_ACCESSIBLE, USER_ACCESSIBLE

Constructor Summary

Constructors

Constructor and Description
DBExplore()

Method Summary

Methods

Modifier and Type	Method and Description
void	countResults()
void	dispose() Called when the unit is disposed of.
java.lang.String	getHelpFile()
java.lang.String[]	getInputTypes() This method should return an array of the data types accepted by nodes not specified in getNodeInputTypes (e.g.
java.lang.String[]	getOutputTypes() This method should return an array of the data types output by nodes not specified in getNodeOutputTypes() (e.g.
java.lang.String	getPopUpDescription() Convienience method for retrieving the default pop-up description for this unit.
void	init() Called when the unit is created.
void	initialiseConnection() Initialise database connection
java.lang.String[][]	makeQuery(java.lang.String host, java.lang.String user, java.lang.String passwd, java.lang.String dbase, java.lang.String query)
void	parameterUpdate(java.lang.String paramname, java.lang.Object value) Called a parameters is updated (e.g.
void	process() The main unit algorithm.
void	reset() Called when the unit is reset.
void	setNumberOfNodes(int n)

Methods inherited from class org.trianacode.taskgraph.Unit

debug, debug, defineParameter, extractClipInState, getClipIn, getClipIn, getControlInterface, getDefaultInputNodes, getDefaultNodeRequirement, getDefaultOutputNodes, getDisplayName, getDisplayPackage, getGUIBuilderV2Info, getHelpFileLocation, getInputAtNode, getInputNodeCount, getMaximumInputNodes, getMaximumOutputNodes, getMinimumInputNodes, getMinimumOutputNodes, getNodeInputTypes, getNodeOutputTypes, getOutputNodeCount, getOutputPolicy, getPackageName, getParameter, getParameterPanelClass, getParameterPanelInstantiate, getParameterType, getParameterUpdatePolicy, getRunnableInterface, getTask, getTaskGraphContext, getToolName, getToolPackage, getToolTable, getVersion, hideParameterPanel, isClipInName, isInputAtNode, isOutputSent, isParameter, log, log, notifyError, notifyError, output, outputAtNode, outputAtNode, parameterUpdated, putClipIn, removeClipIn, removeParameter, restoreClipInState, setDefaultInputNodes, setDefaultNodeRequirement, setDefaultOutputNodes, setDisplayName, setDisplayPackage, setGUIBuilderV2Info, setHelpFileLocation, setMaximumInputNodes, setMaximumOutputNodes, setMinimumInputNodes, setMinimumOutputNodes, setOutputPolicy, setParameter, setParameterPanelClass, setParameterPanelInstantiate, setParameterUpdatePolicy, setPopUpDescription, setRunnableInterface, setToolName, setToolPackage, setVersion, showParameterPanel, stopping

Methods inherited from class java.lang.Object

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

Constructor Detail

DBExplore

public DBExplore()

Method Detail

process

public void process()
             throws java.lang.Exception

Description copied from class: Unit

The main unit algorithm. This method should be implemented with the appropriate algorihtm for the unit (if no algorithm is implemented deadlock occurs).

Specified by:

process in class Unit

Throws:

java.lang.Exception

init

public void init()

Called when the unit is created. Initialises the unit's properties and parameters.

Overrides:

init in class Unit

reset

public void reset()

Called when the unit is reset.

Overrides:

reset in class Unit

dispose

public void dispose()

Called when the unit is disposed of.

Overrides:

dispose in class Unit

parameterUpdate

public void parameterUpdate(java.lang.String paramname,
                   java.lang.Object value)

Called a parameters is updated (e.g. by the GUI)

Overrides:

parameterUpdate in class Unit

countResults

public void countResults()

setNumberOfNodes

public void setNumberOfNodes(int n)

initialiseConnection

public void initialiseConnection()

Initialise database connection

makeQuery

public java.lang.String[][] makeQuery(java.lang.String host,
                             java.lang.String user,
                             java.lang.String passwd,
                             java.lang.String dbase,
                             java.lang.String query)

getInputTypes

public java.lang.String[] getInputTypes()

Description copied from class: Unit

This method should return an array of the data types accepted by nodes not specified in getNodeInputTypes (e.g. triana.types.VectorType). If no package is specified then triana.types is assumed.

Specified by:

getInputTypes in class Unit

Returns:

an array of the input types for DBExplore

getOutputTypes

public java.lang.String[] getOutputTypes()

Description copied from class: Unit

This method should return an array of the data types output by nodes not specified in getNodeOutputTypes() (e.g. triana.types.VectorType). If no package is specified then triana.types is assumed.

Specified by:

getOutputTypes in class Unit

Returns:

an array of the output types for DBExplore

getPopUpDescription

public java.lang.String getPopUpDescription()

Description copied from class: Unit

Convienience method for retrieving the default pop-up description for this unit.

Overrides:

getPopUpDescription in class Unit

Returns:

a brief! description of what the unit does

getHelpFile

public java.lang.String getHelpFile()