ucar.unidata.data
Class DirectDataChoice

java.lang.Object
  ucar.unidata.data.DataChoice
      ucar.unidata.data.DirectDataChoice

Direct Known Subclasses:

CompositeDataChoice

public class DirectDataChoice
extends DataChoice

A subclass of DataChoice for supporting a leaf choice. This choice maps directly to data.

Version:

$Revision: 1.56 $

Author:

IDV Development Team

Field Summary

protected DataSource	dataSource The data source
static String	PROP_WRITEDATASOURCE This is the XmlEncoder encoding property we use to determine if the datasource should be written out

Fields inherited from class ucar.unidata.data.DataChoice

description, id, name, NULL_DATASELECTION, NULL_PROPERTIES, NULL_REQUESTPROPERTIES, parent, PROP_ICON, PROP_REQUESTER, properties

Constructor Summary

DirectDataChoice()
Default bean constructor; does nothing.

DirectDataChoice(DataSource dataSource, Object id, String name, String description, List categories)
Create a new DirectDataChoice.

DirectDataChoice(DataSource dataSource, Object id, String name, String description, List categories, DataSelection dataSelection)
Create a new DirectDataChoice.

DirectDataChoice(DataSource dataSource, Object id, String name, String description, List categories, DataSelection dataSelection, Hashtable properties)
Create a new DirectDataChoice.

DirectDataChoice(DataSource dataSource, Object id, String name, String description, List categories, Hashtable properties)
Create a new DirectDataChoice.

DirectDataChoice(DirectDataChoice other)
Copy constructor.

Method Summary

void	addDataChangeListener(DataChangeListener listener) Add the data change listener
boolean	basicallyEquals(DataChoice that) This just checks for basic equality.
DataChoice	cloneMe() Method for cloning.
boolean	equals(Object o) Check for equality.
List	getAllDateTimes() Get all the times associated with this choice.
List	getAllLevels(DataSelection dataSelection) Get all the levels associated with this choice
protected Data	getData(DataCategory category, DataSelection dataSelection, Hashtable requestProperties) Get the data that this choice represents.
DataSource	getDataSource() Get the associated DataSource.
void	getDataSources(List dataSources) Add to the given list all the data sources
void	getFinalDataChoices(List finalDataChoices) Add to the given list all final data choices (i.e., the leafs of the datachoice tree)
String	getFullDescription() Get the full description for this DataChoice.
List	getSelectedDateTimes() Get all the selected times associated with this choice.
int	hashCode() Return the hashcode for this DirectDataChoice
void	initAfterUnPersistence(Hashtable properties) This gets called after the data choice has been unpersisted
void	removeDataChangeListener(DataChangeListener listener) Remove the data change listener
void	setDataSource(DataSource s) Set the associated DataSource.

Methods inherited from class ucar.unidata.data.DataChoice

addCategory, addCurrentName, addParamNameToCategories, cloneDataChoices, createClone, getAllLevels, getCategories, getCurrentNames, getData, getData, getDataCategories, getDataCategories, getDataSelection, getDescription, getDisplayCategory, getFixedRequestProperties, getForUser, getId, getIndexedName, getName, getParent, getProperties, getProperty, getProperty, getProperty, getStringId, isEndUserFormula, mergeRequestProperties, setCategories, setDataCategories, setDataSelection, setDescription, setFixedRequestProperties, setId, setLevelSelection, setName, setObjectProperty, setParent, setProperties, setProperty, setProperty, setTimeSelection, toString

Methods inherited from class java.lang.Object

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

Field Detail

PROP_WRITEDATASOURCE

public static final String PROP_WRITEDATASOURCE

This is the XmlEncoder encoding property we use to determine if the datasource should be written out

See Also:

Constant Field Values

dataSource

protected DataSource dataSource

The data source

Constructor Detail

DirectDataChoice

public DirectDataChoice()

Default bean constructor; does nothing.

DirectDataChoice

public DirectDataChoice(DataSource dataSource,
                        Object id,
                        String name,
                        String description,
                        List categories,
                        Hashtable properties)

Create a new DirectDataChoice.

Parameters:

dataSource - The source of the data

id - The identifying object.

name - The short name of this choice.

description - The long description of this choice.

categories - List of DataCategorys.

properties - The properties for this data choice (may be null).

DirectDataChoice

public DirectDataChoice(DataSource dataSource,
                        Object id,
                        String name,
                        String description,
                        List categories)

Create a new DirectDataChoice.

Parameters:

dataSource - The source of the data

id - The identifying object.

name - The short name of this choice.

description - The long description of this choice.

categories - List of DataCategorys.

DirectDataChoice

public DirectDataChoice(DataSource dataSource,
                        Object id,
                        String name,
                        String description,
                        List categories,
                        DataSelection dataSelection)

Create a new DirectDataChoice.

Parameters:

dataSource - The source of the data

id - The identifying object.

name - The short name of this choice.

description - The long description of this choice.

categories - List of DataCategorys.

dataSelection - The subsetting criteria

DirectDataChoice

public DirectDataChoice(DataSource dataSource,
                        Object id,
                        String name,
                        String description,
                        List categories,
                        DataSelection dataSelection,
                        Hashtable properties)

Create a new DirectDataChoice.

Parameters:

dataSource - The source of the data

id - The identifying object.

name - The short name of this choice.

description - The long description of this choice.

categories - List of DataCategorys.

dataSelection - The subsetting criteria

properties - The properties for this data choice (may be null).

DirectDataChoice

public DirectDataChoice(DirectDataChoice other)

Copy constructor.

Parameters:

other - other DirectDataChoice to get state from

Method Detail

cloneMe

public DataChoice cloneMe()

Method for cloning. Calls copy constructor.

Specified by:

cloneMe in class DataChoice

Returns:

copy of this

getFinalDataChoices

public void getFinalDataChoices(List finalDataChoices)

Add to the given list all final data choices (i.e., the leafs of the datachoice tree)

Overrides:

getFinalDataChoices in class DataChoice

Parameters:

finalDataChoices - The list to add to

getFullDescription

public String getFullDescription()

Get the full description for this DataChoice. Overrides the superclass method.

Overrides:

getFullDescription in class DataChoice

Returns:

full description

getDataSources

public void getDataSources(List dataSources)

Add to the given list all the data sources

Overrides:

getDataSources in class DataChoice

Parameters:

dataSources - List to put data sources into

getAllLevels

public List getAllLevels(DataSelection dataSelection)

Get all the levels associated with this choice

Overrides:

getAllLevels in class DataChoice

Parameters:

dataSelection - data selection

Returns:

List of levels

getAllDateTimes

public List getAllDateTimes()

Get all the times associated with this choice.

Overrides:

getAllDateTimes in class DataChoice

Returns:

all times from the superclass or all times from the datasource

getSelectedDateTimes

public List getSelectedDateTimes()

Get all the selected times associated with this choice.

Overrides:

getSelectedDateTimes in class DataChoice

Returns:

the selected times

initAfterUnPersistence

public void initAfterUnPersistence(Hashtable properties)

This gets called after the data choice has been unpersisted

Overrides:

initAfterUnPersistence in class DataChoice

Parameters:

properties - Properties

getDataSource

public DataSource getDataSource()

Get the associated DataSource. Mostly used by XML persistence.

Returns:

the DataSource.

setDataSource

public void setDataSource(DataSource s)

Set the associated DataSource. Mostly used by XML persistence.

Parameters:

s - the DataSource.

getData

protected Data getData(DataCategory category,
                       DataSelection dataSelection,
                       Hashtable requestProperties)
                throws VisADException,
                       RemoteException,
                       DataCancelException

Get the data that this choice represents.

Specified by:

getData in class DataChoice

Parameters:

category - The DataCategory used to subset this call (usually not used but placed in here just in case it is needed.)

dataSelection - Allows one to subset the data request (e.g., asking for a smaller set of times, etc.)

requestProperties - Extra selection properties

Returns:

The data.

Throws:

DataCancelException - if the request to get data is canceled

RemoteException - problem accessing remote data

VisADException - problem creating the Data object

hashCode

public int hashCode()

Return the hashcode for this DirectDataChoice

Overrides:

hashCode in class DataChoice

Returns:

the hashcode

equals

public boolean equals(Object o)

Check for equality.

Overrides:

equals in class DataChoice

Parameters:

o - Object to check.

Returns:

true if o is equivalent

basicallyEquals

public boolean basicallyEquals(DataChoice that)

This just checks for basic equality. Things like id, datasource, etc.

Overrides:

basicallyEquals in class DataChoice

Parameters:

that - The object ot check for equality

Returns:

Is basically equals

addDataChangeListener

public void addDataChangeListener(DataChangeListener listener)

Add the data change listener

Specified by:

addDataChangeListener in class DataChoice

Parameters:

listener - listener to add

removeDataChangeListener

public void removeDataChangeListener(DataChangeListener listener)

Remove the data change listener

Specified by:

removeDataChangeListener in class DataChoice

Parameters:

listener - listener to remove