jsynoptic.data
Class ExpressionDataSourceProvider

java.lang.Object
  jsynoptic.data.ExpressionDataSourceProvider

All Implemented Interfaces:

DataSourceProvider

public class ExpressionDataSourceProvider
extends java.lang.Object
implements DataSourceProvider

Used in serializing/deserializing expression data sources

Nested Class Summary

static class	ExpressionDataSourceProvider.ConflictListCellRenderer
protected static class	ExpressionDataSourceProvider.ConflictListModel
protected static class	ExpressionDataSourceProvider.VariableConflict

Field Summary

static java.util.ResourceBundle

resources

Constructor Summary

ExpressionDataSourceProvider()

Method Summary

java.lang.Object	getOptionalInformation(DataSource ds, DataSourceCollection dsc) Asks this provider some optional information about a datasource and possibly its collection.
DataSource	provide(java.lang.String id, java.lang.String dscId, java.lang.Object optionalInformation, DataSourcePool pool) Asks this provider to resolve a symbolic datasource reference.

Methods inherited from class java.lang.Object

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

Field Detail

resources

public static java.util.ResourceBundle resources

Constructor Detail

ExpressionDataSourceProvider

public ExpressionDataSourceProvider()

Method Detail

getOptionalInformation

public java.lang.Object getOptionalInformation(DataSource ds,
                                               DataSourceCollection dsc)

Description copied from interface: DataSourceProvider

Asks this provider some optional information about a datasource and possibly its collection.

Specified by:

getOptionalInformation in interface DataSourceProvider

Parameters:

ds - The datasource

dsc - The datasource collection, or null.

Returns:

null if this provider cannot provide optional information, an arbitrary object otherwise.

provide

public DataSource provide(java.lang.String id,
                          java.lang.String dscId,
                          java.lang.Object optionalInformation,
                          DataSourcePool pool)

Description copied from interface: DataSourceProvider

Asks this provider to resolve a symbolic datasource reference.

Specified by:

provide in interface DataSourceProvider

Parameters:

id - The symbolic id of a datasource

dscId - The symbolic id of a datasourceCollection. May be null

optionalInformation - Can be set to help this provider. May be null

pool - DataSourcePool in which to add the source and collection if they can be provided. May be null.

Returns:

The desired datasource if it can be provided, or null.