Package net.sourceforge.esw.collection

Provides the abilities to retrieve data from any data source, anywhere within the enterprise.

See:
Description

Interface Summary

IIOTransducer	Performs Transduction against a stream of data from either a Reader or a Writer.
IMetaCollection	Provides the abilities to retrieve data from any data source, anywhere within the enterprise.
IMetaResources	Defines static finals for the collection package
ITransactionalTransducer	Performs Transduction between a transactional data sourcees and an IMetaCollection instance.
ITransducer	Performs Transduction between a specific data source and an IMetaCollection instance.

Class Summary

AggregateTransactionManager	Aggregates a Transaction across multiple IMetaCollection instances.
AIOTransducer	Provides an abstract base class for implementors of the IIOTransducer interface.
AJDBCTransducer	Performs transduction between a JDBC data source and an IMetaCollection instance.
ATransducer	Abstract base class that transduces data between a specific external data source and an IMetaCollection instance.
ATransducerAdapter	Provides abstract base class abilities for Transducer Adapters.
DefaultMetaFactory	Defines the methods for creation of IMetaCollection instances.
DefaultTransducer	The default implementation of the ITransducer interface that throws TransducerExceptions if get() or put are invoked.
DelimitedTransducer	Performs delimited transduction against a stream of data; fields, rows, records, and other data dimensions that are indicated by embedded Stringinstance or char actors.
DictionaryTransducer	Transduces a dictionary (name=value) based data source.
FileTransducerAdapter	Provides file based access to ITransducer implementors.
FixedPositionTransducer	Transduces data that has a fixed position within a stream.
JDBCTransducer	Performs transduction between a JDBC data source and an IMetaCollection instance.
MailTransducer	Performs Transduction between a mail data source and an IMetaCollection instance.
MetaCollection	Default implementation of the IMetaCollection interface.
MetaFactory	Responsible for creation of IMetaCollection instances.
MetaUtil	Utility methods for Collections API.
NodeMetaCollection	Provides the abiliities of an IMetaCollection instance based off of a INode instance.
StringTransducerAdapter	Performs transduction to or against a String of data.
SystemPropertiesTransducer	Performs Transduction between the java.lang.System properties and an IMetaCollection instance.
URLQueryTransducer	Performs Transduction between a URL Query data source and an IMetaCollection instance.
URLTransducerAdapter	Performs Transduction to or against a URL.
XMLTransducer	Performs Transduction between a XML data source and an IMetaCollection instance.

Exception Summary

TransducerException

Represents the things that can go wrong during a transduction.

Package net.sourceforge.esw.collection Description

Provides the abilities to retrieve data from any data source, anywhere within the enterprise. Any data collection can be represented by a graph based structure. MetaCollections provides a very rich way to construct graphs, Thus any data of any kind can be held within an IMetaCollection instance. This package provides an elegant, efficient, consistent abstraction for access to external data regardless of its source, form, and representation.

The ITransducer implementors abstract the access of data into two methods: get() and put(). These methods work against an IMetaCollection instance to which the ITransducer instance is attached. The methods are also IMetaCollection instance centric. That is, the get() pulls data from the data source that the ITransducer instance represents and places it into the IMetaCollection instance, and put() takes data from the IMetaCollection instance and places it into the data source represented by the ITransducer instance.

The architecture provides default ITranducer implementors for XML data, JDBC data, Delimited data (like comma delimited), and fixed position data. See the ITranducer implementors for details on how to perform those transductions.