Package de.unidu.is.retrieval

Provides a unique interface for interacting an with XML retrieval engines.

See:
Description

Interface Summary

AsyncRetriever	An asynchronous variant of , an interface for abstracting from different XML-based IR engines (e.g. the XML PIRE extension, HyREX).
IR	An interface for abstracting from different XML-based IR engines (e.g. the XML PIRE extension, HyREX).
MomentsIR	An interface for abstracting from different XML-based IR engines (e.g. the XML PIRE extension, HyREX).
QueryNode	A node in a query representation, as the root of a subtree.
Retriever	An interface for abstracting from different XML-based IR engines (e.g. the XML PIRE extension, HyREX).
RetrieverUIMetadata	This interface describes metadata for a retriever which can be used by UIs for a reasonable handling of queries and documents.

Class Summary

AbstractRetriever	An abstract gateway to retrievers.
AbstractRetrieverUIMetadata	An abstract class describing metadata for a MIND retriever which can be used by UIs for a reasonable handling of queries and documents.
AndQueryNode	A query node representing an AND.
Async2SyncRetriever	A synchronous variant of an asynchronous retriever.
BooleanQueryNode	A query node representating a Boolean connector.
DTDSchema	A schema parsed from a DTD.
Indexer	A class which can be called for indexing an XML collection.
KeywordQuery	A keyword-based query.
OrQueryNode	A query node representing an OR.
ProbDoc	A (document ID,weight) pair.
Query	An abstract query class.
QueryCondition	A single query condition.
Schema	A schema definition.
SchemaElement	A schema element, having a name, corresponding to a datatype, and having a (potentially empty) list of operator names (from the list of operators supported by the corresponding datatype).
StructuredQuery	A XIRQL structured (Boolean-style) query, defined by a tree/graph on query nodes.
Sync2AsyncRetriever	An asynchronous interface to an existing synchronous retriever object.
WeightedQueryCondition	A weighted query condition.
WSumQuery	A XIRQL weighted-sum query.
XIRQLQuery	An abstract XIRQL query.
XIRQLStringQuery	A XIRQL query defined by a string.
XMLDoc	A (document ID,xml document) pair.

Exception Summary

DocumentMismatchException	Signals that the document is not a valid document, or does not match its schema.
DocumentNotFoundException	Signals that the document could not be found.
DocumentNotStorableException	Signals that the document could not be stored.
IndexException	Signals that there is an problem accessing the IR index.
UnsupportedQueryException	Signals that the query type is not supported.

Package de.unidu.is.retrieval Description

Provides a unique interface for interacting an with XML retrieval engines.