org.dashbuilder.dataset.service

Interface DataSetLookupServices

public interface DataSetLookupServices

Data set lookup services

Method Summary

Modifier and Type	Method and Description
org.dashbuilder.dataset.DataSet	lookupDataSet(org.dashbuilder.dataset.def.DataSetDef def, org.dashbuilder.dataset.DataSetLookup lookup) Load a data set and apply several operations (filter, sort, group, ...) on top of it for a given definition.
org.dashbuilder.dataset.DataSet	lookupDataSet(org.dashbuilder.dataset.DataSetLookup lookup) Apply a sequence of operations (filter, sort, group, ...) on a remote data set.
org.dashbuilder.dataset.DataSetMetadata	lookupDataSetMetadata(String uuid) Same as lookupDataSet but only retrieves the metadata of the resulting data set.

Method Detail

lookupDataSet

org.dashbuilder.dataset.DataSet lookupDataSet(org.dashbuilder.dataset.DataSetLookup lookup)
                                       throws Exception

Apply a sequence of operations (filter, sort, group, ...) on a remote data set.

Returns:

A brand new data set with all the calculations applied.

Throws:

Exception

lookupDataSet

org.dashbuilder.dataset.DataSet lookupDataSet(org.dashbuilder.dataset.def.DataSetDef def,
                                              org.dashbuilder.dataset.DataSetLookup lookup)
                                       throws Exception

Load a data set and apply several operations (filter, sort, group, ...) on top of it for a given definition. Index and cache are not used.

Returns:

null, if the data set can be retrieved.

Throws:

Exception

lookupDataSetMetadata

org.dashbuilder.dataset.DataSetMetadata lookupDataSetMetadata(String uuid)
                                                       throws Exception

Same as lookupDataSet but only retrieves the metadata of the resulting data set.

Returns:

A DataSetMetadata instance containing general information about the data set.

Throws:

Exception