de.julielab.jcore.reader.db

Class DBMultiplier

java.lang.Object

org.apache.uima.analysis_component.AnalysisComponent_ImplBase

org.apache.uima.analysis_component.JCasMultiplier_ImplBase

de.julielab.jcore.reader.db.DBMultiplier

All Implemented Interfaces:

org.apache.uima.analysis_component.AnalysisComponent

public abstract class DBMultiplier
extends org.apache.uima.analysis_component.JCasMultiplier_ImplBase

A multiplier retrieving feature structures of type of RowBatch in its process(JCas) method. Each RowBatch lists IDs of documents to read and the table to read them from. The part of actual reading the documents into CAS instances is subject to implementation for extending classes. For this purpose, the iterator holding the actual document data, documentDataIterator, must be used to retrieve document data and use it to populate CAS instances in the AnalysisComponent.next() method.

Field Summary

Fields

Modifier and Type	Field and Description
protected String	dataTable
protected de.julielab.xmlData.dataBase.DataBaseConnector	dbc
protected de.julielab.xmlData.dataBase.DBCIterator<byte[][]>	documentDataIterator
protected boolean	initialized
protected boolean	readDataTable
protected String[]	schemaNames
protected String	tableName This is the name that the user has passed as the table to read to the multiplier reader.
protected String[]	tables

Constructor Summary

Constructors

Constructor and Description
DBMultiplier()

Method Summary

Modifier and Type	Method and Description
boolean	hasNext()
void	initialize(org.apache.uima.UimaContext aContext)
void	process(org.apache.uima.jcas.JCas aJCas)

Methods inherited from class org.apache.uima.analysis_component.JCasMultiplier_ImplBase

getCasInstancesRequired, getEmptyJCas, getRequiredCasInterface, process

Methods inherited from class org.apache.uima.analysis_component.AnalysisComponent_ImplBase

batchProcessComplete, collectionProcessComplete, destroy, getContext, getResultSpecification, reconfigure, setResultSpecification

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.uima.analysis_component.AnalysisComponent

next

Field Detail

dbc

protected de.julielab.xmlData.dataBase.DataBaseConnector dbc

documentDataIterator

protected de.julielab.xmlData.dataBase.DBCIterator<byte[][]> documentDataIterator

tables

protected String[] tables

schemaNames

protected String[] schemaNames

tableName

protected String tableName

This is the name that the user has passed as the table to read to the multiplier reader. This might be a data table or a subset table. The tables field always contains the data tables to read from.

readDataTable

protected boolean readDataTable

dataTable

protected String dataTable

initialized

protected boolean initialized

Constructor Detail

DBMultiplier

public DBMultiplier()

Method Detail

initialize

public void initialize(org.apache.uima.UimaContext aContext)
                throws org.apache.uima.resource.ResourceInitializationException

Specified by:

initialize in interface org.apache.uima.analysis_component.AnalysisComponent

Overrides:

initialize in class org.apache.uima.analysis_component.AnalysisComponent_ImplBase

Throws:

org.apache.uima.resource.ResourceInitializationException

process

public void process(org.apache.uima.jcas.JCas aJCas)
             throws org.apache.uima.analysis_engine.AnalysisEngineProcessException

Specified by:

process in class org.apache.uima.analysis_component.JCasMultiplier_ImplBase

Throws:

org.apache.uima.analysis_engine.AnalysisEngineProcessException

hasNext

public boolean hasNext()