Class ExtractionModel

java.lang.Object

net.sf.jailer.extractionmodel.ExtractionModel

public class ExtractionModel
extends Object

Extraction-model, defines the subject and the RestrictionModel of an extraction.

Author:

Ralf Wisser

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	ExtractionModel.AdditionalSubject	Additional Subject.
static class	ExtractionModel.IncompatibleModelException

Field Summary

Fields

Modifier and Type	Field	Description
List<ExtractionModel.AdditionalSubject>	additionalSubjects	Additional Subjects.
final DataModel	dataModel	The restricted data-model to be used for extraction.
final Table	subject	The table to read from.
SubjectLimitDefinition	subjectLimitDefinition	Subject Limit Definition
final int[]	version	Version.

Constructor Summary

Constructors

Constructor	Description
ExtractionModel(String fileName, Map<String,String> sourceSchemaMapping, Map<String,String> parameters, ExecutionContext executionContext)	Constructor.
ExtractionModel(URL modelURL, Map<String,String> sourceSchemaMapping, Map<String,String> parameters, ExecutionContext executionContext, boolean failOnMissingSubject)	Constructor.
ExtractionModel(DataModel dataModel, ExecutionContext executionContext)	Constructor for empty restriction models.

Method Summary

Modifier and Type	Method	Description
String	getCondition()	Gets the subject condition.
String	getSubjectTableName()	Gets the name of the subject table, in case the subject table is unknown in the data model.
static String	loadDatamodelFolder(String fileName, ExecutionContext executionContext)	Loads the data model folder name from an extraction model file.

Methods inherited from class java.lang.Object

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

Field Details

subject

public final Table subject

The table to read from.

subjectLimitDefinition

public SubjectLimitDefinition subjectLimitDefinition

Subject Limit Definition

additionalSubjects

public List<ExtractionModel.AdditionalSubject> additionalSubjects

Additional Subjects.

dataModel

public final DataModel dataModel

The restricted data-model to be used for extraction.

version

public final int[] version

Version.

Constructor Details

ExtractionModel

public ExtractionModel(DataModel dataModel,
 ExecutionContext executionContext)

Constructor for empty restriction models.

Parameters:

dataModel - the data model to restrict

ExtractionModel

public ExtractionModel(String fileName,
 Map<String,String> sourceSchemaMapping,
 Map<String,String> parameters,
 ExecutionContext executionContext)
                throws IOException

Constructor.

Parameters:

fileName - the name of the model-file

parameters - apply this parameter-value mapping to all restriction conditions, XML templates and filters

Throws:

IOException

ExtractionModel

public ExtractionModel(URL modelURL,
 Map<String,String> sourceSchemaMapping,
 Map<String,String> parameters,
 ExecutionContext executionContext,
 boolean failOnMissingSubject)
                throws IOException

Constructor.

Parameters:

modelURL - the URL of the model-file

parameters - apply this parameter-value mapping to all restriction conditions, XML templates and filters

Throws:

IOException

Method Details

loadDatamodelFolder

public static String loadDatamodelFolder(String fileName,
 ExecutionContext executionContext)
                                  throws IOException

Loads the data model folder name from an extraction model file.

Parameters:

fileName - the name of the extraction model file

executionContext - the execution context

Returns:

the data model folder name, or null if not specified in the file

Throws:

IOException - if an I/O error occurs or the file is not a valid extraction model

getCondition

public String getCondition()

Gets the subject condition.

Returns:

the subject condition

getSubjectTableName

public String getSubjectTableName()

Gets the name of the subject table, in case the subject table is unknown in the data model.

Returns:

the subject table name, or null if the subject table is known