Class PrimaryKeyFactory

java.lang.Object

net.sf.jailer.datamodel.PrimaryKeyFactory

public class PrimaryKeyFactory
extends Object

Factory for PrimaryKeys. Builds the universal primary key as a super-set of all created primary key.

Author:

Ralf Wisser

Constructor Summary

Constructors

Constructor	Description
PrimaryKeyFactory(ExecutionContext executionContext)	Constructor.

Method Summary

Modifier and Type	Method	Description
PrimaryKey	createPrimaryKey(List<Column> columns, String tableName)	Constructs a new primary-key.
static void	createUPKScope(String extractionModelFile, ExecutionContext executionContext)	Creates a UPK scope by computing the closure of all subject tables in the extraction model and storing the resulting table names in the execution context.
PrimaryKey	getUniversalPrimaryKey(Session session)	Gets the primary-key to be used for the entity-table and closes the factory.

Methods inherited from class java.lang.Object

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

Constructor Details

PrimaryKeyFactory

public PrimaryKeyFactory(ExecutionContext executionContext)

Constructor.

Parameters:

executionContext - ExecutionContext (optional)

Method Details

createPrimaryKey

public PrimaryKey createPrimaryKey(List<Column> columns,
 String tableName)

Constructs a new primary-key.

Parameters:

columns - the primary-key columns

tableName - the name of the table owning the primary key

Returns:

a newly created primary-key

Throws:

IllegalStateException - if factory is closed

getUniversalPrimaryKey

public PrimaryKey getUniversalPrimaryKey(Session session)

Gets the primary-key to be used for the entity-table and closes the factory.

Parameters:

session - for guessing null-values of columns

Returns:

the universal primary key

createUPKScope

public static void createUPKScope(String extractionModelFile,
 ExecutionContext executionContext)
                           throws MalformedURLException,
IOException

Creates a UPK scope by computing the closure of all subject tables in the extraction model and storing the resulting table names in the execution context.

Parameters:

extractionModelFile - path to the extraction model file

executionContext - the execution context to store the UPK domain into

Throws:

MalformedURLException - if the extraction model file URL is malformed

IOException - if an I/O error occurs while reading the extraction model