org.gcube.dataaccess.databases.sampler

Class Sampler

java.lang.Object

org.gcube.dataaccess.databases.sampler.Sampler

public class Sampler
extends Object

Class that allows to perform different types of Sample operations on a table: SampleOnTable, SmartSampleOnTable, RandomSampleOnTable

Constructor Summary

Constructors

Constructor and Description
Sampler()

Method Summary

Modifier and Type	Method and Description
List<String>	getListColumns()
List<Object>	randomSampleOnTable(ConnectionManager connection, org.hibernate.SessionFactory dbSession, String DBType, String tableName, String schemaName, long NumRows, List<String> DataTypeColumns)
List<Object>	sampleOnTable(ConnectionManager connection, org.hibernate.SessionFactory dbSession, String DBType, String tableName, String schemaName, List<String> DataTypeColumns)
List<Object>	smartSampleOnTable(ConnectionManager connection, org.hibernate.SessionFactory dbSession, String DBType, String tableName, String schemaName, long NumRows, List<String> DataTypeColumns)

Methods inherited from class java.lang.Object

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

Constructor Detail

Sampler

public Sampler()

Method Detail

sampleOnTable

public List<Object> sampleOnTable(ConnectionManager connection,
                                  org.hibernate.SessionFactory dbSession,
                                  String DBType,
                                  String tableName,
                                  String schemaName,
                                  List<String> DataTypeColumns)
                           throws Exception

Throws:

Exception

smartSampleOnTable

public List<Object> smartSampleOnTable(ConnectionManager connection,
                                       org.hibernate.SessionFactory dbSession,
                                       String DBType,
                                       String tableName,
                                       String schemaName,
                                       long NumRows,
                                       List<String> DataTypeColumns)
                                throws Exception

Throws:

Exception

randomSampleOnTable

public List<Object> randomSampleOnTable(ConnectionManager connection,
                                        org.hibernate.SessionFactory dbSession,
                                        String DBType,
                                        String tableName,
                                        String schemaName,
                                        long NumRows,
                                        List<String> DataTypeColumns)
                                 throws Exception

Throws:

Exception

getListColumns

public List<String> getListColumns()