com.hardcode.gdbms.engine.data.db
Class DBQuerySourceDefinition

java.lang.Object
  com.hardcode.gdbms.engine.data.AbstractDataSourceDefinition
      com.hardcode.gdbms.engine.data.db.DBTableSourceDefinition
          com.hardcode.gdbms.engine.data.db.DBQuerySourceDefinition

All Implemented Interfaces:

DataSourceDefinition

public class DBQuerySourceDefinition
extends DBTableSourceDefinition

Author:

Fernando González Cortés

Field Summary

java.lang.String

sql

Fields inherited from class com.hardcode.gdbms.engine.data.db.DBTableSourceDefinition

def, driverName

Constructor Summary

DBQuerySourceDefinition(java.lang.String name, DBSource def, java.lang.String sql, java.lang.String driverName)
Creates a new DBQuerySourceDefinition

Method Summary

DataSource	createDataSource(java.lang.String tableName, java.lang.String tableAlias) Creates a DataSource with the information of this object
void	freeResources() if any, frees the resources taken when the DataSource was created

Methods inherited from class com.hardcode.gdbms.engine.data.db.DBTableSourceDefinition

getSourceDefinition

Methods inherited from class com.hardcode.gdbms.engine.data.AbstractDataSourceDefinition

getDataSourceFactory, getName, setDataSourceFactory, setName

Methods inherited from class java.lang.Object

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

Field Detail

sql

public java.lang.String sql

Constructor Detail

DBQuerySourceDefinition

public DBQuerySourceDefinition(java.lang.String name,
                               DBSource def,
                               java.lang.String sql,
                               java.lang.String driverName)

Creates a new DBQuerySourceDefinition

Parameters:

name - Name of the data source in this system

sql - SQL instruction that defines the data source

driverName - driver to access the data

Method Detail

createDataSource

public DataSource createDataSource(java.lang.String tableName,
                                   java.lang.String tableAlias)
                            throws DataSourceCreationException

Description copied from interface: DataSourceDefinition

Creates a DataSource with the information of this object

Specified by:

createDataSource in interface DataSourceDefinition

Overrides:

createDataSource in class DBTableSourceDefinition

Parameters:

tableName - name of the DataSource

tableAlias - alias of the DataSource

Returns:

DataSource

Throws:

DataSourceCreationException

freeResources

public void freeResources()
                   throws DataSourceFinalizationException

Description copied from interface: DataSourceDefinition

if any, frees the resources taken when the DataSource was created

Specified by:

freeResources in interface DataSourceDefinition

Overrides:

freeResources in class AbstractDataSourceDefinition

Throws:

DataSourceFinalizationException - If the operation fails