org.teiid.dqp.internal.process

Class MetaDataProcessor

java.lang.Object

org.teiid.dqp.internal.process.MetaDataProcessor

public class MetaDataProcessor
extends Object

Handles MetaDataMessages on behalf of DQPCore.

Field Summary

Fields

Modifier and Type	Field and Description
static String	XML_COLUMN_NAME

Constructor Summary

Constructors

Constructor and Description
MetaDataProcessor(DQPCore requestManager, SessionAwareCache<PreparedPlan> planCache, String vdbName, Object vdbVersion)

Method Summary

Modifier and Type	Method and Description
Map<Integer,Object>	getDefaultColumn(String tableName, String columnName, Class<?> javaType)
Map<Integer,Object>	getDefaultColumn(String tableName, String columnName, String columnLabel, Class<?> javaType)
static void	setColumnMetadata(Column column, Expression symbol, QueryMetadataInterface metadata) Set the easily determined metadata from symbol on the given Column
static void	updateMetadataAcrossBranches(SetQuery originalCommand, List<Column> columns, QueryMetadataInterface metadata)

Methods inherited from class java.lang.Object

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

Field Detail

XML_COLUMN_NAME

public static final String XML_COLUMN_NAME

See Also:

Constant Field Values

Constructor Detail

MetaDataProcessor

public MetaDataProcessor(DQPCore requestManager,
                         SessionAwareCache<PreparedPlan> planCache,
                         String vdbName,
                         Object vdbVersion)

Method Detail

updateMetadataAcrossBranches

public static void updateMetadataAcrossBranches(SetQuery originalCommand,
                                                List<Column> columns,
                                                QueryMetadataInterface metadata)
                                         throws TeiidComponentException

Throws:

TeiidComponentException

setColumnMetadata

public static void setColumnMetadata(Column column,
                                     Expression symbol,
                                     QueryMetadataInterface metadata)
                              throws QueryMetadataException,
                                     TeiidComponentException

Set the easily determined metadata from symbol on the given Column

Parameters:

column -

symbol -

metadata -

Throws:

QueryMetadataException

TeiidComponentException

getDefaultColumn

public Map<Integer,Object> getDefaultColumn(String tableName,
                                            String columnName,
                                            Class<?> javaType)

getDefaultColumn

public Map<Integer,Object> getDefaultColumn(String tableName,
                                            String columnName,
                                            String columnLabel,
                                            Class<?> javaType)