org.apache.drill.exec.util

Class Utilities

java.lang.Object

org.apache.drill.exec.util.Utilities

public class Utilities
extends Object

Field Summary

Fields

Modifier and Type	Field and Description
static String	COL_NULL_ERROR
static SchemaPath	STAR_COLUMN

Constructor Summary

Constructors

Constructor and Description
Utilities()

Method Summary

Methods

Modifier and Type	Method and Description
static BitControl.QueryContextInformation	createQueryContextInfo(String defaultSchemaName, String sessionId) Create QueryContextInformation with given defaultSchemaName.
static String	getDrillVersion() Read the manifest file and get the Drill version number
static String	getFileNameForQueryFragment(FragmentContext context, String location, String tag)
static boolean	isStarQuery(Collection<SchemaPath> projected) Return true if list of schema path has star column.

Methods inherited from class java.lang.Object

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

Field Detail

STAR_COLUMN

public static final SchemaPath STAR_COLUMN

COL_NULL_ERROR

public static final String COL_NULL_ERROR

See Also:

Constant Field Values

Constructor Detail

Utilities

public Utilities()

Method Detail

getFileNameForQueryFragment

public static String getFileNameForQueryFragment(FragmentContext context,
                                 String location,
                                 String tag)

createQueryContextInfo

public static BitControl.QueryContextInformation createQueryContextInfo(String defaultSchemaName,
                                                        String sessionId)

Create QueryContextInformation with given defaultSchemaName. Rest of the members of the QueryContextInformation is derived from the current state of the process.

Parameters:

defaultSchemaName -

Returns:

getDrillVersion

public static String getDrillVersion()

Read the manifest file and get the Drill version number

Returns:

isStarQuery

public static boolean isStarQuery(Collection<SchemaPath> projected)

Return true if list of schema path has star column.

Parameters:

projected -

Returns: