org.apache.drill.exec.store.sys

Enum SystemTable

java.lang.Object

java.lang.Enum<SystemTable>

org.apache.drill.exec.store.sys.SystemTable

All Implemented Interfaces:

Serializable, Comparable<SystemTable>

public enum SystemTable
extends Enum<SystemTable>

An enumeration of all tables in Drill's system ("sys") schema.

OPTION, DRILLBITS and VERSION are local tables available on every Drillbit. MEMORY and THREADS are distributed tables with one record on every Drillbit.

Enum Constant Summary

Enum Constants

Enum Constant and Description
BOOT
DRILLBITS
INTERNAL_OPTIONS
INTERNAL_OPTIONS_VAL
MEMORY
OPTION
OPTION_VAL
THREADS
VERSION

Method Summary

Methods

Modifier and Type	Method and Description
Iterator<Object>	getIterator(FragmentContext context)
Class<?>	getPojoClass()
String	getTableName()
boolean	isDistributed()
static SystemTable	valueOf(String name) Returns the enum constant of this type with the specified name.
static SystemTable[]	values() Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

OPTION

public static final SystemTable OPTION

OPTION_VAL

public static final SystemTable OPTION_VAL

INTERNAL_OPTIONS

public static final SystemTable INTERNAL_OPTIONS

INTERNAL_OPTIONS_VAL

public static final SystemTable INTERNAL_OPTIONS_VAL

BOOT

public static final SystemTable BOOT

DRILLBITS

public static final SystemTable DRILLBITS

VERSION

public static final SystemTable VERSION

MEMORY

public static final SystemTable MEMORY

THREADS

public static final SystemTable THREADS

Method Detail

values

public static SystemTable[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (SystemTable c : SystemTable.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static SystemTable valueOf(String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum type has no constant with the specified name

NullPointerException - if the argument is null

getIterator

public Iterator<Object> getIterator(FragmentContext context)

getTableName

public String getTableName()

isDistributed

public boolean isDistributed()

getPojoClass

public Class<?> getPojoClass()