org.apache.drill.exec.record

Enum AbstractRecordBatch.BatchState

java.lang.Object

java.lang.Enum<AbstractRecordBatch.BatchState>

org.apache.drill.exec.record.AbstractRecordBatch.BatchState

All Implemented Interfaces:

Serializable, Comparable<AbstractRecordBatch.BatchState>

Enclosing class:

AbstractRecordBatch<T extends PhysicalOperator>

protected static enum AbstractRecordBatch.BatchState
extends Enum<AbstractRecordBatch.BatchState>

Enum Constant Summary

Enum Constants

Enum Constant and Description
BUILD_SCHEMA Need to build schema and return.
DONE All work is done, no more data to be sent.
FIRST This is still the first data batch.
NOT_FIRST The first data batch has already been returned.
OUT_OF_MEMORY Out of Memory while building the Schema...Ouch!
STOP The query most likely failed, we need to propagate STOP to the root.

Method Summary

Methods

Modifier and Type	Method and Description
static AbstractRecordBatch.BatchState	valueOf(String name) Returns the enum constant of this type with the specified name.
static AbstractRecordBatch.BatchState[]	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

BUILD_SCHEMA

public static final AbstractRecordBatch.BatchState BUILD_SCHEMA

Need to build schema and return.

FIRST

public static final AbstractRecordBatch.BatchState FIRST

This is still the first data batch.

NOT_FIRST

public static final AbstractRecordBatch.BatchState NOT_FIRST

The first data batch has already been returned.

STOP

public static final AbstractRecordBatch.BatchState STOP

The query most likely failed, we need to propagate STOP to the root.

OUT_OF_MEMORY

public static final AbstractRecordBatch.BatchState OUT_OF_MEMORY

Out of Memory while building the Schema...Ouch!

DONE

public static final AbstractRecordBatch.BatchState DONE

All work is done, no more data to be sent.

Method Detail

values

public static AbstractRecordBatch.BatchState[] 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 (AbstractRecordBatch.BatchState c : AbstractRecordBatch.BatchState.values())
    System.out.println(c);

Returns:

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

valueOf

public static AbstractRecordBatch.BatchState 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