org.apache.drill.exec.physical.impl.scan.v3.schema

Enum ScanSchemaResolver.SchemaType

java.lang.Object

java.lang.Enum<ScanSchemaResolver.SchemaType>

org.apache.drill.exec.physical.impl.scan.v3.schema.ScanSchemaResolver.SchemaType

All Implemented Interfaces:

Serializable, Comparable<ScanSchemaResolver.SchemaType>

Enclosing class:

ScanSchemaResolver

public static enum ScanSchemaResolver.SchemaType
extends Enum<ScanSchemaResolver.SchemaType>

Indicates the source of the schema to be analyzed. Each schema type has subtly different rules. The schema type allows us to inject those differences inline within the resolution process. Also, each schema carries a tag used for error reporting.

Enum Constant Summary

Enum Constants

Enum Constant and Description
EARLY_READER_SCHEMA
FIRST_READER_SCHEMA
LENIENT_PROVIDED_SCHEMA
MISSING_COLS
READER_SCHEMA
STRICT_PROVIDED_SCHEMA

Method Summary

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

STRICT_PROVIDED_SCHEMA

public static final ScanSchemaResolver.SchemaType STRICT_PROVIDED_SCHEMA

LENIENT_PROVIDED_SCHEMA

public static final ScanSchemaResolver.SchemaType LENIENT_PROVIDED_SCHEMA

EARLY_READER_SCHEMA

public static final ScanSchemaResolver.SchemaType EARLY_READER_SCHEMA

FIRST_READER_SCHEMA

public static final ScanSchemaResolver.SchemaType FIRST_READER_SCHEMA

READER_SCHEMA

public static final ScanSchemaResolver.SchemaType READER_SCHEMA

MISSING_COLS

public static final ScanSchemaResolver.SchemaType MISSING_COLS

Method Detail

values

public static ScanSchemaResolver.SchemaType[] 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 (ScanSchemaResolver.SchemaType c : ScanSchemaResolver.SchemaType.values())
    System.out.println(c);

Returns:

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

valueOf

public static ScanSchemaResolver.SchemaType 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

source

public String source()