org.apache.drill.exec.store.avro

Class AvroTypeHelper

java.lang.Object

org.apache.drill.exec.store.avro.AvroTypeHelper

public final class AvroTypeHelper
extends Object

Utility class for working with Avro data types.

Field Summary

Fields

Modifier and Type	Field and Description
static TypeProtos.MajorType	MAJOR_TYPE_BIGINT_OPTIONAL
static TypeProtos.MajorType	MAJOR_TYPE_BIGINT_REPEATED
static TypeProtos.MajorType	MAJOR_TYPE_BIGINT_REQUIRED
static TypeProtos.MajorType	MAJOR_TYPE_BOOL_OPTIONAL
static TypeProtos.MajorType	MAJOR_TYPE_BOOL_REPEATED
static TypeProtos.MajorType	MAJOR_TYPE_BOOL_REQUIRED
static TypeProtos.MajorType	MAJOR_TYPE_FLOAT4_OPTIONAL
static TypeProtos.MajorType	MAJOR_TYPE_FLOAT4_REPEATED
static TypeProtos.MajorType	MAJOR_TYPE_FLOAT4_REQUIRED
static TypeProtos.MajorType	MAJOR_TYPE_FLOAT8_OPTIONAL
static TypeProtos.MajorType	MAJOR_TYPE_FLOAT8_REPEATED
static TypeProtos.MajorType	MAJOR_TYPE_FLOAT8_REQUIRED
static TypeProtos.MajorType	MAJOR_TYPE_INT_OPTIONAL
static TypeProtos.MajorType	MAJOR_TYPE_INT_REPEATED
static TypeProtos.MajorType	MAJOR_TYPE_INT_REQUIRED
static TypeProtos.MajorType	MAJOR_TYPE_VARBINARY_OPTIONAL
static TypeProtos.MajorType	MAJOR_TYPE_VARBINARY_REPEATED
static TypeProtos.MajorType	MAJOR_TYPE_VARBINARY_REQUIRED
static TypeProtos.MajorType	MAJOR_TYPE_VARCHAR_OPTIONAL
static TypeProtos.MajorType	MAJOR_TYPE_VARCHAR_REPEATED
static TypeProtos.MajorType	MAJOR_TYPE_VARCHAR_REQUIRED

Method Summary

Methods

Modifier and Type	Method and Description
static TypeProtos.MajorType	getFieldMajorType(org.apache.avro.Schema.Field field, TypeProtos.DataMode mode) Maintains a mapping between Avro types and Drill types.
static TypeProtos.MajorType	getFieldMajorType(org.apache.avro.Schema.Type type, TypeProtos.DataMode mode) Maintains a mapping between Avro types and Drill types.

Methods inherited from class java.lang.Object

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

Field Detail

MAJOR_TYPE_BOOL_OPTIONAL

public static final TypeProtos.MajorType MAJOR_TYPE_BOOL_OPTIONAL

MAJOR_TYPE_BOOL_REQUIRED

public static final TypeProtos.MajorType MAJOR_TYPE_BOOL_REQUIRED

MAJOR_TYPE_BOOL_REPEATED

public static final TypeProtos.MajorType MAJOR_TYPE_BOOL_REPEATED

MAJOR_TYPE_INT_OPTIONAL

public static final TypeProtos.MajorType MAJOR_TYPE_INT_OPTIONAL

MAJOR_TYPE_INT_REQUIRED

public static final TypeProtos.MajorType MAJOR_TYPE_INT_REQUIRED

MAJOR_TYPE_INT_REPEATED

public static final TypeProtos.MajorType MAJOR_TYPE_INT_REPEATED

MAJOR_TYPE_BIGINT_OPTIONAL

public static final TypeProtos.MajorType MAJOR_TYPE_BIGINT_OPTIONAL

MAJOR_TYPE_BIGINT_REQUIRED

public static final TypeProtos.MajorType MAJOR_TYPE_BIGINT_REQUIRED

MAJOR_TYPE_BIGINT_REPEATED

public static final TypeProtos.MajorType MAJOR_TYPE_BIGINT_REPEATED

MAJOR_TYPE_FLOAT4_OPTIONAL

public static final TypeProtos.MajorType MAJOR_TYPE_FLOAT4_OPTIONAL

MAJOR_TYPE_FLOAT4_REQUIRED

public static final TypeProtos.MajorType MAJOR_TYPE_FLOAT4_REQUIRED

MAJOR_TYPE_FLOAT4_REPEATED

public static final TypeProtos.MajorType MAJOR_TYPE_FLOAT4_REPEATED

MAJOR_TYPE_FLOAT8_OPTIONAL

public static final TypeProtos.MajorType MAJOR_TYPE_FLOAT8_OPTIONAL

MAJOR_TYPE_FLOAT8_REQUIRED

public static final TypeProtos.MajorType MAJOR_TYPE_FLOAT8_REQUIRED

MAJOR_TYPE_FLOAT8_REPEATED

public static final TypeProtos.MajorType MAJOR_TYPE_FLOAT8_REPEATED

MAJOR_TYPE_VARBINARY_OPTIONAL

public static final TypeProtos.MajorType MAJOR_TYPE_VARBINARY_OPTIONAL

MAJOR_TYPE_VARBINARY_REQUIRED

public static final TypeProtos.MajorType MAJOR_TYPE_VARBINARY_REQUIRED

MAJOR_TYPE_VARBINARY_REPEATED

public static final TypeProtos.MajorType MAJOR_TYPE_VARBINARY_REPEATED

MAJOR_TYPE_VARCHAR_OPTIONAL

public static final TypeProtos.MajorType MAJOR_TYPE_VARCHAR_OPTIONAL

MAJOR_TYPE_VARCHAR_REQUIRED

public static final TypeProtos.MajorType MAJOR_TYPE_VARCHAR_REQUIRED

MAJOR_TYPE_VARCHAR_REPEATED

public static final TypeProtos.MajorType MAJOR_TYPE_VARCHAR_REPEATED

Method Detail

getFieldMajorType

public static TypeProtos.MajorType getFieldMajorType(org.apache.avro.Schema.Field field,
                                     TypeProtos.DataMode mode)

Maintains a mapping between Avro types and Drill types. Given an Avro data type, this method will return the corresponding Drill field major type.

Parameters:

field - Avro field

Returns:

Major type or null if no corresponding type

getFieldMajorType

public static TypeProtos.MajorType getFieldMajorType(org.apache.avro.Schema.Type type,
                                     TypeProtos.DataMode mode)

Maintains a mapping between Avro types and Drill types. Given an Avro data type, this method will return the corresponding Drill field major type.

Parameters:

type - Avro type

mode - Data mode

Returns:

Drill major type or null if no corresponding type