org.apache.beam.sdk.extensions.sql.impl.utils

Class CalciteUtils

java.lang.Object

org.apache.beam.sdk.extensions.sql.impl.utils.CalciteUtils

public class CalciteUtils
extends java.lang.Object

Utility methods for Calcite related operations.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	CalciteUtils.CharType A LogicalType corresponding to CHAR.
static class	CalciteUtils.DateType A LogicalType corresponding to DATE.
static class	CalciteUtils.TimestampWithLocalTzType A LogicalType corresponding to TIMESTAMP_WITH_LOCAL_TIME_ZONE.
static class	CalciteUtils.TimeType A LogicalType corresponding to TIME.
static class	CalciteUtils.TimeWithLocalTzType A LogicalType corresponding to TIME_WITH_LOCAL_TIME_ZONE.

Field Summary

Fields

Modifier and Type	Field and Description
static org.apache.beam.sdk.schemas.Schema.FieldType	BIG_INT
static org.apache.beam.sdk.schemas.Schema.FieldType	BOOLEAN
static org.apache.beam.sdk.schemas.Schema.FieldType	CHAR
static org.apache.beam.sdk.schemas.Schema.FieldType	DATE
static org.apache.beam.sdk.schemas.Schema.FieldType	DECIMAL
static org.apache.beam.sdk.schemas.Schema.FieldType	DOUBLE
static org.apache.beam.sdk.schemas.Schema.FieldType	FLOAT
static org.apache.beam.sdk.schemas.Schema.FieldType	INTEGER
static org.apache.beam.sdk.schemas.Schema.FieldType	SMALL_INT
static org.apache.beam.sdk.schemas.Schema.FieldType	TIME
static org.apache.beam.sdk.schemas.Schema.FieldType	TIME_WITH_LOCAL_TZ
static org.apache.beam.sdk.schemas.Schema.FieldType	TIMESTAMP
static org.apache.beam.sdk.schemas.Schema.FieldType	TIMESTAMP_WITH_LOCAL_TZ
static org.apache.beam.sdk.schemas.Schema.FieldType	TINY_INT
static org.apache.beam.sdk.schemas.Schema.FieldType	VARBINARY
static org.apache.beam.sdk.schemas.Schema.FieldType	VARCHAR

Constructor Summary

Constructors

Constructor and Description
CalciteUtils()

Method Summary

Modifier and Type	Method and Description
static boolean	isDateTimeType(org.apache.beam.sdk.schemas.Schema.FieldType fieldType) Returns true if the type is any of the various date time types.
static boolean	isStringType(org.apache.beam.sdk.schemas.Schema.FieldType fieldType)
static org.apache.calcite.rel.type.RelDataType	sqlTypeWithAutoCast(org.apache.calcite.rel.type.RelDataTypeFactory typeFactory, java.lang.reflect.Type rawType) SQL-Java type mapping, with specified Beam rules: 1.
static org.apache.calcite.rel.type.RelDataType	toCalciteRowType(org.apache.beam.sdk.schemas.Schema schema, org.apache.calcite.rel.type.RelDataTypeFactory dataTypeFactory) Create an instance of RelDataType so it can be used to create a table.
static org.apache.beam.sdk.schemas.Schema.Field	toField(org.apache.calcite.rel.type.RelDataTypeField calciteField)
static org.apache.beam.sdk.schemas.Schema.Field	toField(java.lang.String name, org.apache.calcite.rel.type.RelDataType calciteType)
static org.apache.beam.sdk.schemas.Schema.FieldType	toFieldType(org.apache.calcite.rel.type.RelDataType calciteType)
static org.apache.beam.sdk.schemas.Schema.FieldType	toFieldType(org.apache.calcite.sql.type.SqlTypeName sqlTypeName)
static org.apache.calcite.rel.type.RelDataType	toRelDataType(org.apache.calcite.rel.type.RelDataTypeFactory dataTypeFactory, org.apache.beam.sdk.schemas.Schema.FieldType fieldType)
static org.apache.beam.sdk.schemas.Schema	toSchema(org.apache.calcite.rel.type.RelDataType tableInfo) Generate Schema from RelDataType which is used to create table.
static org.apache.calcite.sql.type.SqlTypeName	toSqlTypeName(org.apache.beam.sdk.schemas.Schema.FieldType type)

Methods inherited from class java.lang.Object

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

Field Detail

TINY_INT

public static final org.apache.beam.sdk.schemas.Schema.FieldType TINY_INT

SMALL_INT

public static final org.apache.beam.sdk.schemas.Schema.FieldType SMALL_INT

INTEGER

public static final org.apache.beam.sdk.schemas.Schema.FieldType INTEGER

BIG_INT

public static final org.apache.beam.sdk.schemas.Schema.FieldType BIG_INT

FLOAT

public static final org.apache.beam.sdk.schemas.Schema.FieldType FLOAT

DOUBLE

public static final org.apache.beam.sdk.schemas.Schema.FieldType DOUBLE

DECIMAL

public static final org.apache.beam.sdk.schemas.Schema.FieldType DECIMAL

BOOLEAN

public static final org.apache.beam.sdk.schemas.Schema.FieldType BOOLEAN

VARBINARY

public static final org.apache.beam.sdk.schemas.Schema.FieldType VARBINARY

VARCHAR

public static final org.apache.beam.sdk.schemas.Schema.FieldType VARCHAR

CHAR

public static final org.apache.beam.sdk.schemas.Schema.FieldType CHAR

DATE

public static final org.apache.beam.sdk.schemas.Schema.FieldType DATE

TIME

public static final org.apache.beam.sdk.schemas.Schema.FieldType TIME

TIME_WITH_LOCAL_TZ

public static final org.apache.beam.sdk.schemas.Schema.FieldType TIME_WITH_LOCAL_TZ

TIMESTAMP

public static final org.apache.beam.sdk.schemas.Schema.FieldType TIMESTAMP

TIMESTAMP_WITH_LOCAL_TZ

public static final org.apache.beam.sdk.schemas.Schema.FieldType TIMESTAMP_WITH_LOCAL_TZ

Constructor Detail

CalciteUtils

public CalciteUtils()

Method Detail

isDateTimeType

public static boolean isDateTimeType(org.apache.beam.sdk.schemas.Schema.FieldType fieldType)

Returns true if the type is any of the various date time types.

isStringType

public static boolean isStringType(org.apache.beam.sdk.schemas.Schema.FieldType fieldType)

toSchema

public static org.apache.beam.sdk.schemas.Schema toSchema(org.apache.calcite.rel.type.RelDataType tableInfo)

Generate Schema from RelDataType which is used to create table.

toSqlTypeName

public static org.apache.calcite.sql.type.SqlTypeName toSqlTypeName(org.apache.beam.sdk.schemas.Schema.FieldType type)

toFieldType

public static org.apache.beam.sdk.schemas.Schema.FieldType toFieldType(org.apache.calcite.sql.type.SqlTypeName sqlTypeName)

toField

public static org.apache.beam.sdk.schemas.Schema.Field toField(org.apache.calcite.rel.type.RelDataTypeField calciteField)

toField

public static org.apache.beam.sdk.schemas.Schema.Field toField(java.lang.String name,
                                                               org.apache.calcite.rel.type.RelDataType calciteType)

toFieldType

public static org.apache.beam.sdk.schemas.Schema.FieldType toFieldType(org.apache.calcite.rel.type.RelDataType calciteType)

toCalciteRowType

public static org.apache.calcite.rel.type.RelDataType toCalciteRowType(org.apache.beam.sdk.schemas.Schema schema,
                                                                       org.apache.calcite.rel.type.RelDataTypeFactory dataTypeFactory)

Create an instance of RelDataType so it can be used to create a table.

toRelDataType

public static org.apache.calcite.rel.type.RelDataType toRelDataType(org.apache.calcite.rel.type.RelDataTypeFactory dataTypeFactory,
                                                                    org.apache.beam.sdk.schemas.Schema.FieldType fieldType)

sqlTypeWithAutoCast

public static org.apache.calcite.rel.type.RelDataType sqlTypeWithAutoCast(org.apache.calcite.rel.type.RelDataTypeFactory typeFactory,
                                                                          java.lang.reflect.Type rawType)

SQL-Java type mapping, with specified Beam rules:
1. redirect AbstractInstant to Date so Calcite can recognize it.

Parameters:

rawType -

Returns: