org.apache.drill.exec.dotdrill

Class View.Field

java.lang.Object

org.apache.drill.exec.dotdrill.View.Field

Enclosing class:

View

public static class View.Field
extends Object

Constructor Summary

Constructors

Constructor and Description
Field(org.apache.calcite.rel.type.RelDataType dataType) Overloaded constructor for creation of fields which carry only about dataType and don't represent named columns.
Field(String name, org.apache.calcite.rel.type.RelDataType dataType)
Field(String name, org.apache.calcite.sql.type.SqlTypeName type, Integer precision, Integer scale, org.apache.calcite.avatica.util.TimeUnit startUnit, org.apache.calcite.avatica.util.TimeUnit endUnit, Integer fractionalSecondPrecision, Boolean isNullable, View.Field keyType, View.Field valueType)

Method Summary

Modifier and Type	Method and Description
org.apache.calcite.avatica.util.TimeUnit	getEndUnit() Gets the time range end unit of the type qualifier of the interval data type descriptor of this field (iff interval type).
Integer	getFractionalSecondPrecision() Gets the fractional second precision of the type qualifier of the interval data type descriptor of this field (iff interval type).
org.apache.calcite.sql.SqlIntervalQualifier	getIntervalQualifier() Gets the interval type qualifier of the interval data type descriptor of this field (iff interval type).
Boolean	getIsNullable() Gets the nullability of the data type desription of this field.
View.Field	getKeyType() Gets key type for fields whose type is SqlTypeName.MAP
String	getName() Gets the name of this field.
Integer	getPrecision() Gets the precision of the data type descriptor of this field.
Integer	getScale() Gets the numeric scale of the data type descriptor of this field, for numeric types.
org.apache.calcite.avatica.util.TimeUnit	getStartUnit() Gets the time range start unit of the type qualifier of the interval data type descriptor of this field (iff interval type).
org.apache.calcite.sql.type.SqlTypeName	getType() Gets the data type of this field.
View.Field	getValueType() Gets value type for fields whose type is SqlTypeName.MAP

Methods inherited from class java.lang.Object

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

Constructor Detail

Field

public Field(String name,
             org.apache.calcite.sql.type.SqlTypeName type,
             Integer precision,
             Integer scale,
             org.apache.calcite.avatica.util.TimeUnit startUnit,
             org.apache.calcite.avatica.util.TimeUnit endUnit,
             Integer fractionalSecondPrecision,
             Boolean isNullable,
             View.Field keyType,
             View.Field valueType)

Field

public Field(String name,
             org.apache.calcite.rel.type.RelDataType dataType)

Field

public Field(org.apache.calcite.rel.type.RelDataType dataType)

Overloaded constructor for creation of fields which carry only about dataType and don't represent named columns. Example of such usage is key and value types of Map columns.

Parameters:

dataType - field type

Method Detail

getName

public String getName()

Gets the name of this field.

getType

public org.apache.calcite.sql.type.SqlTypeName getType()

Gets the data type of this field. (Data type only; not full datatype descriptor.)

getPrecision

public Integer getPrecision()

Gets the precision of the data type descriptor of this field. The precision is the precision for a numeric type, the length for a string type, or the start unit precision for an interval type.

getScale

public Integer getScale()

Gets the numeric scale of the data type descriptor of this field, for numeric types.

getIntervalQualifier

public org.apache.calcite.sql.SqlIntervalQualifier getIntervalQualifier()

Gets the interval type qualifier of the interval data type descriptor of this field (iff interval type).

getStartUnit

public org.apache.calcite.avatica.util.TimeUnit getStartUnit()

Gets the time range start unit of the type qualifier of the interval data type descriptor of this field (iff interval type).

getEndUnit

public org.apache.calcite.avatica.util.TimeUnit getEndUnit()

Gets the time range end unit of the type qualifier of the interval data type descriptor of this field (iff interval type).

getFractionalSecondPrecision

public Integer getFractionalSecondPrecision()

Gets the fractional second precision of the type qualifier of the interval data type descriptor of this field (iff interval type). Gets the interval type descriptor's fractional second precision (iff interval type).

getIsNullable

public Boolean getIsNullable()

Gets the nullability of the data type desription of this field.

getKeyType

public View.Field getKeyType()

Gets key type for fields whose type is SqlTypeName.MAP

Returns:

key type of map

getValueType

public View.Field getValueType()

Gets value type for fields whose type is SqlTypeName.MAP

Returns:

value type of map