Package org.apache.calcite.sql.type

Class MeasureSqlType

java.lang.Object

org.apache.calcite.rel.type.RelDataTypeImpl

org.apache.calcite.sql.type.AbstractSqlType

org.apache.calcite.sql.type.MeasureSqlType

All Implemented Interfaces:

Serializable, Cloneable, RelDataType, RelDataTypeFamily

public class MeasureSqlType
extends AbstractSqlType

Measure SQL type.

The type serves as a tag that the measure must be expanded into an expression before use.

See Also:

• Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
protected final com.google.common.collect.ImmutableList<? extends RelDataType>	types

Fields inherited from class org.apache.calcite.sql.type.AbstractSqlType

isNullable, typeName

Fields inherited from class org.apache.calcite.rel.type.RelDataTypeImpl

digest, fieldList, NON_NULLABLE_SUFFIX

Fields inherited from interface org.apache.calcite.rel.type.RelDataType

PRECISION_NOT_SPECIFIED, SCALE_NOT_SPECIFIED

Method Summary

Modifier and Type	Method	Description
protected void	generateTypeString(StringBuilder sb, boolean withDetail)	Generates a string representation of this type.
RelDataType	getMeasureElementType()	Gets the element type if this type is a measure, otherwise null.

Methods inherited from class org.apache.calcite.sql.type.AbstractSqlType

getFamily, getPrecedenceList, getSqlTypeName, isNullable

Methods inherited from class org.apache.calcite.rel.type.RelDataTypeImpl

computeDigest, equals, extra, getCharset, getCollation, getComparability, getComponentType, getField, getFieldCount, getFieldList, getFieldMap, getFieldNames, getFullTypeString, getIntervalQualifier, getKeyType, getPrecision, getScale, getSqlIdentifier, getStructKind, getValueType, hashCode, isDynamicStruct, isStruct, proto, proto, proto, proto, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.apache.calcite.rel.type.RelDataType

equalsSansFieldNames, equalsSansFieldNamesAndNullability, isMeasure

Field Details

types

protected final com.google.common.collect.ImmutableList<? extends RelDataType> types

Method Details

getMeasureElementType

public RelDataType getMeasureElementType()

Description copied from interface: RelDataType

Gets the element type if this type is a measure, otherwise null.

Returns:

canonical type descriptor for the value used in the measure

generateTypeString

protected void generateTypeString(StringBuilder sb,
 boolean withDetail)

Generates a string representation of this type.

Generate, for example, MEASURE<INTEGER>.

Specified by:

generateTypeString in class RelDataTypeImpl

Parameters:

sb - StringBuilder into which to generate the string

withDetail - when true, all detail information needed to compute a unique digest (and return from getFullTypeString) should be included;