Package org.apache.calcite.sql.type

Class MapSqlType

java.lang.Object

org.apache.calcite.rel.type.RelDataTypeImpl

org.apache.calcite.sql.type.AbstractSqlType

org.apache.calcite.sql.type.MapSqlType

All Implemented Interfaces:

Serializable, Cloneable, RelDataType, RelDataTypeFamily

public class MapSqlType
extends AbstractSqlType

SQL map type.

See Also:

• Serialized Form

Field Summary

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

isNullable, typeName

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

digest, fieldList, innerDigest, NON_NULLABLE_SUFFIX

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

PRECISION_NOT_SPECIFIED, SCALE_NOT_SPECIFIED

Constructor Summary

Constructors

Constructor	Description
MapSqlType(RelDataType keyType, RelDataType valueType, boolean isNullable)	Creates a MapSqlType.

Method Summary

Modifier and Type	Method	Description
boolean	deepEquals(@Nullable Object obj)	Deep equality check for RelDataType digest.
int	deepHashCode()	Compute deep hash code for RelDataType digest.
protected void	generateTypeString(StringBuilder sb, boolean withDetail)	Generates a string representation of this type.
RelDataTypeFamily	getFamily()	Gets a canonical object representing the family of this type.
RelDataType	getKeyType()	Gets the key type if this type is a map, otherwise null.
RelDataType	getValueType()	Gets the value type if this type is a map, otherwise null.

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

getPrecedenceList, getSqlTypeName, isNullable

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

computeDigest, equals, extra, getCharset, getCollation, getComparability, getComponentType, getDigest, getField, getFieldCount, getFieldList, getFieldMap, getFieldNames, getFullTypeString, getIntervalQualifier, getPrecision, getScale, getSqlIdentifier, getStructKind, 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, getMeasureElementType, isMeasure

Constructor Details

MapSqlType

public MapSqlType(RelDataType keyType,
 RelDataType valueType,
 boolean isNullable)

Creates a MapSqlType. This constructor should only be called from a factory method.

Method Details

getValueType

public RelDataType getValueType()

Description copied from interface: RelDataType

Gets the value type if this type is a map, otherwise null.

Specified by:

getValueType in interface RelDataType

Overrides:

getValueType in class RelDataTypeImpl

Returns:

canonical type descriptor for value

getKeyType

public RelDataType getKeyType()

Description copied from interface: RelDataType

Gets the key type if this type is a map, otherwise null.

Specified by:

getKeyType in interface RelDataType

Overrides:

getKeyType in class RelDataTypeImpl

Returns:

canonical type descriptor for key

generateTypeString

protected void generateTypeString(StringBuilder sb,
 boolean withDetail)

Description copied from class: RelDataTypeImpl

Generates a string representation of this type.

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;

deepEquals

public boolean deepEquals(@Nullable Object obj)

Description copied from interface: RelDataType

Deep equality check for RelDataType digest.

Specified by:

deepEquals in interface RelDataType

Overrides:

deepEquals in class RelDataTypeImpl

Returns:

Whether the 2 RelDataTypes are equivalent or have the same digest.

See Also:

• RelDataType.deepHashCode()

deepHashCode

public int deepHashCode()

Description copied from interface: RelDataType

Compute deep hash code for RelDataType digest.

Specified by:

deepHashCode in interface RelDataType

Overrides:

deepHashCode in class RelDataTypeImpl

See Also:

• RelDataType.deepEquals(Object)

getFamily

public RelDataTypeFamily getFamily()

Description copied from interface: RelDataType

Gets a canonical object representing the family of this type. Two values can be compared if and only if their types are in the same family.

Specified by:

getFamily in interface RelDataType

Overrides:

getFamily in class AbstractSqlType

Returns:

canonical object representing type family, never null