RelCrossType (Apache Calcite API)

java.lang.Object

org.apache.calcite.rel.type.RelDataTypeImpl

org.apache.calcite.rel.type.RelCrossType

All Implemented Interfaces:: RelDataType, RelDataTypeFamily

public class RelCrossType extends RelDataTypeImpl

Type of the cartesian product of two or more sets of records.

Its fields are those of its constituent records, but unlike a RelRecordType, those fields' names are not necessarily distinct.

Field Summary

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
Constructor Summary

Constructors

Constructor

Description

RelCrossType(List<RelDataType> types, List<RelDataTypeField> fields)

Creates a cartesian product type.
Method Summary

Modifier and Type

Method

Description

protected void

generateTypeString(StringBuilder sb, boolean withDetail)

Generates a string representation of this type.

List<RelDataType>

getTypes()

Returns the contained types.

boolean

isStruct()

Queries whether this is a structured type.

Methods inherited from class org.apache.calcite.rel.type.RelDataTypeImpl
computeDigest, equals, extra, getCharset, getCollation, getComparability, getComponentType, getFamily, getField, getFieldCount, getFieldList, getFieldMap, getFieldNames, getFullTypeString, getIntervalQualifier, getKeyType, getPrecedenceList, getPrecision, getScale, getSqlIdentifier, getSqlTypeName, getStructKind, getValueType, hashCode, isDynamicStruct, isNullable, 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, getMeasureElementType

Constructor Details
- RelCrossType
  
  public RelCrossType(List<RelDataType> types, List<RelDataTypeField> fields)
  
  Creates a cartesian product type. This should only be called from a factory method.
Method Details
- isStruct
  
  public boolean isStruct()
  
  Description copied from interface: RelDataType
  
  Queries whether this is a structured type.
  
  Specified by:
  
  isStruct in interface RelDataType
  
  Overrides:
  
  isStruct in class RelDataTypeImpl
  
  Returns:
  
  whether this type has fields; examples include rows and user-defined structured types in SQL, and classes in Java
- getTypes
  
  public List<RelDataType> getTypes()
  
  Returns the contained types.
  
  Returns:
  
  data types.
- 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;