org.apache.gravitino.dto.rel.partitioning

Class Partitioning.SingleFieldPartitioning

java.lang.Object

org.apache.gravitino.dto.rel.partitioning.Partitioning.SingleFieldPartitioning

All Implemented Interfaces:

Partitioning, Expression, Transform

Direct Known Subclasses:

DayPartitioningDTO, HourPartitioningDTO, IdentityPartitioningDTO, MonthPartitioningDTO, YearPartitioningDTO

Enclosing interface:

Partitioning

public abstract static class Partitioning.SingleFieldPartitioning
extends java.lang.Object
implements Partitioning

A single field partitioning strategy.

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.gravitino.dto.rel.partitioning.Partitioning

Partitioning.SingleFieldPartitioning, Partitioning.Strategy

Nested classes/interfaces inherited from interface org.apache.gravitino.rel.expressions.transforms.Transform

Transform.SingleFieldTransform

Field Summary

Fields inherited from interface org.apache.gravitino.dto.rel.partitioning.Partitioning

EMPTY_PARTITIONING

Fields inherited from interface org.apache.gravitino.rel.expressions.Expression

EMPTY_EXPRESSION, EMPTY_NAMED_REFERENCE

Constructor Summary

Constructors

Constructor and Description
SingleFieldPartitioning()

Method Summary

Modifier and Type	Method and Description
Expression[]	arguments()
java.lang.String[]	fieldName()
java.lang.String	name()
void	validate(ColumnDTO[] columns) Validates the partitioning columns.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.gravitino.dto.rel.partitioning.Partitioning

strategy

Methods inherited from interface org.apache.gravitino.rel.expressions.transforms.Transform

assignments, children

Methods inherited from interface org.apache.gravitino.rel.expressions.Expression

references

Constructor Detail

SingleFieldPartitioning

public SingleFieldPartitioning()

Method Detail

fieldName

public java.lang.String[] fieldName()

Returns:

The field name of the partitioning.

validate

public void validate(ColumnDTO[] columns)
              throws java.lang.IllegalArgumentException

Validates the partitioning columns.

Specified by:

validate in interface Partitioning

Parameters:

columns - The columns to be validated.

Throws:

java.lang.IllegalArgumentException - If the columns are invalid, this exception is thrown.

name

public java.lang.String name()

Specified by:

name in interface Transform

Returns:

The name of the partitioning strategy.

arguments

public Expression[] arguments()

Specified by:

arguments in interface Transform

Returns:

The arguments of the partitioning strategy.