org.apache.gravitino.dto.rel.partitioning

Class FunctionPartitioningDTO

java.lang.Object

org.apache.gravitino.dto.rel.partitioning.FunctionPartitioningDTO

All Implemented Interfaces:

Partitioning, Expression, Transform

public final class FunctionPartitioningDTO
extends java.lang.Object
implements Partitioning

Data transfer object for function partitioning.

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

Method Summary

Modifier and Type	Method and Description
FunctionArg[]	args() Returns the arguments of the function.
Expression[]	arguments() Returns the arguments of the function.
java.lang.String	functionName() Returns the name of the function.
java.lang.String	name() Returns the name of the function.
static FunctionPartitioningDTO	of(java.lang.String functionName, FunctionArg... args) Creates a new function partitioning DTO.
Partitioning.Strategy	strategy() Returns the strategy of the partitioning.
void	validate(ColumnDTO[] columns) Validates the function partitioning.

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.rel.expressions.transforms.Transform

assignments, children

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

references

Method Detail

of

public static FunctionPartitioningDTO of(java.lang.String functionName,
                                         FunctionArg... args)

Creates a new function partitioning DTO.

Parameters:

functionName - The name of the function.

args - The arguments of the function.

Returns:

The function partitioning DTO.

functionName

public java.lang.String functionName()

Returns the name of the function.

Returns:

The name of the function.

args

public FunctionArg[] args()

Returns the arguments of the function.

Returns:

The arguments of the function.

name

public java.lang.String name()

Returns the name of the function.

Specified by:

name in interface Transform

Returns:

The name of the function.

arguments

public Expression[] arguments()

Returns the arguments of the function.

Specified by:

arguments in interface Transform

Returns:

The arguments of the function.

strategy

public Partitioning.Strategy strategy()

Returns the strategy of the partitioning.

Specified by:

strategy in interface Partitioning

Returns:

The strategy of the partitioning.

validate

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

Validates the function partitioning.

Specified by:

validate in interface Partitioning

Parameters:

columns - The columns to be validated.

Throws:

java.lang.IllegalArgumentException - If the function partitioning is invalid.