Package org.apache.gravitino.dto.rel.expressions

Class LiteralDTO

java.lang.Object

org.apache.gravitino.dto.rel.expressions.LiteralDTO

All Implemented Interfaces:

FunctionArg, Expression, Literal<String>

public class LiteralDTO
extends Object
implements Literal<String>, FunctionArg

Represents a Literal Data Transfer Object (DTO) that implements the Literal interface.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	LiteralDTO.Builder	Builder for LiteralDTO.

Nested classes/interfaces inherited from interface org.apache.gravitino.dto.rel.expressions.FunctionArg

FunctionArg.ArgType

Field Summary

Fields

Modifier and Type	Field	Description
static final LiteralDTO	NULL	An instance of LiteralDTO with a value of "NULL" and a data type of Types.NullType.get().

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

EMPTY_EXPRESSION, EMPTY_NAMED_REFERENCE

Fields inherited from interface org.apache.gravitino.dto.rel.expressions.FunctionArg

EMPTY_ARGS

Method Summary

Modifier and Type	Method	Description
FunctionArg.ArgType	argType()	Arguments type of the function.
static LiteralDTO.Builder	builder()
Type	dataType()
String	toString()
String	value()

Methods inherited from class java.lang.Object

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

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

references

Methods inherited from interface org.apache.gravitino.dto.rel.expressions.FunctionArg

validate

Methods inherited from interface org.apache.gravitino.rel.expressions.literals.Literal

children

Field Details

NULL

public static final LiteralDTO NULL

An instance of LiteralDTO with a value of "NULL" and a data type of Types.NullType.get().

Method Details

value

public String value()

Specified by:

value in interface Literal<String>

Returns:

The value of the literal.

dataType

public Type dataType()

Specified by:

dataType in interface Literal<String>

Returns:

The data type of the literal.

argType

public FunctionArg.ArgType argType()

Description copied from interface: FunctionArg

Arguments type of the function.

Specified by:

argType in interface FunctionArg

Returns:

The type of the argument.

toString

public String toString()

Overrides:

toString in class Object

builder

public static LiteralDTO.Builder builder()

Returns:

the builder for creating a new instance of LiteralDTO.