com.speedment.runtime.compute.expression.predicate

Enum NullPredicateType

java.lang.Object

java.lang.Enum<NullPredicateType>

com.speedment.runtime.compute.expression.predicate.NullPredicateType

All Implemented Interfaces:

Serializable, Comparable<NullPredicateType>

public enum NullPredicateType
extends Enum<NullPredicateType>

Special types of predicates that can easily be recognized and potentially short-circuited.

Since:

3.1.2

Author:

Emil Forslund

Enum Constant Summary

Enum Constants

Enum Constant and Description
IS_NOT_NULL Represents a simply a -> a != null predicate.
IS_NULL Represents a simply a -> a == null predicate.
OTHER Represents any kind of predicate, including IS_NULL or IS_NOT_NULL.

Method Summary

Modifier and Type	Method and Description
static NullPredicateType	valueOf(String name) Returns the enum constant of this type with the specified name.
static NullPredicateType[]	values() Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

IS_NULL

public static final NullPredicateType IS_NULL

Represents a simply a -> a == null predicate.

IS_NOT_NULL

public static final NullPredicateType IS_NOT_NULL

Represents a simply a -> a != null predicate.

OTHER

public static final NullPredicateType OTHER

Represents any kind of predicate, including IS_NULL or IS_NOT_NULL.

Method Detail

values

public static NullPredicateType[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (NullPredicateType c : NullPredicateType.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static NullPredicateType valueOf(String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum type has no constant with the specified name

NullPointerException - if the argument is null