org.apache.openjpa.persistence.query
Enum UnaryConditionalOperator

java.lang.Object
  java.lang.Enum<UnaryConditionalOperator>
      org.apache.openjpa.persistence.query.UnaryConditionalOperator

All Implemented Interfaces:

Serializable, Comparable<UnaryConditionalOperator>

public enum UnaryConditionalOperator
extends Enum<UnaryConditionalOperator>

Enumeration of operator that operates on a single expression to generate a predicate.

Author:

Pinaki Poddar

See Also:

UnaryOperatorExpression

Enum Constant Summary

EXISTS

EXISTS_NOT

ISEMPTY

ISEMPTY_NOT

ISNULL

ISNULL_NOT

SOME

Method Summary

String	toString()
static UnaryConditionalOperator	valueOf(String name) Returns the enum constant of this type with the specified name.
static UnaryConditionalOperator[]	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, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

EXISTS

public static final UnaryConditionalOperator EXISTS

EXISTS_NOT

public static final UnaryConditionalOperator EXISTS_NOT

ISEMPTY

public static final UnaryConditionalOperator ISEMPTY

ISEMPTY_NOT

public static final UnaryConditionalOperator ISEMPTY_NOT

ISNULL

public static final UnaryConditionalOperator ISNULL

ISNULL_NOT

public static final UnaryConditionalOperator ISNULL_NOT

SOME

public static final UnaryConditionalOperator SOME

Method Detail

values

public static UnaryConditionalOperator[] 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 (UnaryConditionalOperator c : UnaryConditionalOperator.values())
    System.out.println(c);

Returns:

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

valueOf

public static UnaryConditionalOperator 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

toString

public String toString()

Overrides:

toString in class Enum<UnaryConditionalOperator>