org.osgl.util

Enum PropertyGetter.NullValuePolicy

java.lang.Object

java.lang.Enum<PropertyGetter.NullValuePolicy>

org.osgl.util.PropertyGetter.NullValuePolicy

All Implemented Interfaces:

Serializable, Comparable<PropertyGetter.NullValuePolicy>

Enclosing interface:

PropertyGetter

public static enum PropertyGetter.NullValuePolicy
extends Enum<PropertyGetter.NullValuePolicy>

Enum Constant Summary

Enum Constants

Enum Constant and Description
CREATE_NEW Create new instance when null value encountered.
NPE Throws NullPointerException when null value encountered
RETURN_NULL Return null when null value encountered.

Method Summary

Modifier and Type	Method and Description
static PropertyGetter.NullValuePolicy	valueOf(String name) Returns the enum constant of this type with the specified name.
static PropertyGetter.NullValuePolicy[]	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

RETURN_NULL

public static final PropertyGetter.NullValuePolicy RETURN_NULL

Return null when null value encountered. This is the default policy

NPE

public static final PropertyGetter.NullValuePolicy NPE

Throws NullPointerException when null value encountered

CREATE_NEW

public static final PropertyGetter.NullValuePolicy CREATE_NEW

Create new instance when null value encountered. This is useful when use PropertyGetter along with PropertySetter to set a value on a property path. E.g. set "a string" to "bar.0.zee" on foo entity

Method Detail

values

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

Returns:

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

valueOf

public static PropertyGetter.NullValuePolicy 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