org.javalite.conversion

Enum BlankToNullConverter

java.lang.Object

java.lang.Enum<BlankToNullConverter>

org.javalite.conversion.BlankToNullConverter

All Implemented Interfaces:

Serializable, Comparable<BlankToNullConverter>, Converter<String,Object>

public enum BlankToNullConverter
extends Enum<BlankToNullConverter>
implements Converter<String,Object>

Converts instances of String that are empty or contain only whitespaces to null.

Author:

Eric Nielsen

Enum Constant Summary

Enum Constants

Enum Constant and Description
INSTANCE

Method Summary

Modifier and Type	Method and Description
boolean	canConvert(Class sourceClass, Class destinationClass) Returns true if this converter can convert instances of sourceClass to destinationClass.
Object	convert(String source) Converts instance of S to T.
static BlankToNullConverter	instance()
static BlankToNullConverter	valueOf(String name) Returns the enum constant of this type with the specified name.
static BlankToNullConverter[]	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

INSTANCE

public static final BlankToNullConverter INSTANCE

Method Detail

values

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

Returns:

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

valueOf

public static BlankToNullConverter 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

instance

public static BlankToNullConverter instance()

canConvert

public boolean canConvert(Class sourceClass,
                          Class destinationClass)

Description copied from interface: Converter

Returns true if this converter can convert instances of sourceClass to destinationClass.

Specified by:

canConvert in interface Converter<String,Object>

Parameters:

sourceClass - source Class

destinationClass - destination Class

Returns:

true if sourceClass is String

convert

public Object convert(String source)

Description copied from interface: Converter

Converts instance of S to T.

Specified by:

convert in interface Converter<String,Object>

Parameters:

source - instance of String

Returns:

null if source is empty or contains only whitespaces, source otherwise