Package cz.martlin.xspf.util

Interface XMLDocumentUtilityHelper.NullableValueToTextMapper<T>

Type Parameters:

T -

Enclosing class:

XMLDocumentUtilityHelper

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

@FunctionalInterface
public static interface XMLDocumentUtilityHelper.NullableValueToTextMapper<T>

An mapping of the particular java object (or null) to text to fill into the XML file. To convert a string, you can use STRING_TO_TEXT mapping.

Author:

martin

Field Summary

Fields

Modifier and Type	Field	Description
static XMLDocumentUtilityHelper.NullableValueToTextMapper<String>	STRING_TO_TEXT	An identity (i.e. empty) mapping.

Method Summary

Modifier and Type	Method	Description
static <T> XMLDocumentUtilityHelper.NullableValueToTextMapper<T>	checked(XMLDocumentUtilityHelper.NonNullValueToTextMapper<T> nonNullMapper)	Encapsulates the given XMLDocumentUtilityHelper.NonNullValueToTextMapper to be XMLDocumentUtilityHelper.NullableValueToTextMapper.
String	valueOrNullToText(T value)	Converts the given (possibly null) java object to the xml text.

Field Detail

STRING_TO_TEXT

static final XMLDocumentUtilityHelper.NullableValueToTextMapper<String> STRING_TO_TEXT

An identity (i.e. empty) mapping.

Method Detail

valueOrNullToText

String valueOrNullToText(T value)
                  throws Exception

Converts the given (possibly null) java object to the xml text.

Parameters:

value -

Returns:

Throws:

Exception

checked

static <T> XMLDocumentUtilityHelper.NullableValueToTextMapper<T> checked(XMLDocumentUtilityHelper.NonNullValueToTextMapper<T> nonNullMapper)

Encapsulates the given XMLDocumentUtilityHelper.NonNullValueToTextMapper to be XMLDocumentUtilityHelper.NullableValueToTextMapper.

Type Parameters:

T -

Parameters:

nonNullMapper -

Returns: