Package org.opencastproject.util.data.functions

Class Strings

java.lang.Object

org.opencastproject.util.data.functions.Strings

public final class Strings
extends Object

Functions for strings.

Method Summary

Modifier and Type	Method	Description
static Optional<String>	asString(Object a)	Return a.toString() wrapped in a some if a !
static String	asStringNull(Object a)	Return a.toString() or <null> if argument is null.
static <A> String	format(Format f, A a)
static String[]	split(Pattern splitter, String s)	Create a split function from a regex pattern.
static Optional<Double>	toDouble(String s)	Convert a string into a long if possible.
static Optional<Integer>	toInt(String s)	Convert a string into an integer if possible.
static List<String>	trimToNil(String a)
static Optional<String>	trimToNone(String a)	Trim a string and return either some or none if it's empty.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Details

trimToNone

public static Optional<String> trimToNone(String a)

Trim a string and return either some or none if it's empty. The string may be null.

asString

public static Optional<String> asString(Object a)

Return a.toString() wrapped in a some if a != null, none otherwise.

asStringNull

public static String asStringNull(Object a)

Return a.toString() or <null> if argument is null.

toDouble

public static Optional<Double> toDouble(String s)

Convert a string into a long if possible.

toInt

public static Optional<Integer> toInt(String s)

Convert a string into an integer if possible.

format

public static <A> String format(Format f,
 A a)

trimToNil

public static List<String> trimToNil(String a)

split

public static String[] split(Pattern splitter,
 String s)

Create a split function from a regex pattern.