Package org.apache.juneau.commons.svl.functions

Class ConditionalFunctions.Switch

java.lang.Object

org.apache.juneau.commons.svl.TypedFunction

org.apache.juneau.commons.svl.functions.ConditionalFunctions.Switch

All Implemented Interfaces:

VarFunction

Enclosing class:

ConditionalFunctions

public static class ConditionalFunctions.Switch
extends TypedFunction

#{switch(value, case1, val1, case2, val2, ..., default)} — replacement for the legacy $SW{...}.

Compares value against each caseN glob pattern and returns the matching valN for the first match. caseN patterns may contain * (any sequence of characters) and ? (any single character) wildcards — same semantics as the legacy SwitchVar. Plain literals (no wildcards) match by full-string equality.

The last unmatched arg is the default; if the arg count is even (no trailing default), an empty string is returned for unmatched values.

Examples:

• #{switch(${os}, *win*, Windows, *nix*, Linux, *)} — glob-routes by substring.
• #{switch(${env}, prod, A, dev, B, default)} — exact equality, three branches.

Constructor Summary

Constructors

Constructor	Description
Switch()

Method Summary

Modifier and Type	Method	Description
String	invoke(String[] args)
String	name()	The function's invocation name as it appears between #{} and the opening parenthesis in the template.

Methods inherited from class org.apache.juneau.commons.svl.TypedFunction

invoke, maxArity, minArity

Methods inherited from class java.lang.Object

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

Constructor Details

Switch

public Switch()

Method Details

name

public String name()

Description copied from interface: VarFunction

The function's invocation name as it appears between #{} and the opening parenthesis in the template. Must consist of ASCII letters, digits, and underscores; must begin with a letter.

Returns:

The invocation name. Never null or empty.

invoke

public String invoke(String[] args)