Package hudson.util

Class VariableResolver.Union<V>

java.lang.Object

hudson.util.VariableResolver.Union<V>

All Implemented Interfaces:

VariableResolver<V>

Enclosing interface:

VariableResolver<V>

public static final class VariableResolver.Union<V>
extends Object
implements VariableResolver<V>

Union of multiple VariableResolver.

Nested Class Summary

Nested classes/interfaces inherited from interface hudson.util.VariableResolver

VariableResolver.ByMap<V>, VariableResolver.Union<V>

Field Summary

Fields inherited from interface hudson.util.VariableResolver

NONE

Constructor Summary

Constructors

Constructor	Description
Union(VariableResolver<? extends V>... resolvers)
Union(Collection<? extends VariableResolver<? extends V>> resolvers)

Method Summary

Modifier and Type	Method	Description
V	resolve(String name)	Receives a variable name and obtains the value associated with the name.

Methods inherited from class java.lang.Object

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

Constructor Details

Union

public Union(VariableResolver<? extends V>... resolvers)

Union

public Union(Collection<? extends VariableResolver<? extends V>> resolvers)

Method Details

resolve

public V resolve(String name)

Description copied from interface: VariableResolver

Receives a variable name and obtains the value associated with the name.

This can be implemented simply on top of a Map (see VariableResolver.ByMap), or this can be used like an expression evaluator.

Specified by:

resolve in interface VariableResolver<V>

Parameters:

name - Name of the variable to be resolved. Never null, never empty. The name shouldn't include the syntactic marker of an expression. IOW, it should be "foo" but not "${foo}". A part of the goal of this design is to abstract away the expression marker syntax.

Returns:

Object referenced by the name. Null if not found.