VariableResolver (Jenkins core 2.452.4 API)

All Known Implementing Classes:

VariableResolver.ByMap, VariableResolver.Union
```
public interface VariableResolver<V>
```
Resolves variables to its value, while encapsulating how that resolution happens.

Author:

Kohsuke Kawaguchi

Nested Class Summary

Nested Classes
Modifier and Type	Interface	Description
`static class`	`VariableResolver.ByMap<V>`	`VariableResolver` backed by a `Map`.
`static class`	`VariableResolver.Union<V>`	Union of multiple `VariableResolver`.

Field Summary

Fields
Modifier and Type Field Description

static VariableResolver NONE
Empty resolver that always returns null.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type Method Description

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

- Field Detail
  - NONE
```
static final VariableResolver NONE
```
    Empty resolver that always returns null.
- Method Detail
  - resolve
```
V resolve(String name)
```
    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.
    
    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.