PropertyPlaceholderHelper.PlaceholderResolver (Spring Framework 5.2.12.RELEASE API)

Enclosing class:
PropertyPlaceholderHelper
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 PropertyPlaceholderHelper.PlaceholderResolver
```
Strategy interface used to resolve replacement values for placeholders contained in Strings.

- Method Summary
  All Methods Instance Methods Abstract Methods
  Modifier and Type Method Description
  String resolvePlaceholder(String placeholderName)
  Resolve the supplied placeholder name to the replacement value.

- Method Detail
  - resolvePlaceholder
```
@Nullable
String resolvePlaceholder(String placeholderName)
```
    Resolve the supplied placeholder name to the replacement value.
    Parameters:
    placeholderName - the name of the placeholder to resolve
    Returns:
    the replacement value, or null if no replacement is to be made