org.springframework.util

## Interface PropertyPlaceholderHelper.PlaceholderResolver

- 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 and 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