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## org.apache.commons.digester3.substitution
Class CompoundSubstitutor

    java.lang.Object
      org.apache.commons.digester3.Substitutor
          org.apache.commons.digester3.substitution.CompoundSubstitutor

    public class CompoundSubstitutor

extends Substitutor

This Substitutor chains two Substitutors `a` and `b`. All values to substitute are first handled by `a` and passed to `b` afterwards.

Constructor Summary
`CompoundSubstitutor(Substitutor a, Substitutor b)` Creates a new CompoundSubstitutor instance.

Method Summary
`Attributes` | `substitute(Attributes attributes)` Substitutes the attributes (before they are passed to the `Rule` implementations's).
`String` | `substitute(String bodyText)` Substitutes for the body text.

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail

### CompoundSubstitutor

    public CompoundSubstitutor(Substitutor a,
                               Substitutor b)

  Creates a new CompoundSubstitutor instance. All values overgiven to `substitute()` are first handled by `a` and passed to `b` afterwards. Both Substitutor have to be not null.

  Parameters:
    `a` - Substitutor a
    `b` - Substitutor b

Method Detail

### substitute

    public Attributes substitute(Attributes attributes)

  Substitutes the attributes (before they are passed to the `Rule` implementations's).

  `Digester` will only call this method a second time once the original `Attributes` instance can be safely reused. The implementation is therefore free to reuse the same `Attributes` instance for all calls.

  Specified by:
    `substitute` in class `Substitutor`
  Parameters:
    `attributes` - the `Attributes` passed into `Digester` by the SAX parser, not null (but may be empty)
  Returns:
    `Attributes` to be passed to the `Rule` implementations. This method may pass back the Attributes passed in. Not null but possibly empty.

### substitute

    public String substitute(String bodyText)

  Substitutes for the body text. This method may substitute values into the body text of the elements that Digester parses.

  Specified by:
    `substitute` in class `Substitutor`
  Parameters:
    `bodyText` - the body text (as passed to `Digester`)
  Returns:
    the body text to be passed to the `Rule` implementations

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