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## org.springframework.webflow.core.collection
Interface AttributeMapBindingListener

    public interface AttributeMapBindingListener

Causes an object to be notified when it is bound or unbound from an `AttributeMap`.

Note that this is an optional feature and not all `AttributeMap` implementations support it.

Author:
  Ben Hale
See Also:
  `AttributeMap`

Method Summary
`void` | `valueBound(AttributeMapBindingEvent event)` Called when the implementing instance is bound into an `AttributeMap`.
`void` | `valueUnbound(AttributeMapBindingEvent event)` Called when the implementing instance is unbound from an `AttributeMap`.

Method Detail

### valueBound

    void valueBound(AttributeMapBindingEvent event)

  Called when the implementing instance is bound into an `AttributeMap`.

  Parameters:
    `event` - information about the binding event

### valueUnbound

    void valueUnbound(AttributeMapBindingEvent event)

  Called when the implementing instance is unbound from an `AttributeMap`.

  Parameters:
    `event` - information about the unbinding event

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