## Uses of Class
java.beans.Expression

- Packages that use Expression
  Package | Description
  --- | ---
  java.beans | Contains classes related to developing beans -- components based on the JavaBeans™ architecture.

- - ### Uses of Expression in java.beans

    Methods in java.beans that return Expression
    Modifier and Type | Method and Description
    --- | ---
    `protected abstract Expression` | PersistenceDelegate.`instantiate(Object oldInstance, Encoder out)` Returns an expression whose value is `oldInstance`.
    `protected Expression` | DefaultPersistenceDelegate.`instantiate(Object oldInstance, Encoder out)` This default implementation of the `instantiate` method returns an expression containing the predefined method name "new" which denotes a call to a constructor with the arguments as specified in the `DefaultPersistenceDelegate`'s constructor.

    Methods in java.beans with parameters of type Expression
    Modifier and Type | Method and Description
    --- | ---
    `void` | XMLEncoder.`writeExpression(Expression oldExp)` Records the Expression so that the Encoder will produce the actual output when the stream is flushed.
    `void` | Encoder.`writeExpression(Expression oldExp)` The implementation first checks to see if an expression with this value has already been written.

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