JavaBean Design Patterns - I

• Beans of name B:

  • Any class or superclass
  • Needs a no-argument constructor
  • JAR file manifest entry specifies Java-Bean: True

• Property P of type T is gotten by public T getP()

  • or public boolean isP() if P boolean
  • and set by public void setP(T value)
  • add index to argument for arrays

• Bound and Constrained Properties are each supported by a single list of event listeners and B must support methods

  • addPropertyChangeListener(PropertyChangeListener l) Bound
  • removePropertyChangeListener(PropertyChangeListener l)
  • addvetoableChangeListener(VetoableChangeListener l) Constrained
  • removevetoableChangeListener(VetoableChangeListener l)

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