[Chapter 23] 23.10 java.beans.MethodDescriptor (JDK 1.1)

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| Chapter 23 The java.beans Package |

## 23.10 java.beans.MethodDescriptor (JDK 1.1)

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A `MethodDescriptor` object is a type of `FeatureDescriptor` that describes a method supported by a Java bean. The `BeanInfo` class for a Java bean optionally creates `MethodDescriptor` objects that describe the methods the bean exports. While a `BeanInfo` class creates and initializes `MethodDescriptor` objects, it is typically only application builders and similar tools that use these objects to obtain information about the methods supported by a bean.

To create a `MethodDescriptor`, you must specify the `java.lang.reflect.Method` object for the method, and optionally specify an array of `ParameterDescriptor` objects that describe the parameters of the method. Once you have created a `MethodDescriptor` object, you can use `FeatureDescriptor` methods to provide additional information about each method.

    public class MethodDescriptor extends FeatureDescriptor {
        // Public Constructors
                public MethodDescriptor(Method method);
                public MethodDescriptor(Method method, ParameterDescriptor[] parameterDescriptors);
        // Public Instance Methods
                public Method getMethod();
                public ParameterDescriptor[] getParameterDescriptors();
    }

### Hierarchy:

Object->FeatureDescriptor->MethodDescriptor

### Passed To:

EventSetDescriptor()

### Returned By:

BeanInfo.getMethodDescriptors(), EventSetDescriptor.getListenerMethodDescriptors(), SimpleBeanInfo.getMethodDescriptors()

java.beans.Introspector (JDK 1.1) |  | java.beans.ParameterDescriptor (JDK 1.1)