Adobe FLEX 2 - CREATING AND EXTENDING COMPONENTS Manual page 156

"Basic component structure" on page 156
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"Implementing the constructor" on page 157
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"Implementing the createChildren() method" on page 157
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"Implementing the commitProperties() method" on page 158
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"Implementing the measure() method" on page 162
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"Implementing the layoutChrome() method" on page 166
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"Implementing the updateDisplayList() method" on page 166
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Basic component structure
The following example shows the basic structure of a Flex component:
package myComponents
{
public class MyComponent extends UIComponent
{
....
}
}
You must define your ActionScript custom components within a package. The package
reflects the directory location of your component within the directory structure of your
application.
The class definition of your component must be prefixed by the
contains a class definition can have one, and only one, public class definition, although it can
have additional private class definitions.
156 Creating Advanced Visual Components in ActionScript
keyword. A file that
public