Data Buffer Access
In addition to the built-in functions you use to access the component buffer, classes of objects are available that provide access to structured data buffers using the PeopleCode object syntax.
The data buffers accessed by these classes are typically the component buffers that are loaded when you open a component. However, these classes may also be used to access data from general data buffers, loaded by an Application Engine program, a component interface, and so on.
The methods and properties of these classes provide functionality that is similar to what has been available using built-in functions. However, they also provide improved consistency, flexibility, and new functionality.