#!F-adobe-helvetica-medium-r-normal--18* #!N #!CSlateBlue #!N #!Rwritmod Writing a Simple Module #!N #!EC #!N #!N This chapter discusses the basics of writing a simple module for Data Explorer. Subsequent chapters cover some typical types of modules you might want to write. Although Data Explorer modules support a broad range of data and connections types, your module need support only those types it can be expected to encounter. Moreover, it is not necessary to manipulate all the components of a Data Explorer Field. The programming examples in later chapters illustrate modules that manipulate particular components (e.g., "data"). #!N #!N Before writing a module, you should have a general understanding of the Data Explorer data model and be familiar with the way data is carried in Fields, Groups, and components (see #!Ldatam,dxall1022 h Data Explorer Data Model #!EL ). For a detailed treatment of the data model, see #!Ldatmod,dxall197 h Understanding the Data Model #!EL in IBM Visualization Data Explorer User's Guide. In this manual, #!Ldatachp,dxall1061 h Working with Data Model Objects #!EL , summarizes the routines that implement the model. #!N #!N Two other important topics are briefly reviewed in subsequent sections: #!N #!I0 #!N #!F-adobe-times-medium-r-normal--18* #!N #!N #!I30 #!N 1. managing the memory allocated to and used by visual programs and their constituent modules (see #!Lmemng,dxall1023 h Memory Management #!EL ) and #!N #!I30 #!N 2. the Data Explorer execution model (see #!Lexecm,dxall1026 h Data Explorer Execution Model #!EL ). #!N #!I0 #!N #!EF #!N #!N #!N #!N #!F-adobe-times-medium-i-normal--18* Next Topic #!EF #!N #!N #!Lall989,dxall990 h Getting Started Writing a Module #!EL #!N #!F-adobe-times-medium-i-normal--18* #!N
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