Database Reference
In-Depth Information
CHAPTER 4
Architecture
In this chapter we look in detail at how eXist is constructed and how it processes your
XML documents and executes your XQueries. This information should be consid‐
ered advanced, so if you are a beginner you may want to skip to another chapter.
However, for those wishing to master eXist, this information can be invaluable in
helping you understand how to use it efficiently.
eXist is a large software project that has evolved over the last 13+ years, and is written
predominantly in the Java programming language. Although extensions and add-ons
to eXist are often written in pure XQuery and/or XSLT, the main body of eXist is
written in Java.
Regardless of how you decide to deploy and use eXist, its architecture (see
Figure 4-1
)
remains largely the same, with various optional components depending on your use.
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