Cache API: This is Infinispan's primary API to access the grid, it's located in the org.infinispan package.

TreeCache API: Infinispan provides the org.infinispan.tree.TreeCache interface to provide compatibility with JBoss Cache. It can be used for caching data organized as tree-like structures, like a filesystem tree.

To create an instance of TreeCache, you will need a factory class called org.infinispan.tree.TreeCacheFactory. Define the tree structure using the org.infinispan.tree.Node interface, by defining a root node and a collection of node objects that contain the key and value data.

You can find a simple example of the TreeCache API using the Infinispan configuration API here:

EmbeddedCacheManager manager = new DefaultCacheManager("sample.xml");
TreeCache<String, String> tc = new TreeCacheFactory().createTreeCache(manager.<String, String>getCache("TreeCache"));
tc.put("/books/packt/infinispan/guide...