The Datatable autocomplete project provides a Trie datastructure that allows AJAX searches on large datasets fast. It is not memory efficient but it is fast especially to know how many results a given prefix matches. Provides a Datatable component when tied to a textfield will show the matched objects in a table format.
Homepage POM file JAR file Javadoc'org.wicketstuff:datatable-autocomplete:1.4.8'