patricia-trie | Practical Algorithm to Retrieve Information Coded

 by   rkapsi Java Version: Current License: Apache-2.0

kandi X-RAY | patricia-trie Summary

kandi X-RAY | patricia-trie Summary

patricia-trie is a Java library. patricia-trie has no bugs, it has no vulnerabilities, it has build file available, it has a Permissive License and it has low support. You can download it from GitLab, GitHub.

This is a general purpose implementation of a PATRICIA Trie in Java. It implements the SortedMap interface and integrates well with the Java Collections Framework. You can use any kind of Objects for Keys as long as they can be accessed bit-wise. You can find examples in the wiki and there is a blog post with some additional information about the implementation. The PATRICIA Trie is also known under the names Radix and Crit Bit Tree. Download: Binaries can be found on the project's Google Code Page. NOTE: This implementation has been contributed to Apache Commons Collections and Google Collections Library.

            kandi-support Support

              patricia-trie has a low active ecosystem.
              It has 173 star(s) with 36 fork(s). There are 14 watchers for this library.
              It had no major release in the last 6 months.
              There are 5 open issues and 6 have been closed. On average issues are closed in 12 days. There are 2 open pull requests and 0 closed requests.
              It has a neutral sentiment in the developer community.
              The latest version of patricia-trie is current.

            kandi-Quality Quality

              patricia-trie has no bugs reported.

            kandi-Security Security

              patricia-trie has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

            kandi-License License

              patricia-trie is licensed under the Apache-2.0 License. This license is Permissive.
              Permissive licenses have the least restrictions, and you can use them in most projects.

            kandi-Reuse Reuse

              patricia-trie releases are not available. You will need to build from source code and install.
              Build file is available. You can build the component from source.

            Top functions reviewed by kandi - BETA

            kandi has reviewed patricia-trie and discovered the below as its top functions. This is intended to give you an instant insight into patricia-trie implemented functionality, and help decide if they suit your requirements.
            • Returns the lowest entry higher than the given key
            • Adds an entry to the tree
            • Gets the nearest entry for the given key
            • Returns the bit index for the given key
            • Returns the char at the given index
            • Returns the bit index of this key
            • Returns the char at the specified index
            • Finds the subtree that contains the prefix
            • Returns the index of the first bit found in the key
            • Returns the lowest key - value associated with the given key or null if no such key exists
            • Returns the node before the given node
            • Finds the bit in key
            • Returns a string representation of the trie
            • Returns true if the key exists in the trie
            • Finds the bit index for the given key
            • Returns the bit index of the key in the key
            • Returns the bit index of the given key
            • Sets the value associated with the key
            • Clears the map
            • Removes a value from the trie
            • Traverses the trie
            • Returns the entry corresponding to the least greater than or equal to the given key
            • Gets the key - value associated with the given key
            • Returns true if the bit at the specified index is set
            Get all kandi verified functions for this library.

            patricia-trie Key Features

            No Key Features are available at this moment for patricia-trie.

            patricia-trie Examples and Code Snippets

            No Code Snippets are available at this moment for patricia-trie.

            Community Discussions


            Efficient way to determine if an element has already appeared in a stream
            Asked 2018-Jul-18 at 13:41
            The question

            Is there any efficient way (with particular attention to memory), either deterministic or probabilistic with arbitrary error, to determine if i-th element has already appeared or not in a stream of strings (such as the one modelled below)?

            Stream model

            The stream is modelled by the following generator of strings. In this model, the last M=10000 values are the ones that appear twice. Obviously in the real application it is not known when a duplicate shall show itself.



            Answered 2018-Jul-18 at 13:41

            Yes, it's called Bloom Filters:

            Bloom filters are space-efficient probablistic data structures used to test whether an element is a member of a set.

            I used pybloom-mirror package to modify your code and set the bloom filter to capacity 20000 and error rate 0.01 (according BloomFilter calculator the size of filter is around ~23.4kB). But it can give you false positives.



            Jetty: lang.NoSuchMethodError: org.eclipse.jetty.util.thread.ExecutionStrategy.execute()V
            Asked 2018-Feb-28 at 19:39

            I upgraded dropwizard to the latest 1.2.4 from 1.0.2. Now I am seeing the below exception in my logs



            Answered 2018-Feb-28 at 19:39

            The only way that's possible is if you have mismatched versions of jetty-io and jetty-util classes.

            Run this code (in your project) to figure out where the classes are (it will report all locations, even if they are in multiple locations):


            Community Discussions, Code Snippets contain sources that include Stack Exchange Network


            No vulnerabilities reported

            Install patricia-trie

            You can download it from GitLab, GitHub.
            You can use patricia-trie like any standard Java library. Please include the the jar files in your classpath. You can also use any IDE and you can run and debug the patricia-trie component as you would do with any other Java program. Best practice is to use a build tool that supports dependency management such as Maven or Gradle. For Maven installation, please refer For Gradle installation, please refer .


            For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .
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