I would like to use Infinispan following a tree like structure for the cache. For example, using the following data structure for ticker symbols:
Exchange (NY stock exchange, AMEX...)
Date
Ticker
I am not sure how to implement this as the only examples that I have found are pretty basic such as:
cache.put("key", "value");
I tried to look up the internet and stackoverflow without any luck... I know that I could flatten the structure in the example above but for illustrative purposes, I would like to know how Infinispan works (and the tutorials don't cover it, which is why I must not be thinking about it correctly since Infinispan is pretty robust).
Any help would be greatly appreciated.
Thanks,
Julien
Did you check the tree module in Infinispan?
Related
I expected to find something about SelectionModel in the Angular CDK docs, but keep coming up short.
There are many API pages; for example, Angular Components docs for MatTable. Yes, the code for SelectionModel is on GitHub, but I would like to:
read the an overview" like the many such pages on **angular.io* while also
learning from examples like those on angular.io or from third-parties, and
reading the code.
What I seem to be missing is #1, but only for certain classes.
Some other non-component classes are documented at angular.io. MatTableDataSource can be found in right-hand column of the MatTable API documentation. Okay, that's not exactly obvious, but it is a useful location. I might have expected to find collections somewhere like CDK Collections page, but alas it is not there.
Is angular.io the official location for such stuff?
Have I missed a way to find API documentation for SelectionModel
class and maybe other classes in cdk\collection or am I really just reporting a website bug?
I THINK that this is another case of Google's lacklustre attitude towards documentation. Time and time again I come across situations where their docs are either incorrect, out-of-date or missing entirely. This is not specific to Angular, but to any of their products.
Yes, to the largest part the Angular docs are fantastic. The Material docs, however, often have holes like this and are inconsistent at times.
I don't think you're missing anything, Paul.
I know this is a year "late". I had the same question now and stumbled upon this unanswered reflection of my frustrations :-)
Here is document page
https://github.com/angular/components/blob/master/src/cdk/collections/collections.md
The collections package provides a set of utilities for managing collections.
SelectionModel
SelectionModel is a utility for powering selection of one or more options from a list. This model is used in components such as the selection list, table selections and chip lists.
I am interested to learn how does Vscode implement its auto-complete list (in term of data structure and algorithm around it). I looked into vscode repo but nothing jumped out right-away. Could someone point me to the right direction? Thank you in advance.
To be more specific
What data structure does it use to store tokens?
How does the lookup work given the data structure?
Update
Potentially found relevant codes:
completionModel.ts
filters.ts
I have found several questions that are similar but no solution worked as needed, or used internal functions. This is the most relevant one:
Getting data for d3 from ArangoDB using AQL (or arangojs)
I'm unable to understand how to return a single response with a tree structure of parent + children. Something that D3 can understand. Whatever I do, beyond the first iteration, everything is a mess. I have tried MERGE and MERGE_RECURSIVE but it just did not work as I thought of.
I'm clueless to how I can make it to work. I'm used to Neo4J and for some reason this one is just hard for me to understand.
Any help will do,
Thanks,
DD.
I found a simple solution. I'm just using AQL to get a flat list of results and their edges. After that, I just sort it as I need on my code
I have done GUI construction but not in Python. From other stack exchange questions and my own investigation. It looks like I want to use enaml and traits for the bulk of this work. Are there any links or references to help me get started.
This is a scientific application integrating matplotlib plots and text boxes and buttons (Very simple I think). I have gone through this example but don't understand it too well http://code.enthought.com/projects/traits/docs/html/tutorials/traits_ui_scientific_app.html
I have also gone through the Enthough Chaco examples and don't get very far. Has somebody built a program that I could run and look at their code? Or is their a repository of examples I am not aware of? I found the enaml examples but the example with matplotlib is basic and does not show me how to connect my algorithms to the plots. Thanks in advance!
Not a full answer, but for additional context:
1) Use https://github.com/nucleic/enaml, along with https://github.com/enthought/traits-enaml
2) Example:
https://github.com/nucleic/enaml/blob/master/examples/widgets/mpl_canvas.enaml
I am currently using Neo4j Python rest client and I would like to visualise the graph and be able to amend it, add new nodes relationships etc. Also I would like the changes in the neo4j database as well. Is that possible? Also can self-loops be visualised? I have read about D3.js and Neoclipse and Gephi in http://www.neo4j.org/develop/visualize but I am not sure which one to use.
Thanks in advance.
You can manipulate the graph in Neo4J using Cypher, in particular using a the REST API.
Any kind of tool that allows you to interface with Cypher is potentially able to do what you are asking: it is a matter to combine some Cypher queries with the GUI.
Said that, create the right visualization for what you are doing might be tricky and general approach might no satisfy your needs: while Neoclipse can let you manipulate nodes and links in Neo4J (for free) you might want to do in a particular way (for example restricting the choice of editing or the field/properties to be changed).
Linkurious offers a solution to do that as well, but it's a commercial license.
Other solutions such KeyLines, d3.js, sigmaJS let you personalize that experience: note that they will require to create the interface yourself, but the result will be much better in case of a specific product IMHO.
So value your time and requirements and go with the proper solution.
For more tools have a look at the Neo4J visualization page: http://www.neo4j.org/develop/visualize
About self loops:
that's a tricky bit and there is not a right way to do those - imagine a scenario with hunders of multi-selfloops.
Personally I would recommend to NOT draw them on the chart as link/edges, while representing them in some other ways: es. glyphs, notes, bubbles on the node...
I believe the only tool that allows this today is Neoclipse, but I don't think it's updated to use the Labels and Indexing features released in 2.0.
As such, your best bet will be using the Neo4j Browser to visualize and Cypher to mutate your graph. If you want richer functionality and want a fun project to hack on, it shouldn't be super hard to build a basic visualization for Neo that allows mutating the graph. I would have a look at sigma.js: http://linkurio.us/sigma-js-1-0-next-gen-graph-drawing-lib-web/