agrueneberg / S3DB-Connectivity

S3DB wrapper for browsers

S3DB Connectivity

S3DB Connectivity is a browser module for interacting with S3DB, the Simple and Sloppy Semantic Database.

Features

• Login
• S3QL queries
• Regular and cached SPARQL queries
• Custom error handler
• Debug mode
• RequireJS support

Usage

S3DB Connectivity depends on jQuery.

Public project (no login required)

<!-- S3DB Connectivity depends on jQuery. -->
<script src="jquery.js"></script>
<script src="s3db-connectivity.js"></script>
<script>

    (function () {
        "use strict";

        var deployment;

        deployment = "YOUR_DEPLOYMENT";

     // First step: set S3DB deployment.
        s3dbc.setDeployment(deployment);

     // Second step: retrieve data.
        s3dbc.selectItemsByCollection("YOUR_COLLECTION_ID", function (err, items) {
            if (err !== null) {
                console.error("Retrieving items failed.", err);
            } else {
                console.log("Retrieving items succeeded.", items);
            }
        });

    }());

</script>

Private project (login required)

<!-- S3DB Connectivity depends on jQuery. -->
<script src="jquery.js"></script>
<script src="s3db-connectivity.js"></script>
<script>

    (function () {

        var deployment, username, password;

        deployment = "YOUR_DEPLOYMENT";
        username = "YOUR_USERNAME";
        password = "YOUR_PASSWORD";

     // First step: set S3DB deployment.
        s3dbc.setDeployment(deployment);

     // Second step: login.
        s3dbc.login(username, password, function (err, key) {
            if (err !== null) {
                console.error("Login failed.", err);
            } else {
                console.log("Login succeeded.");

             // Third step: set key.
                s3dbc.setKey(key);

             // Fourth step: retrieve data.
                s3dbc.selectItemsByCollection("YOUR_COLLECTION_ID", function (err, items) {
                    if (err !== null) {
                        console.error("Retrieving items failed.", err);
                    } else {
                        console.log("Retrieving items succeeded.", items);
                    }
                });

            }
        });

    }());

</script>

Methods

The first argument of a callback function is reserved for an error object, a useful convention to allow error catching in asynchronous programming. If an error object is null no error occurred.

Init

• setDeployment(string deployment)
• setKey(string key)
• setDebug(boolean debug) Enable or disable debug mode (default: false)

Login & Logout

• login(string username, string password, (err, string key) callback)
• logout()

Items

• selectItem(string itemId, (err, array results) callback)
• selectItemsByCollection(string collectionId, (err, array results) callback)
• insertItem(string collectionId, string notes, (err, array results) callback)
• updateItem(string itemId, string notes, (err, array results) callback)
• deleteItem(string itemId, (err, array results) callback)

Statements

• selectStatementsByItem(string itemId, (err, array results) callback)
• selectStatementsByRuleAndItem(string ruleId, string itemId, (err, array results) callback)
• selectStatementsByRuleAndValue(string ruleId, string value, (err, array results) callback)
• selectStatementsByRuleAndItemAndValue(string ruleId, string itemId, string value, (err, array results) callback)
• insertStatement(string itemId, string ruleId, string value, (err, array results) callback)
• updateStatement(string statementId, string value, (err, array results) callback)
• deleteStatement(string statementId, (err, array results) callback)

Raw S3QL

• s3qlQuery(string query, (err, array results) callback)

SPARQL

• sparqlQuery(string query, (err, array results) callback)
• cachedSparqlQuery(string query, (err, array results) callback)