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+++ b/asterix-examples/src/main/resources/asterix-sdk-stable.js
@@ -0,0 +1,1045 @@
+/**
+* Asterix SDK - Beta Version
+* @author Eugenia Gabrielov <genia.likes.science@gmail.com>
+* 
+* This is a Javascript helper file for generating AQL queries for AsterixDB (https://code.google.com/p/asterixdb/) 
+*/
+
+/**
+* AsterixDBConnection
+* 
+* This is a handler for connections to a local AsterixDB REST API Endpoint. 
+* This initialization takes as input a configuraiton object, and initializes
+* same basic functionality. 
+*/
+function AsterixDBConnection(configuration) {
+    // Initialize AsterixDBConnection properties
+    this._properties = {};
+    
+    // Set dataverse as null for now, this needs to be set by the user.
+    this._properties["dataverse"] = "";
+    
+    // By default, we will wait for calls to the REST API to complete. The query method
+    // sends a different setting when executed asynchronously. Calls that do not specify a mode
+    // will be executed synchronously.
+    this._properties["mode"] = "synchronous";
+    
+    // These are the default error behaviors for Asterix and ajax errors, respectively. 
+    // They can be overridden by calling initializing your AsterixDBConnection like so:
+    // adb = new AsterixDBConnection({
+    //                                  "error" : function(data) {
+    //                                              // override here...
+    //                                  });
+    // and similarly for ajax_error, just pass in the configuration as a json object.
+    this._properties["error"] = function(data) {
+        alert("Asterix REST API Error:\n" + data["error-code"][0] + "\n" + data["error-code"][1]);
+    };
+    
+    this._properties["ajax_error"] = function(message) {
+        alert("[Ajax Error]\n" + message);
+    };
+
+    // This is the default path to the local Asterix REST API. Can be overwritten for remote configurations
+    // or for demo setup purposes (such as with a proxy handler with Python or PHP.
+    this._properties["endpoint_root"] = "http://localhost:19002/";
+    
+    // If we have passed in a configuration, we will update the internal properties
+    // using that configuration. You can do things such as include a new endpoint_root,
+    // a new error function, a new dataverse, etc. You can even store extra info.
+    //
+    // NOTE Long-term, this should have more strict limits.
+    var configuration = configuration || {};
+
+    for (var key in configuration) {
+        this._properties[key] = configuration[key];
+    }
+    
+    return this;
+}
+
+
+/**
+* dataverse
+*
+* Sets dataverse for execution for the AsterixDBConnection.
+*/
+AsterixDBConnection.prototype.dataverse = function(dataverseName) {
+    this._properties["dataverse"] = dataverseName;
+    
+    return this;
+};
+
+
+/**
+* query (http://asterix.ics.uci.edu/documentation/api.html#QueryApi)
+* 
+* @param statements, statements of an AQL query
+* @param successFn, a function to execute if this query is run successfully
+* @param mode, a string either "synchronous" or "asynchronous", depending on preferred
+*               execution mode. 
+*/
+AsterixDBConnection.prototype.query = function(statements, successFn, mode) {
+ 
+    if ( typeof statements === 'string') {
+        statements = [ statements ];
+    }
+    
+    var m = typeof mode ? mode : "synchronous";
+    
+    // DEBUG
+    //alert(statements.join("\n"));
+     
+    var query = "use dataverse " + this._properties["dataverse"] + ";\n" + statements.join("\n");
+    
+    this._api(
+        {
+            "query" : query,
+            "mode"  : m
+        },
+        successFn, 
+        "query"
+    );
+
+    return this;
+};
+
+/**
+* query_status (http://asterix.ics.uci.edu/documentation/api.html#QueryStatusApi)
+* 
+* @param handle, a json object of the form {"handle" : handleObject}, where
+*                   the handle object is an opaque handle previously returned
+*                   from an asynchronous call.
+* @param successFn, a function to call on successful execution of this API call.
+*/
+AsterixDBConnection.prototype.query_status = function(handle, successFn) {
+    this._api(
+        handle,
+        successFn,
+        "query/status"
+    );
+
+    return this;
+};
+
+
+/**
+* query_result (http://asterix.ics.uci.edu/documentation/api.html#AsynchronousResultApi)
+* 
+* handle, a json object of the form {"handle" : handleObject}, where
+*           the handle object is an opaque handle previously returned
+*           from an asynchronous call.
+* successFn, a function to call on successful execution of this API call.
+*/
+AsterixDBConnection.prototype.query_result = function(handle, successFn) {
+    this._api(
+        handle,
+        successFn,
+        "query/result"
+    ); 
+
+    return this;
+};
+
+
+/**
+* ddl (http://asterix.ics.uci.edu/documentation/api.html#DdlApi)
+* 
+* @param statements, statements to run through ddl api
+* @param successFn, a function to execute if they are successful
+*/
+AsterixDBConnection.prototype.ddl = function(statements, successFn) {
+    if ( typeof statements === 'string') {
+        statements = [ statements ];
+    }
+    
+    this._api(
+        {
+            "ddl" :  "use dataverse " + this._properties["dataverse"] + ";\n" + statements.join("\n")
+        },
+        successFn,
+        "ddl"
+    );
+}
+
+
+/**
+* update (http://asterix.ics.uci.edu/documentation/api.html#UpdateApi)
+*
+* @param statements, statement(s) for an update API call
+* @param successFn, a function to run if this is executed successfully.
+* 
+* This is an AsterixDBConnection handler for the update API. It passes statements provided
+* to the internal API endpoint handler.
+*/
+AsterixDBConnection.prototype.update = function(statements, successFn) {
+    if ( typeof statements === 'string') {
+        statements = [ statements ];
+    }
+    
+    // DEBUG
+    // alert(statements.join("\n"));
+    
+    this._api(
+        {
+            "statements" : "use dataverse " + this._properties["dataverse"] + ";\n" + statements.join("\n")
+        },
+        successFn,
+        "update"
+    );
+}
+
+
+/**
+* meta
+* @param statements, a string or a list of strings representing an Asterix query object
+* @param successFn, a function to execute if call succeeds
+*
+* Queries without a dataverse. This is a work-around for an Asterix REST API behavior
+* that sometiems throws an error. This is handy for Asterix Metadata queries.
+*/
+AsterixDBConnection.prototype.meta = function(statements, successFn) {
+
+    if ( typeof statements === 'string') {
+        statements = [ statements ];
+    }
+    
+    var query = statements.join("\n");
+    
+    this._api(
+        {
+            "query" : query,
+            "mode"  : "synchronous"
+        },
+        successFn, 
+        "query"
+    );
+
+    return this;
+}
+
+
+/**
+* _api
+*
+* @param json, the data to be passed with the request
+* @param onSuccess, the success function to be run if this succeeds
+* @param endpoint, a string representing one of the Asterix API endpoints 
+* 
+* Documentation of endpoints is here:
+* http://asterix.ics.uci.edu/documentation/api.html
+*
+* This is treated as an internal method for making the actual call to the API.
+*/
+AsterixDBConnection.prototype._api = function(json, onSuccess, endpoint) {
+
+    // The success function is called if the response is successful and returns data,
+    // or is just OK.
+    var success_fn = onSuccess;
+    
+    // This is the error function. Called if something breaks either on the Asterix side
+    // or in the Ajax call.
+    var error_fn = this._properties["error"];
+    var ajax_error_fn = this._properties["ajax_error"];
+    
+    // This is the target endpoint from the REST api, called as a string.
+    var endpoint_url = this._properties["endpoint_root"] + endpoint;    
+
+    // This SDK does not rely on jQuery, but utilizes its Ajax capabilities when present.
+    if (window.jQuery) {
+        $.ajax({
+        
+            // The Asterix API does not accept post requests.
+            type        : 'GET',
+            
+            // This is the endpoint url provided by combining the default
+            // or reconfigured endpoint root along with the appropriate api endpoint
+            // such as "query" or "update".
+            url         : endpoint_url,
+            
+            // This is the data in the format specified on the API documentation.
+            data        : json,
+            
+            // We send out the json datatype to make sure our data is parsed correctly. 
+            dataType    : "json",
+            
+            // The success option calls a function on success, which in this case means
+            // something was returned from the API. However, this does not mean the call succeeded
+            // on the REST API side, it just means we got something back. This also contains the
+            // error return codes, which need to be handled before we call th success function.
+            success     : function(data) {
+
+                // Check Asterix Response for errors
+                // See http://asterix.ics.uci.edu/documentation/api.html#ErrorCodes
+                if (data["error-code"]) { 
+                    error_fn(data);
+                    
+                // Otherwise, run our provided success function
+                } else {
+                    success_fn(data);
+                }
+            },
+            
+            // This is the function that gets called if there is an ajax-related (non-Asterix)
+            // error. Network errors, empty response bodies, syntax errors, and a number of others
+            // can pop up. 
+            error       : function(data) {
+
+                // Some of the Asterix API endpoints return empty responses on success.
+                // However, the ajax function treats these as errors while reporting a
+                // 200 OK code with no payload. So we will check for that, otherwise 
+                // alert of an error. An example response is as follows:
+                // {"readyState":4,"responseText":"","status":200,"statusText":"OK"}
+                if (data["status"] == 200 && data["responseText"] == "") {
+                    success_fn(data);
+                } else {
+                    alert("[Ajax Error]\n" + JSON.stringify(data));
+                }
+            }
+        });
+        
+    } else {
+    
+        // NOTE: This section is in progress; currently API requires jQuery.
+    
+        // First, we encode the parameters of the query to create a new url.
+        api_endpoint = endpoint_url + "?" + Object.keys(json).map(function(k) {
+            return encodeURIComponent(k) + '=' + encodeURIComponent(json[k])
+        }).join('&');
+       
+        // Now, create an XMLHttp object to carry our request. We will call the
+        // UI callback function on ready.
+        var xmlhttp;
+        xmlhttp = new XMLHttpRequest();
+        xmlhttp.open("GET", endpoint_url, true);
+        xmlhttp.send(null);
+        
+        xmlhttp.onreadystatechange = function(){
+            if (xmlhttp.readyState == 4) {
+                if (xmlhttp.status === 200) {
+                    alert(xmlhttp.responseText);
+                    //success.call(null, xmlHttp.responseText);
+                } else {
+                    //error.call(null, xmlHttp.responseText);
+                }
+            } else {
+                // Still processing
+            }
+        };
+    }
+    return this;
+};
+
+// Asterix Expressions - Base
+function AExpression () {
+
+    this._properties = {};
+    this._success = function() {};
+
+    if (arguments.length == 1) {
+        this._properties["value"] = arguments[0];    
+    }
+
+    return this;
+}
+
+
+AExpression.prototype.bind = function(options) {
+    var options = options || {};
+
+    if (options.hasOwnProperty("success")) {
+        this._success = options["success"];
+    }
+
+    if (options.hasOwnProperty("return")) {
+        this._properties["return"] = " return " + options["return"].val();
+    }
+};
+
+
+AExpression.prototype.run = function(successFn) {
+    return this;
+};
+
+
+AExpression.prototype.val = function() { 
+
+    var value = "";
+
+    // If there is a dataverse defined, provide it.
+    if (this._properties.hasOwnProperty("dataverse")) {
+        value += "use dataverse " + this._properties["dataverse"] + ";\n";
+    };
+
+    if (this._properties.hasOwnProperty("value")) {
+        value += this._properties["value"].toString();
+    }
+
+    return value;
+};
+
+
+// @param expressionValue [String]
+AExpression.prototype.set = function(expressionValue) {
+    this._properties["value"] = expressionValue; 
+    return this;
+};
+
+
+// AQL Statements
+// SingleStatement ::= DataverseDeclaration
+//                  | FunctionDeclaration
+//                  | CreateStatement
+//                  | DropStatement
+//                  | LoadStatement
+//                  | SetStatement
+//                  | InsertStatement
+//                  | DeleteStatement
+//                  | Query
+function InsertStatement(quantifiedName, query) {
+    AExpression.call(this);
+    
+    var innerQuery = "";
+    if (query instanceof AExpression) {
+        innerQuery = query.val();
+    } else if (typeof query == "object" && Object.getPrototypeOf( query ) === Object.prototype ) {
+        
+        var insertStatements = [];
+        for (querykey in query) {
+            if (query[querykey] instanceof AExpression) {
+                insertStatements.push('"' + querykey + '" : ' + query[querykey].val());
+            } else if (typeof query[querykey] == "string") {
+                insertStatements.push('"' + querykey + '" : ' + query[querykey]);
+            } else {
+                insertStatements.push('"' + querykey + '" : ' + query[querykey].toString());
+            }
+        }
+        
+        innerQuery = "{" + insertStatements.join(', ') + "}";
+    }
+    
+    var statement = "insert into dataset " + quantifiedName + "(" + innerQuery + ");";
+    
+    AExpression.prototype.set.call(this, statement);
+
+    return this;
+}
+
+InsertStatement.prototype = Object.create(AExpression.prototype);
+InsertStatement.prototype.constructor = InsertStatement;
+
+
+// Delete Statement
+// DeleteStatement ::= "delete" Variable "from" "dataset" QualifiedName ( "where" Expression )?
+function DeleteStatement (variable, quantifiedName, whereExpression) {
+    AExpression.call(this);
+    
+    var statement = "delete " + variable + " from dataset " + quantifiedName;
+    
+    if (whereExpression instanceof AExpression) {
+        statement += " where " + whereExpression.val();
+    }
+    
+    AExpression.prototype.set.call(this, statement);
+    
+    return this;
+}
+
+DeleteStatement.prototype = Object.create(AExpression.prototype);
+DeleteStatement.prototype.constructor = DeleteStatement;
+
+// SetStatement
+//
+// Grammar
+// "set" Identifier StringLiteral
+function SetStatement (identifier, stringLiteral) {
+    AExpression.call(this);
+
+    var statement = "set " + identifier + ' "' + stringLiteral + '";';
+
+    AExpression.prototype.set.call(this, statement);
+
+    return this;
+}
+
+SetStatement.prototype = Object.create(AExpression.prototype);
+SetStatement.prototype.constructor = SetStatement;
+
+
+// Other Expressions
+
+// FunctionExpression
+// Parent: AsterixExpression
+// 
+// @param   options [Various], 
+// @key     function [String], a function to be applid to the expression
+// @key     expression [AsterixExpression or AQLClause] an AsterixExpression/Clause to which the fn will be applied
+function FunctionExpression() {
+    
+    // Initialize superclass
+    AExpression.call(this);
+    
+    this._properties["function"] = "";
+    this._properties["expressions"] = [];
+
+    // Check for fn/expression input
+    if (arguments.length >= 2 && typeof arguments[0] == "string") {
+        
+        this._properties["function"] = arguments[0];
+
+        for (i = 1; i < arguments.length; i++) {
+            if (arguments[i] instanceof AExpression || arguments[i] instanceof AQLClause) {
+                this._properties["expressions"].push(arguments[i]);
+            } else {
+                this._properties["expressions"].push(new AExpression(arguments[i]));
+            }
+        }
+    } 
+
+    // Return FunctionCallExpression object
+    return this;
+}
+
+
+FunctionExpression.prototype = Object.create(AExpression.prototype);
+FunctionExpression.prototype.constructor = FunctionExpression;
+   
+
+FunctionExpression.prototype.val = function () {
+    var fn_args = [];
+    for (var i = 0; i < this._properties["expressions"].length; i++) {
+        fn_args.push(this._properties["expressions"][i].val());
+    }
+
+    return this._properties["function"] + "(" + fn_args.join(", ") + ")";
+};
+
+
+// FLWOGRExpression
+//
+// FLWOGRExpression ::= ( ForClause | LetClause ) ( Clause )* "return" Expression
+function FLWOGRExpression (options) {
+    // Initialize superclass
+    AExpression.call(this);
+
+    this._properties["clauses"] = [];
+    this._properties["minSize"] = 0;
+
+    // Bind options and return
+    this.bind(options);
+    return this;
+}
+
+
+FLWOGRExpression.prototype = Object.create(AExpression.prototype);
+FLWOGRExpression.prototype.constructor = FLWOGRExpression;
+
+
+FLWOGRExpression.prototype.bind = function(options) {
+    AExpression.prototype.bind.call(this, options);
+
+    var options = options || {};
+
+    if (options instanceof SetStatement) {
+         this._properties["clauses"].push(options);
+         this._properties["minSize"] += 1;
+    }
+
+    if (this._properties["clauses"].length <= this._properties["minSize"]) {
+        // Needs to start with for or let clause
+        if (options instanceof ForClause || options instanceof LetClause) {
+            this._properties["clauses"].push(options);
+        }
+    } else {
+        if (options instanceof AQLClause) {
+            this._properties["clauses"].push(options);
+        }
+    }
+
+    return this;
+};
+
+
+FLWOGRExpression.prototype.val = function() {
+    var value = AExpression.prototype.val.call(this);
+
+    var clauseValues = [];
+    for (var c in this._properties["clauses"]) {
+        clauseValues.push(this._properties["clauses"][c].val());
+    }
+
+    return value + clauseValues.join("\n");// + ";";
+};
+
+// Pretty Expression Shorthand
+
+FLWOGRExpression.prototype.ReturnClause = function(expression) {
+    return this.bind(new ReturnClause(expression));
+};
+
+FLWOGRExpression.prototype.ForClause = function() {
+    return this.bind(new ForClause(Array.prototype.slice.call(arguments)));
+};
+
+FLWOGRExpression.prototype.LetClause = function() {
+    return this.bind(new LetClause(Array.prototype.slice.call(arguments)));
+};
+
+FLWOGRExpression.prototype.WhereClause = function() {
+    return this.bind(new WhereClause(Array.prototype.slice.call(arguments)));
+};
+
+FLWOGRExpression.prototype.and = function() {
+    var args = Array.prototype.slice.call(arguments);
+    args.push(true);
+    return this.bind(new WhereClause().and(args));
+};
+
+FLWOGRExpression.prototype.or = function() {
+    var args = Array.prototype.slice.call(arguments);
+    args.push(true);
+    return this.bind(new WhereClause().or(args));
+};
+
+FLWOGRExpression.prototype.OrderbyClause = function() {
+    return this.bind(new OrderbyClause(Array.prototype.slice.call(arguments)));
+};
+
+
+FLWOGRExpression.prototype.GroupClause = function() {
+    return this.bind(new GroupClause(Array.prototype.slice.call(arguments)));
+};
+
+FLWOGRExpression.prototype.LimitClause = function() {
+    return this.bind(new LimitClause(Array.prototype.slice.call(arguments)));
+};
+
+FLWOGRExpression.prototype.DistinctClause = function() {
+    return this.bind(new DistinctClause(Array.prototype.slice.call(arguments)));
+};
+
+FLWOGRExpression.prototype.AQLClause = function() {
+    return this.bind(new AQLClause(Array.prototype.slice.call(arguments)));
+};
+
+
+// AQLClause
+//
+// Base Clause  ::= ForClause | LetClause | WhereClause | OrderbyClause | GroupClause | LimitClause | DistinctClause
+function AQLClause() {
+    this._properties = {};
+    this._properties["clause"] = "";
+    this._properties["stack"] = [];
+    if (typeof arguments[0] == 'string') {
+        this._properties["clause"] = arguments[0];
+    }
+    return this;
+}
+
+AQLClause.prototype.val = function() {
+    var value = this._properties["clause"];
+ 
+    return value;
+};
+
+AQLClause.prototype.bind = function(options) {
+
+    if (options instanceof AQLClause) {
+        this._properties["clause"] += " " + options.val();
+    }
+
+    return this;
+};
+
+AQLClause.prototype.set = function(value) {
+    this._properties["clause"] = value;
+    return this;
+};
+
+
+// ForClause
+//
+// Grammar:
+// "for" Variable ( "at" Variable )? "in" ( Expression )
+//
+// @param for_variable [String], REQUIRED, first variable in clause 
+// @param at_variable [String], NOT REQUIRED, first variable in clause
+// @param expression [AsterixExpression], REQUIRED, expression to evaluate
+function ForClause(for_variable, at_variable, expression) {
+    AQLClause.call(this);
+  
+    var parameters = [];
+    if (arguments[0] instanceof Array) {
+        parameters = arguments[0];
+    } else {
+        parameters = arguments;
+    }
+  
+    this._properties["clause"] = "for " + parameters[0];
+    
+    if (parameters.length == 3) {
+        this._properties["clause"] += " at " + parameters[1];
+        this._properties["clause"] += " in " + parameters[2].val();
+    } else if (parameters.length == 2) {
+        this._properties["clause"] += " in " + parameters[1].val();
+    }
+    
+    return this;
+}
+
+ForClause.prototype = Object.create(AQLClause.prototype);
+ForClause.prototype.constructor = ForClause;
+
+
+// LetClause
+//
+// Grammar:
+// LetClause      ::= "let" Variable ":=" Expression
+//
+// @param let_variable [String]
+// @param expression [AExpression]
+function LetClause(let_variable, expression) {
+    AQLClause.call(this);
+    
+    var parameters = [];
+    if (arguments[0] instanceof Array) {
+        parameters = arguments[0];
+    } else {
+        parameters = arguments;
+    }
+    
+    this._properties["clause"] = "let " + parameters[0] + " := ";
+    this._properties["clause"] += parameters[1].val();
+    
+    return this; 
+}
+
+LetClause.prototype = Object.create(AQLClause.prototype);
+LetClause.prototype.constructor = LetClause;
+
+
+// ReturnClause
+//
+// Grammar:
+// return [AQLExpression]
+function ReturnClause(expression) {
+    AQLClause.call(this);
+
+    this._properties["clause"] = "return ";
+    
+    if (expression instanceof AExpression || expression instanceof AQLClause) {
+        this._properties["clause"] += expression.val();
+    
+    } else if ( typeof expression == "object" && Object.getPrototypeOf( expression ) === Object.prototype ) {
+        
+        this._properties["clause"] += "\n{\n";
+        var returnStatements = [];
+        for (returnValue in expression) {
+           
+            if (expression[returnValue] instanceof AExpression) { 
+                returnStatements.push('"' + returnValue + '" ' + " : " + expression[returnValue].val());            
+            } else if (typeof expression[returnValue] == "string") {          
+                returnStatements.push('"' + returnValue + '" ' + " : " + expression[returnValue]);   
+            }
+        }
+        this._properties["clause"] += returnStatements.join(",\n");
+        this._properties["clause"] += "\n}";  
+    
+    } else {
+        this._properties["clause"] += new AQLClause().set(expression).val();
+    }
+
+    return this;
+}
+
+
+ReturnClause.prototype = Object.create(AQLClause.prototype);
+ReturnClause.prototype.constructor = ReturnClause;
+
+
+// WhereClause
+//
+// Grammar: 
+// ::= "where" Expression
+// 
+// @param expression [BooleanExpression], pushes this expression onto the stack
+function WhereClause(expression) {
+    AQLClause.call(this);
+    
+    this._properties["stack"] = [];
+
+    if (expression instanceof Array) {
+        this.bind(expression[0]);
+    } else {
+        this.bind(expression);
+    }
+    
+    return this;
+}
+
+
+WhereClause.prototype = Object.create(AQLClause.prototype);
+WhereClause.prototype.constructor = WhereClause;
+
+
+WhereClause.prototype.bind = function(expression) {
+    if (expression instanceof AExpression) {
+        this._properties["stack"].push(expression);
+    }
+    return this;
+};
+
+
+WhereClause.prototype.val = function() {
+    var value = "";  
+    
+    if (this._properties["stack"].length == 0) {
+        return value;
+    }
+
+    var count = this._properties["stack"].length - 1;
+    while (count >= 0) {
+        value += this._properties["stack"][count].val() + " ";
+        count -= 1;
+    }
+    
+    return "where " + value;
+};
+
+
+WhereClause.prototype.and = function() {
+    
+    var parameters = [];
+    if (arguments[0] instanceof Array) {
+        parameters = arguments[0];
+    } else {
+        parameters = arguments;
+    }
+    
+    var andClauses = [];  
+    for (var expression in parameters) {
+        
+        if (parameters[expression] instanceof AExpression) {
+            andClauses.push(parameters[expression].val());
+        }
+    }
+    
+    if (andClauses.length > 0) {
+        this._properties["stack"].push(new AExpression().set(andClauses.join(" and ")));
+    }
+    
+    return this;
+};
+
+
+WhereClause.prototype.or = function() {
+
+    var parameters = [];
+    if (arguments[0] instanceof Array) {
+        parameters = arguments[0];
+    } else {
+        parameters = arguments;
+    }
+
+    var orClauses = [];  
+    for (var expression in parameters) {
+        
+        if (parameters[expression] instanceof AExpression) {
+            orClauses.push(parameters[expression].val());
+        }
+    }
+    
+    if (andClauses.length > 0) {
+        this._properties["stack"].push(new AExpression().set(orClauses.join(" and ")));
+    }
+    
+    return this;
+};
+
+// LimitClause
+// Grammar:
+// LimitClause    ::= "limit" Expression ( "offset" Expression )?
+// 
+// @param   limitExpression [REQUIRED, AQLExpression]
+// @param   offsetExpression [OPTIONAL, AQLExpression]
+function LimitClause(limitExpression, offsetExpression) {
+
+    AQLClause.call(this);
+    
+    var parameters = [];
+    if (arguments[0] instanceof Array) {
+        parameters = arguments[0];
+    } else {
+        parameters = arguments;
+    }
+  
+    // limitExpression required
+    this._properties["clause"] = "limit " + parameters[0].val();
+
+    // Optional: Offset
+    if (parameters.length == 2) {
+        this._properties["clause"] += " offset " + parameters[1].val();
+    }
+
+    return this;
+}
+
+LimitClause.prototype = Object.create(AQLClause.prototype);
+LimitClause.prototype.constructor = LimitClause;
+
+
+// OrderbyClause
+//
+// Grammar:
+// OrderbyClause  ::= "order" "by" Expression ( ( "asc" ) | ( "desc" ) )? ( "," Expression ( ( "asc" ) | ( "desc" ) )? )*
+//
+// @params AQLExpressions and asc/desc strings, in any quantity. At least one required. 
+function OrderbyClause() {
+    
+    AQLClause.call(this);
+
+    // At least one argument expression is required, and first should be expression
+    if (arguments.length == 0) {
+        this._properties["clause"] = null;
+        return this;    
+    }
+    
+    var parameters = [];
+    if (arguments[0] instanceof Array) {
+        parameters = arguments[0];
+    } else {
+        parameters = arguments;
+    }
+
+    var expc = 0;
+    var expressions = [];    
+
+    while (expc < parameters.length) {
+      
+        var expression = "";
+
+        if (parameters[expc] instanceof AExpression) {
+            expression += parameters[expc].val();
+        }
+
+        var next = expc + 1;
+        if (next < parameters.length && (parameters[next] == "asc" || parameters[next] == "desc")) {
+            expc++;
+            expression += " " + parameters[expc];
+        }
+        
+        expressions.push(expression);
+      
+        expc++;
+    }
+
+    this._properties["clause"] = "order by " + expressions.join(", ");
+    return this;
+}
+
+OrderbyClause.prototype = Object.create(AQLClause.prototype);
+OrderbyClause.prototype.constructor = OrderbyClause;
+
+
+// GroupClause
+//
+// Grammar:
+// GroupClause    ::= "group" "by" ( Variable ":=" )? Expression ( "," ( Variable ":=" )? Expression )* ( "decor" Variable ":=" Expression ( "," "decor" Variable ":=" Expression )* )? "with" VariableRef ( "," VariableRef )*
+function GroupClause() {
+    AQLClause.call(this);
+
+    if (arguments.length == 0) {
+        this._properties["clause"] = null;
+        return this;    
+    } 
+    
+    var parameters = [];
+    if (arguments[0] instanceof Array) {
+        parameters = arguments[0];
+    } else {
+        parameters = arguments;
+    }
+
+    var expc = 0;
+    var expressions = [];
+    var variableRefs = [];
+    var isDecor = false;
+    
+    while (expc < parameters.length) {
+
+        if (parameters[expc] instanceof AExpression) {
+
+            isDecor = false;
+            expressions.push(parameters[expc].val());
+
+        } else if (typeof parameters[expc] == "string") {       
+            
+            // Special keywords, decor & with
+            if (parameters[expc] == "decor") {
+                isDecor = true;
+            } else if (parameters[expc] == "with") {
+                isDecor = false;
+                expc++;
+                while (expc < parameters.length) {
+                    variableRefs.push(parameters[expc]);
+                    expc++;
+                }
+            
+            // Variables and variable refs
+            } else {
+                
+                var nextc = expc + 1;
+                var expression = "";
+            
+                if (isDecor) {
+                    expression += "decor "; 
+                    isDecor = false;
+                }
+
+                expression += parameters[expc] + " := " + parameters[nextc].val();
+                expressions.push(expression);
+                expc++;
+            }
+        }
+
+        expc++;
+    }
+
+    this._properties["clause"] = "group by " + expressions.join(", ") + " with " + variableRefs.join(", ");
+    return this;
+}
+
+GroupClause.prototype = Object.create(AQLClause.prototype);
+GroupClause.prototype.constructor = GroupClause;
+
+
+// Quantified Expression
+// 
+// Grammar
+// QuantifiedExpression ::= ( ( "some" ) | ( "every" ) ) Variable "in" Expression ( "," Variable "in" Expression )* "satisfies" Expression
+// 
+// @param String some/every
+// @param [AExpression]
+// @param [Aexpression] satisfiesExpression
+function QuantifiedExpression (keyword, expressions, satisfiesExpression) {
+    AExpression.call(this);
+
+    var expression = keyword + " ";
+    var varsInExpressions = [];
+
+    for (var varInExpression in expressions) {
+        varsInExpressions.push(varInExpression + " in " + expressions[varInExpression].val()); 
+    } 
+    expression += varsInExpressions.join(", ") + " satisfies " + satisfiesExpression.val();
+    
+    AExpression.prototype.set.call(this, expression);
+
+    return this;
+}
+
+QuantifiedExpression.prototype = Object.create(AExpression.prototype);
+QuantifiedExpression.prototype.constructor = QuantifiedExpression;
+
+QuantifiedExpression.prototype.val = function() {
+    var value = AExpression.prototype.val.call(this);
+    return "(" + value + ")";    
+};