# Source: vertx-sql-js/sql_operations.js

    /*
     * Copyright 2014 Red Hat, Inc.
     *
     * Red Hat licenses this file to you under the Apache License, version 2.0
     * (the "License"); you may not use this file except in compliance with the
     * License.  You may obtain a copy of the License at:
     *
     * http://www.apache.org/licenses/LICENSE-2.0
     *
     * Unless required by applicable law or agreed to in writing, software
     * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
     * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
     * License for the specific language governing permissions and limitations
     * under the License.
     */

    /** @module vertx-sql-js/sql_operations */
    var utils = require('vertx-js/util/utils');

    var io = Packages.io;
    var JsonObject = io.vertx.core.json.JsonObject;
    var JSQLOperations = Java.type('io.vertx.ext.sql.SQLOperations');
    var UpdateResult = Java.type('io.vertx.ext.sql.UpdateResult');
    var ResultSet = Java.type('io.vertx.ext.sql.ResultSet');

    /**
     Represents a SQL query interface to a database

     @class
    */
    var SQLOperations = function(j_val) {

      var j_sQLOperations = j_val;
      var that = this;

      /**
       Executes the given SQL <code>SELECT</code> statement which returns the results of the query.

       @public
       @param sql {string} the SQL to execute. For example <code>SELECT * FROM table ...</code>.
       @param resultHandler {function} the handler which is called once the operation completes. It will return a <code>ResultSet</code>.
       @return {SQLOperations}
       */
      this.query = function(sql, resultHandler) {
        var __args = arguments;
        if (__args.length === 2 && typeof __args[0] === 'string' && typeof __args[1] === 'function') {
          j_sQLOperations["query(java.lang.String,io.vertx.core.Handler)"](sql, function(ar) {
          if (ar.succeeded()) {
            resultHandler(utils.convReturnDataObject(ar.result()), null);
          } else {
            resultHandler(null, ar.cause());
          }
        });
          return that;
        } else throw new TypeError('function invoked with invalid arguments');
      };

      /**
       Executes the given SQL <code>SELECT</code> prepared statement which returns the results of the query.

       @public
       @param sql {string} the SQL to execute. For example <code>SELECT * FROM table ...</code>.
       @param params {todo} these are the parameters to fill the statement.
       @param resultHandler {function} the handler which is called once the operation completes. It will return a <code>ResultSet</code>.
       @return {SQLOperations}
       */
      this.queryWithParams = function(sql, params, resultHandler) {
        var __args = arguments;
        if (__args.length === 3 && typeof __args[0] === 'string' && typeof __args[1] === 'object' && __args[1] instanceof Array && typeof __args[2] === 'function') {
          j_sQLOperations["queryWithParams(java.lang.String,io.vertx.core.json.JsonArray,io.vertx.core.Handler)"](sql, utils.convParamJsonArray(params), function(ar) {
          if (ar.succeeded()) {
            resultHandler(utils.convReturnDataObject(ar.result()), null);
          } else {
            resultHandler(null, ar.cause());
          }
        });
          return that;
        } else throw new TypeError('function invoked with invalid arguments');
      };

      /**
       Execute a one shot SQL statement that returns a single SQL row. This method will reduce the boilerplate code by
       getting a connection from the pool (this object) and return it back after the execution. Only the first result
       from the result set is returned.

       @public
       @param sql {string} the statement to execute
       @param handler {function} the result handler
       @return {SQLOperations} self
       */
      this.querySingle = function(sql, handler) {
        var __args = arguments;
        if (__args.length === 2 && typeof __args[0] === 'string' && typeof __args[1] === 'function') {
          j_sQLOperations["querySingle(java.lang.String,io.vertx.core.Handler)"](sql, function(ar) {
          if (ar.succeeded()) {
            handler(utils.convReturnJson(ar.result()), null);
          } else {
            handler(null, ar.cause());
          }
        });
          return that;
        } else throw new TypeError('function invoked with invalid arguments');
      };

      /**
       Execute a one shot SQL statement with arguments that returns a single SQL row. This method will reduce the
       boilerplate code by getting a connection from the pool (this object) and return it back after the execution.
       Only the first result from the result set is returned.

       @public
       @param sql {string} the statement to execute
       @param arguments {todo} the arguments
       @param handler {function} the result handler
       @return {SQLOperations} self
       */
      this.querySingleWithParams = function(sql, arguments, handler) {
        var __args = arguments;
        if (__args.length === 3 && typeof __args[0] === 'string' && typeof __args[1] === 'object' && __args[1] instanceof Array && typeof __args[2] === 'function') {
          j_sQLOperations["querySingleWithParams(java.lang.String,io.vertx.core.json.JsonArray,io.vertx.core.Handler)"](sql, utils.convParamJsonArray(arguments), function(ar) {
          if (ar.succeeded()) {
            handler(utils.convReturnJson(ar.result()), null);
          } else {
            handler(null, ar.cause());
          }
        });
          return that;
        } else throw new TypeError('function invoked with invalid arguments');
      };

      /**
       Executes the given SQL statement which may be an <code>INSERT</code>, <code>UPDATE</code>, or <code>DELETE</code>
       statement.

       @public
       @param sql {string} the SQL to execute. For example <code>INSERT INTO table ...</code>
       @param resultHandler {function} the handler which is called once the operation completes.
       @return {SQLOperations}
       */
      this.update = function(sql, resultHandler) {
        var __args = arguments;
        if (__args.length === 2 && typeof __args[0] === 'string' && typeof __args[1] === 'function') {
          j_sQLOperations["update(java.lang.String,io.vertx.core.Handler)"](sql, function(ar) {
          if (ar.succeeded()) {
            resultHandler(utils.convReturnDataObject(ar.result()), null);
          } else {
            resultHandler(null, ar.cause());
          }
        });
          return that;
        } else throw new TypeError('function invoked with invalid arguments');
      };

      /**
       Executes the given prepared statement which may be an <code>INSERT</code>, <code>UPDATE</code>, or <code>DELETE</code>
       statement with the given parameters

       @public
       @param sql {string} the SQL to execute. For example <code>INSERT INTO table ...</code>
       @param params {todo} these are the parameters to fill the statement.
       @param resultHandler {function} the handler which is called once the operation completes.
       @return {SQLOperations}
       */
      this.updateWithParams = function(sql, params, resultHandler) {
        var __args = arguments;
        if (__args.length === 3 && typeof __args[0] === 'string' && typeof __args[1] === 'object' && __args[1] instanceof Array && typeof __args[2] === 'function') {
          j_sQLOperations["updateWithParams(java.lang.String,io.vertx.core.json.JsonArray,io.vertx.core.Handler)"](sql, utils.convParamJsonArray(params), function(ar) {
          if (ar.succeeded()) {
            resultHandler(utils.convReturnDataObject(ar.result()), null);
          } else {
            resultHandler(null, ar.cause());
          }
        });
          return that;
        } else throw new TypeError('function invoked with invalid arguments');
      };

      // A reference to the underlying Java delegate
      // NOTE! This is an internal API and must not be used in user code.
      // If you rely on this property your code is likely to break if we change it / remove it without warning.
      this._jdel = j_sQLOperations;
    };

    SQLOperations._jclass = utils.getJavaClass("io.vertx.ext.sql.SQLOperations");
    SQLOperations._jtype = {
      accept: function(obj) {
        return SQLOperations._jclass.isInstance(obj._jdel);
      },
      wrap: function(jdel) {
        var obj = Object.create(SQLOperations.prototype, {});
        SQLOperations.apply(obj, arguments);
        return obj;
      },
      unwrap: function(obj) {
        return obj._jdel;
      }
    };
    SQLOperations._create = function(jdel) {
      var obj = Object.create(SQLOperations.prototype, {});
      SQLOperations.apply(obj, arguments);
      return obj;
    }
    module.exports = SQLOperations;