From 91b6743ea624350f1aab700b6d857f5d53f53a89 Mon Sep 17 00:00:00 2001 From: barblade Date: Thu, 12 Jun 2014 14:12:21 +0200 Subject: [PATCH] =?UTF-8?q?Dodanie=20klas=20do=20obs=C5=82ugi=20sqlite?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- src/main/java/db/Cookbook.java | 96 ++++++++++++++++++++++++++++++++++ src/main/java/db/Recipe.java | 52 ++++++++++++++++++ 2 files changed, 148 insertions(+) create mode 100644 src/main/java/db/Cookbook.java create mode 100644 src/main/java/db/Recipe.java diff --git a/src/main/java/db/Cookbook.java b/src/main/java/db/Cookbook.java new file mode 100644 index 0000000..7954689 --- /dev/null +++ b/src/main/java/db/Cookbook.java @@ -0,0 +1,96 @@ +package db; + +import java.sql.*; +import java.util.LinkedList; +import java.util.List; + +import db.Recipe; + +public class Cookbook { + + public static final String DRIVER = "org.sqlite.JDBC"; + public static final String DB_URL = "jdbc:sqlite:cookbook"; + + private Connection conn; + private Statement stat; + + + public Cookbook() { + try { + Class.forName(Cookbook.DRIVER); + } catch (ClassNotFoundException e) { + System.err.println("Brak sterownika JDBC"); + e.printStackTrace(); + } + + try { + conn = DriverManager.getConnection(DB_URL); + stat = conn.createStatement(); + } catch (SQLException e) { + System.err.println("Problem z otwarciem polaczenia"); + e.printStackTrace(); + } + + createTables(); + } + + public boolean createTables() { + String createRecipes = "CREATE TABLE IF NOT EXISTS recipes (id INTEGER PRIMARY KEY AUTOINCREMENT, name varchar, ingredients varchar, description varchar, tags varchar)"; + + try { + stat.execute(createRecipes); + } catch (SQLException e) { + System.err.println("Blad przy tworzeniu tabeli"); + e.printStackTrace(); + return false; + } + return true; + } + + public boolean insertRecipe(String name, String ingredients, String description, String tags) { + try { + PreparedStatement prepStmt = conn.prepareStatement( + "INSERT INTO recipes VALUES (NULL, ?, ?, ?, ?);"); + prepStmt.setString(1, name); + prepStmt.setString(2, ingredients); + prepStmt.setString(3, description); + prepStmt.setString(4, tags); + prepStmt.execute(); + } catch (SQLException e) { + System.err.println("Blad przy wstawianiu przepisu"); + e.printStackTrace(); + return false; + } + return true; + } + + public List selectRecipes() { + List recipes = new LinkedList(); + try { + ResultSet result = stat.executeQuery("SELECT * FROM recipes"); + int id; + String name, ingredients, description, tags; + while(result.next()) { + id = result.getInt("id"); + name = result.getString("name"); + ingredients = result.getString("ingredients"); + description = result.getString("description"); + tags = result.getString("tags"); + recipes.add(new Recipe(id, name, ingredients, description, tags)); + } + } catch (SQLException e) { + e.printStackTrace(); + return null; + } + return recipes; + } + + public void closeConnection() { + try { + conn.close(); + } catch (SQLException e) { + System.err.println("Problem z zamknieciem polaczenia"); + e.printStackTrace(); + } + } +} diff --git a/src/main/java/db/Recipe.java b/src/main/java/db/Recipe.java new file mode 100644 index 0000000..e76cd2c --- /dev/null +++ b/src/main/java/db/Recipe.java @@ -0,0 +1,52 @@ +package db; + +public class Recipe { + private int id; + private String name; + private String ingredients; + private String description; + private String tags; + + public int getId() { + return id; + } + public void setId(int id) { + this.id = id; + } + public String getName() { + return name; + } + public void setImie(String name) { + this.name = name; + } + public String getIngredients() { + return ingredients; + } + public void setIngredients(String ingredients) { + this.ingredients = ingredients; + } + public String getDescription() { + return description; + } + public void setDescription(String description) { + this.description = description; + } + public String getTags() { + return tags; + } + public void setTags(String tags) { + this.tags = tags; + } + + + public Recipe() {} + public Recipe(int id, String name, String ingredients, String description, String tags) { + this.id = id; + this.name = name; + this.ingredients = ingredients; + this.description = description; + this.tags = tags; + } + + +}