Пример #1
0
 public static String getCreateTableSQL(Class<? extends Model> modelClass) {
   Model m = null;
   try {
     m = modelClass.newInstance();
   } catch (Exception e) {
     e.printStackTrace();
     return null;
   }
   StringBuilder sb = new StringBuilder(100);
   sb.append("CREATE TABLE IF NOT EXISTS ");
   sb.append(m.tableName())
       .append("(")
       .append(m.idColumnName())
       .append(" INTEGER PRIMARY KEY AUTOINCREMENT");
   for (Field f : m.getClass().getDeclaredFields()) {
     if (f.isAnnotationPresent(Column.class)) {
       Column c = f.getAnnotation(Column.class);
       if (!c.pk()) {
         sb.append(",").append(c.name()).append(" ").append(c.type());
       }
     }
   }
   sb.append(");");
   return sb.toString();
 }
Пример #2
0
  public static String getUpdateSQL(Model entity) {
    Map<String, String> keyValueMap = entity.toKeyValueMap();
    String updatequery = "UPDATE " + entity.tableName() + " SET ";
    for (Map.Entry<String, String> entry : keyValueMap.entrySet()) {
      updatequery += entry.getKey() + "=" + entry.getValue() + ", ";
    }

    return updatequery.substring(0, updatequery.length() - 2) + " WHERE _id = " + entity.getId();
  }
Пример #3
0
  public static String getDeleteSQL(Model entity) {

    return "DELETE FROM "
        + entity.tableName()
        + " WHERE "
        + entity.idColumnName()
        + " = "
        + entity.getId();
  }
Пример #4
0
 public static String getSelectSQL(Class<? extends Model> cls) {
   Model entity;
   try {
     entity = cls.newInstance();
     return "SELECT * FROM " + entity.tableName();
   } catch (Exception e) {
     e.printStackTrace();
     return null;
   }
 }
Пример #5
0
 public static String getDropTableSQL(Class<? extends Model> modelClass) {
   Model m = null;
   try {
     m = modelClass.newInstance();
   } catch (Exception e) {
     e.printStackTrace();
     return null;
   }
   StringBuilder sb = new StringBuilder(35);
   sb.append("DROP TABLE IF EXISTS ").append(m.tableName()).append(";");
   return sb.toString();
 }
Пример #6
0
  public static String getInsertSQL(Model entity) {
    Map<String, String> keyValueMap = entity.toKeyValueMap();
    String savequery = "INSERT into " + entity.tableName();
    String field = "(";
    String value = " values(";
    for (Map.Entry<String, String> entry : keyValueMap.entrySet()) {
      field += entry.getKey() + ",";
      value += entry.getValue() + ",";
    }

    return savequery
        + field.substring(0, field.length() - 1)
        + ")"
        + value.substring(0, value.length() - 1)
        + ")";
  }
Пример #7
0
  public static String getSelectSQL(
      Class<? extends Model> cls,
      String fieldName1,
      Object value,
      String fieldName2,
      Object fValue,
      Object tValue) {
    // TODO Auto-generated method stub
    Model entity;
    String arg1 = value.toString();
    String fArg2 = fValue.toString();
    String tArg2 = tValue.toString();
    try {
      entity = cls.newInstance();
      String columnName1 = entity.columnName(fieldName1);
      String columnName2 = entity.columnName(fieldName2);
      DataType type = cls.getDeclaredField(fieldName1).getAnnotation(Column.class).type();
      if (type == DataType.TEXT) {
        arg1 = "'" + value + "'";
      }
      type = cls.getDeclaredField(fieldName2).getAnnotation(Column.class).type();
      if (type == DataType.TEXT || type == DataType.DATE || type == DataType.DATETIME) {
        fArg2 = "'" + fValue + "'";
        tArg2 = "'" + tValue + "'";
      }

      return "SELECT * FROM "
          + entity.tableName()
          + " WHERE "
          + columnName1
          + " = "
          + arg1
          + " AND "
          + columnName2
          + " >= "
          + fArg2
          + " AND "
          + columnName2
          + " <= "
          + tArg2;
    } catch (Exception e) {
      e.printStackTrace();
      return null;
    }
  }
Пример #8
0
 public static String getSelectSQL(Class<? extends Model> cls, String fieldName, Object value) {
   Model entity;
   String args = value.toString();
   String selectSQLString = "";
   try {
     entity = cls.newInstance();
     String where = entity.columnName(fieldName) + " = ";
     if (!fieldName.equals("id")) {
       DataType type = cls.getDeclaredField(fieldName).getAnnotation(Column.class).type();
       if (type == DataType.TEXT) {
         args = "'" + value + "'";
       }
     }
     selectSQLString = "SELECT * FROM " + entity.tableName() + " WHERE " + where + args;
     if (entity instanceof Note) {
       selectSQLString += " order by date desc";
     }
     System.out.println(selectSQLString);
     return selectSQLString;
   } catch (Exception e) {
     e.printStackTrace();
     return null;
   }
 }