Пример #1
0
 /**
  * 判断是否存在某个表,为true则存在,否则不存在
  *
  * @param tableName 需要判断的表名
  * @return true则存在,否则不存在
  */
 public boolean hasTable(String tableName) {
   if (tableName != null && !tableName.equalsIgnoreCase("")) {
     if (testSQLiteDatabase()) {
       tableName = tableName.trim();
       String sql =
           "select count(*) as c from Sqlite_master  where type ='table' and name ='"
               + tableName
               + "' ";
       if (sql != null && !sql.equalsIgnoreCase("")) {
         this.queryStr = sql;
       }
       free();
       queryCursor = mSQLiteDatabase.rawQuery(sql, null);
       if (queryCursor.moveToNext()) {
         int count = queryCursor.getInt(0);
         if (count > 0) {
           return true;
         }
       }
     } else {
       CHLogger.e(SQLiteDB.this, "数据库未打开!");
     }
   } else {
     CHLogger.e(SQLiteDB.this, "判断数据表名不能为空!");
   }
   return false;
 }
Пример #2
0
  /**
   * 取得数据库的表信息
   *
   * @return
   */
  public ArrayList<DBMasterEntity> getTables() {
    ArrayList<DBMasterEntity> tadbMasterArrayList = new ArrayList<DBMasterEntity>();
    String sql = "select * from sqlite_master where type='table' order by name";
    CHLogger.i(SQLiteDB.this, sql);
    if (testSQLiteDatabase()) {
      if (sql != null && !sql.equalsIgnoreCase("")) {
        this.queryStr = sql;
        free();
        queryCursor =
            mSQLiteDatabase.rawQuery(
                "select * from sqlite_master where type='table' order by name", null);

        if (queryCursor != null) {
          while (queryCursor.moveToNext()) {
            if (queryCursor != null && queryCursor.getColumnCount() > 0) {
              DBMasterEntity tadbMasterEntity = new DBMasterEntity();
              tadbMasterEntity.setType(queryCursor.getString(0));
              tadbMasterEntity.setName(queryCursor.getString(1));
              tadbMasterEntity.setTbl_name(queryCursor.getString(2));
              tadbMasterEntity.setRootpage(queryCursor.getInt(3));
              tadbMasterEntity.setSql(queryCursor.getString(4));
              tadbMasterArrayList.add(tadbMasterEntity);
            }
          }
        } else {
          CHLogger.e(SQLiteDB.this, "数据库未打开!");
        }
      }
    } else {
      CHLogger.e(SQLiteDB.this, "数据库未打开!");
    }
    return tadbMasterArrayList;
  }
Пример #3
0
 /**
  * 查询记录
  *
  * @param cursorFactory
  * @param distinct 限制重复,如过为true则限制,false则不用管
  * @param table 表名
  * @param columns 需要查询的列
  * @param selection 格式化的作为 SQL WHERE子句(不含WHERE本身)。 传递null返回给定表的所有行。
  * @param selectionArgs
  * @param groupBy groupBy语句
  * @param having having语句
  * @param orderBy orderBy语句
  * @param limit limit语句
  * @return
  */
 public ArrayList<CHHashMap<String>> queryWithFactory(
     CursorFactory cursorFactory,
     boolean distinct,
     String table,
     String[] columns,
     String selection,
     String[] selectionArgs,
     String groupBy,
     String having,
     String orderBy,
     String limit) {
   if (testSQLiteDatabase()) {
     free();
     this.queryCursor =
         mSQLiteDatabase.queryWithFactory(
             cursorFactory,
             distinct,
             table,
             columns,
             selection,
             selectionArgs,
             groupBy,
             having,
             orderBy,
             limit);
     if (queryCursor != null) {
       return getQueryCursorData();
     } else {
       CHLogger.e(SQLiteDB.this, "查询" + table + "错误");
     }
   } else {
     CHLogger.e(SQLiteDB.this, "数据库未打开!");
   }
   return null;
 }
Пример #4
0
 /**
  * 数据库错误信息 并显示当前的SQL语句
  *
  * @return
  */
 public String error() {
   if (this.queryStr != null && !queryStr.equalsIgnoreCase("")) {
     error = error + "\n [ SQL语句 ] : " + queryStr;
   }
   CHLogger.e(SQLiteDB.this, error);
   return error;
 }
Пример #5
0
 /**
  * 插入记录
  *
  * @param table 需要插入到的表
  * @param nullColumnHack 不允许为空的行
  * @param values 插入的值
  * @return
  */
 public boolean insertOrThrow(String table, String nullColumnHack, ContentValues values) {
   if (testSQLiteDatabase()) {
     return mSQLiteDatabase.insertOrThrow(table, nullColumnHack, values) > 0;
   } else {
     CHLogger.e(SQLiteDB.this, "数据库未打开!");
     return false;
   }
 }
Пример #6
0
 /**
  * 更新记录
  *
  * @param table 表名字
  * @param values
  * @param whereClause
  * @param whereArgs
  * @return 返回true执行成功,否则执行失败
  */
 public boolean update(
     String table, ContentValues values, String whereClause, String[] whereArgs) {
   if (testSQLiteDatabase()) {
     return mSQLiteDatabase.update(table, values, whereClause, whereArgs) > 0;
   } else {
     CHLogger.e(SQLiteDB.this, "数据库未打开!");
     return false;
   }
 }
Пример #7
0
  /**
   * 删除记录
   *
   * @param table 被删除的表名
   * @param whereClause 设置的WHERE子句时,删除指定的数据 ,如果null会删除所有的行。
   * @param whereArgs
   * @return 返回true执行成功,否则执行失败
   */
  public boolean delete(String table, String whereClause, String[] whereArgs) {
    if (testSQLiteDatabase()) {
      return mSQLiteDatabase.delete(table, whereClause, whereArgs) > 0;

    } else {
      CHLogger.e(SQLiteDB.this, "数据库未打开!");
      return false;
    }
  }
Пример #8
0
 /**
  * 获得所有的查询数据集中的数据
  *
  * @return
  */
 public MapArrayList<String> getQueryCursorData() {
   MapArrayList<String> arrayList = null;
   if (queryCursor != null) {
     try {
       arrayList = new MapArrayList<String>();
       queryCursor.moveToFirst();
       while (queryCursor.moveToNext()) {
         arrayList.add(DBUtils.getRowData(queryCursor));
       }
     } catch (Exception e) {
       e.printStackTrace();
       CHLogger.e(SQLiteDB.this, "当前数据集获取失败!");
     }
   } else {
     CHLogger.e(SQLiteDB.this, "当前数据集不存在!");
   }
   return arrayList;
 }
Пример #9
0
 /**
  * 执行查询,主要是SELECT, SHOW 等指令 返回数据集
  *
  * @param sql sql语句
  * @param selectionArgs
  * @return
  */
 public ArrayList<CHHashMap<String>> query(String sql, String[] selectionArgs) {
   CHLogger.i(SQLiteDB.this, sql);
   if (testSQLiteDatabase()) {
     if (sql != null && !sql.equalsIgnoreCase("")) {
       this.queryStr = sql;
     }
     free();
     this.queryCursor = mSQLiteDatabase.rawQuery(sql, selectionArgs);
     if (queryCursor != null) {
       return getQueryCursorData();
     } else {
       CHLogger.e(SQLiteDB.this, "执行" + sql + "错误");
     }
   } else {
     CHLogger.e(SQLiteDB.this, "数据库未打开!");
   }
   return null;
 }
Пример #10
0
  /**
   * 执行查询,主要是SELECT, SHOW 等指令 返回数据集
   *
   * @param clazz
   * @param distinct 限制重复,如过为true则限制,false则不用管
   * @param where where语句
   * @param groupBy groupBy语句
   * @param having having语句
   * @param orderBy orderBy语句
   * @param limit limit语句
   * @return
   */
  @SuppressWarnings("unchecked")
  public <T> List<T> query(
      Class<?> clazz,
      boolean distinct,
      String where,
      String groupBy,
      String having,
      String orderBy,
      String limit) {

    if (testSQLiteDatabase()) {
      List<T> list = null;
      SqlBuilder getSqlBuilder =
          SqlBuilderFactory.getInstance().getSqlBuilder(SqlBuilderFactory.SELECT);
      getSqlBuilder.setClazz(clazz);
      getSqlBuilder.setCondition(distinct, where, groupBy, having, orderBy, limit);
      try {
        String sqlString = getSqlBuilder.getSqlStatement();
        CHLogger.i(SQLiteDB.this, "执行" + sqlString);
        free();
        this.queryCursor = mSQLiteDatabase.rawQuery(sqlString, null);
        list = (List<T>) DBUtils.getListEntity(clazz, this.queryCursor);
      } catch (IllegalArgumentException e) {
        // TODO Auto-generated catch block
        CHLogger.e(SQLiteDB.this, e.getMessage());
        e.printStackTrace();

      } catch (CHDBException e) {
        // TODO Auto-generated catch block
        CHLogger.e(SQLiteDB.this, e.getMessage());
        e.printStackTrace();
      } catch (IllegalAccessException e) {
        // TODO Auto-generated catch block
        CHLogger.e(SQLiteDB.this, e.getMessage());
        e.printStackTrace();
      }
      return list;
    } else {
      return null;
    }
  }
Пример #11
0
 /**
  * 删除表
  *
  * @param tableName
  * @return 为true创建成功,为false创建失败
  */
 public boolean dropTable(String tableName) {
   boolean isSuccess = false;
   if (tableName != null && !tableName.equalsIgnoreCase("")) {
     if (testSQLiteDatabase()) {
       try {
         String sqlString = "DROP TABLE " + tableName;
         execute(sqlString, null);
         isSuccess = true;
       } catch (Exception e) {
         // TODO Auto-generated catch block
         isSuccess = false;
         e.printStackTrace();
         CHLogger.e(SQLiteDB.this, e.getMessage());
       }
     } else {
       CHLogger.e(SQLiteDB.this, "数据库未打开!");
       return false;
     }
   } else {
     CHLogger.e(SQLiteDB.this, "删除数据表名不能为空!");
   }
   return isSuccess;
 }
Пример #12
0
 /**
  * 创建表
  *
  * @param clazz
  * @return 为true创建成功,为false创建失败
  */
 public boolean creatTable(Class<?> clazz) {
   boolean isSuccess = false;
   if (testSQLiteDatabase()) {
     try {
       String sqlString = DBUtils.creatTableSql(clazz);
       execute(sqlString, null);
       isSuccess = true;
     } catch (CHDBException e) {
       // TODO Auto-generated catch block
       isSuccess = false;
       e.printStackTrace();
       CHLogger.e(SQLiteDB.this, e.getMessage());
     } catch (CHDBNotOpenException e) {
       // TODO Auto-generated catch block
       isSuccess = false;
       e.printStackTrace();
       CHLogger.e(SQLiteDB.this, e.getMessage());
     }
   } else {
     CHLogger.e(SQLiteDB.this, "数据库未打开!");
     return false;
   }
   return isSuccess;
 }