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@ -162,14 +162,35 @@ final class SqlHelper extends SQLiteOpenHelper { |
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return count; |
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} |
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/** |
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* 关键字模糊检索全文 |
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* |
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* @param column 需要查找的列 |
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* @param mathSql 关键字语法，exsimple “white OR green”、“blue AND red”、“white NOT green” |
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*/ |
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public static <T extends DbEntity> List<T> searchData(SQLiteDatabase db, Class<T> clazz, |
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String column, String mathSql) { |
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String sql = "SELECT * FROM " |
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+ CommonUtil.getClassName(clazz) |
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+ " WHERE " |
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+ column |
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+ " MATCH '" |
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+ mathSql |
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+ "'"; |
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Cursor cursor = db.rawQuery(sql, null); |
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List<T> data = cursor.getCount() > 0 ? newInstanceEntity(db, clazz, cursor) : null; |
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closeCursor(cursor); |
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return data; |
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} |
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/** |
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* 检查某个字段的值是否存在 |
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* |
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* @param expression 字段和值"url=xxx" |
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* @return {@code true}该字段的对应的value已存在 |
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*/ |
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static synchronized boolean checkDataExist(SQLiteDatabase db, Class clazz, |
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String... expression) { |
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static synchronized boolean checkDataExist(SQLiteDatabase db, Class clazz, String... expression) { |
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db = checkDb(db); |
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CheckUtil.checkSqlExpression(expression); |
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String sql = |
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@ -414,12 +435,16 @@ final class SqlHelper extends SQLiteOpenHelper { |
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* @return true，该数据库实体对应的表存在；false，不存在 |
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*/ |
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static synchronized boolean tableExists(SQLiteDatabase db, Class clazz) { |
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return tableExists(db, CommonUtil.getClassName(clazz)); |
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} |
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static synchronized boolean tableExists(SQLiteDatabase db, String tableName) { |
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db = checkDb(db); |
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Cursor cursor = null; |
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try { |
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StringBuilder sb = new StringBuilder(); |
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sb.append("SELECT COUNT(*) AS c FROM sqlite_master WHERE type='table' AND name='"); |
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sb.append(CommonUtil.getClassName(clazz)); |
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sb.append(tableName); |
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sb.append("'"); |
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print(TABLE_EXISTS, sb.toString()); |
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cursor = db.rawQuery(sb.toString(), null); |
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@ -446,14 +471,15 @@ final class SqlHelper extends SQLiteOpenHelper { |
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*/ |
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static synchronized void createTable(SQLiteDatabase db, Class clazz, String tableName) { |
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db = checkDb(db); |
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createFTSTable(db); |
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List<Field> fields = CommonUtil.getAllFields(clazz); |
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if (fields != null && fields.size() > 0) { |
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//外键Map，在Sqlite3中foreign修饰的字段必须放在最后
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final List<Field> foreignArray = new ArrayList<>(); |
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StringBuilder sb = new StringBuilder(); |
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sb.append("create table ") |
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sb.append("create VIRTUAL table ") |
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.append(TextUtils.isEmpty(tableName) ? CommonUtil.getClassName(clazz) : tableName) |
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.append("("); |
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.append(" USING fts4("); |
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for (Field field : fields) { |
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field.setAccessible(true); |
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if (SqlUtil.ignoreField(field)) { |
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@ -461,8 +487,7 @@ final class SqlHelper extends SQLiteOpenHelper { |
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} |
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Class<?> type = field.getType(); |
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sb.append(field.getName()); |
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if (type == String.class || type == Map.class || type == List.class || SqlUtil.isOneToOne( |
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field) || type.isEnum()) { |
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if (type == String.class || SqlUtil.isOneToOne(field) || type.isEnum()) { |
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sb.append(" varchar"); |
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} else if (type == int.class || type == Integer.class) { |
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sb.append(" interger"); |
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@ -478,6 +503,8 @@ final class SqlHelper extends SQLiteOpenHelper { |
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sb.append(" data"); |
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} else if (type == byte.class || type == Byte.class) { |
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sb.append(" blob"); |
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} else if (type == Map.class || type == List.class) { |
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sb.append(" text"); |
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} else { |
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continue; |
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} |
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@ -486,7 +513,7 @@ final class SqlHelper extends SQLiteOpenHelper { |
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} |
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if (SqlUtil.isForeign(field)) { |
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foreignArray.add(field); |
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//foreignArray.add(field);
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} |
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if (SqlUtil.isNoNull(field)) { |
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@ -514,6 +541,17 @@ final class SqlHelper extends SQLiteOpenHelper { |
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close(db); |
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} |
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/** |
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* 创建分词表 |
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*/ |
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private static void createFTSTable(SQLiteDatabase db) { |
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String tableName = "ariaFts"; |
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String sql = "CREATE VIRTUAL TABLE " + tableName + " USING fts4(tokenize= porter)"; |
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if (!tableExists(db, tableName)) { |
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db.execSQL(sql); |
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} |
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} |
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/** |
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* 打印数据库日志 |
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* |
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AriaLyy
7 years ago