org.greenrobot.greendao.database.Database.isDbLockedByCurrentThread()方法的使用及代码示例

x33g5p2x  于2022-01-18 转载在 其他  
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本文整理了Java中org.greenrobot.greendao.database.Database.isDbLockedByCurrentThread()方法的一些代码示例，展示了Database.isDbLockedByCurrentThread()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Database.isDbLockedByCurrentThread()方法的具体详情如下：
包路径：org.greenrobot.greendao.database.Database
类名称：Database
方法名：isDbLockedByCurrentThread

Database.isDbLockedByCurrentThread介绍

暂无

代码示例

代码示例来源：origin: greenrobot/greenDAO

  1. private long executeInsert(T entity, DatabaseStatement stmt, boolean setKeyAndAttach) {
  2.   long rowId;
  3.   if (db.isDbLockedByCurrentThread()) {
  4.     rowId = insertInsideTx(entity, stmt);
  5.   } else {
  6.     // Do TX to acquire a connection before locking the stmt to avoid deadlocks
  7.     db.beginTransaction();
  8.     try {
  9.       rowId = insertInsideTx(entity, stmt);
  10.       db.setTransactionSuccessful();
  11.     } finally {
  12.       db.endTransaction();
  13.     }
  14.   }
  15.   if (setKeyAndAttach) {
  16.     updateKeyAfterInsertAndAttach(entity, rowId, true);
  17.   }
  18.   return rowId;
  19. }

代码示例来源：origin: greenrobot/greenDAO

  1. /** Deletes an entity with the given PK from the database. Currently, only single value PK entities are supported. */
  2. public void deleteByKey(K key) {
  3.   assertSinglePk();
  4.   DatabaseStatement stmt = statements.getDeleteStatement();
  5.   if (db.isDbLockedByCurrentThread()) {
  6.     synchronized (stmt) {
  7.       deleteByKeyInsideSynchronized(key, stmt);
  8.     }
  9.   } else {
  10.     // Do TX to acquire a connection before locking the stmt to avoid deadlocks
  11.     db.beginTransaction();
  12.     try {
  13.       synchronized (stmt) {
  14.         deleteByKeyInsideSynchronized(key, stmt);
  15.       }
  16.       db.setTransactionSuccessful();
  17.     } finally {
  18.       db.endTransaction();
  19.     }
  20.   }
  21.   if (identityScope != null) {
  22.     identityScope.remove(key);
  23.   }
  24. }

代码示例来源：origin: greenrobot/greenDAO

  1. /**
  2.  * Deletes all matching entities without detaching them from the identity scope (aka session/cache). Note that this
  3.  * method may lead to stale entity objects in the session cache. Stale entities may be returned when loaded by
  4.  * their
  5.  * primary key, but not using queries.
  6.  */
  7. public void executeDeleteWithoutDetachingEntities() {
  8.   checkThread();
  9.   Database db = dao.getDatabase();
  10.   if (db.isDbLockedByCurrentThread()) {
  11.     dao.getDatabase().execSQL(sql, parameters);
  12.   } else {
  13.     // Do TX to acquire a connection before locking this to avoid deadlocks
  14.     // Locking order as described in AbstractDao
  15.     db.beginTransaction();
  16.     try {
  17.       dao.getDatabase().execSQL(sql, parameters);
  18.       db.setTransactionSuccessful();
  19.     } finally {
  20.       db.endTransaction();
  21.     }
  22.   }
  23. }

代码示例来源：origin: greenrobot/greenDAO

  1. public void update(T entity) {
  2.   assertSinglePk();
  3.   DatabaseStatement stmt = statements.getUpdateStatement();
  4.   if (db.isDbLockedByCurrentThread()) {
  5.     synchronized (stmt) {
  6.       if (isStandardSQLite) {
  7.         updateInsideSynchronized(entity, (SQLiteStatement) stmt.getRawStatement(), true);
  8.       } else {
  9.         updateInsideSynchronized(entity, stmt, true);
  10.       }
  11.     }
  12.   } else {
  13.     // Do TX to acquire a connection before locking the stmt to avoid deadlocks
  14.     db.beginTransaction();
  15.     try {
  16.       synchronized (stmt) {
  17.         updateInsideSynchronized(entity, stmt, true);
  18.       }
  19.       db.setTransactionSuccessful();
  20.     } finally {
  21.       db.endTransaction();
  22.     }
  23.   }
  24. }

代码示例来源：origin: org.greenrobot/greendao

  1. private long executeInsert(T entity, DatabaseStatement stmt, boolean setKeyAndAttach) {
  2.   long rowId;
  3.   if (db.isDbLockedByCurrentThread()) {
  4.     rowId = insertInsideTx(entity, stmt);
  5.   } else {
  6.     // Do TX to acquire a connection before locking the stmt to avoid deadlocks
  7.     db.beginTransaction();
  8.     try {
  9.       rowId = insertInsideTx(entity, stmt);
  10.       db.setTransactionSuccessful();
  11.     } finally {
  12.       db.endTransaction();
  13.     }
  14.   }
  15.   if (setKeyAndAttach) {
  16.     updateKeyAfterInsertAndAttach(entity, rowId, true);
  17.   }
  18.   return rowId;
  19. }

代码示例来源：origin: org.greenrobot/greendao

  1. /** Deletes an entity with the given PK from the database. Currently, only single value PK entities are supported. */
  2. public void deleteByKey(K key) {
  3.   assertSinglePk();
  4.   DatabaseStatement stmt = statements.getDeleteStatement();
  5.   if (db.isDbLockedByCurrentThread()) {
  6.     synchronized (stmt) {
  7.       deleteByKeyInsideSynchronized(key, stmt);
  8.     }
  9.   } else {
  10.     // Do TX to acquire a connection before locking the stmt to avoid deadlocks
  11.     db.beginTransaction();
  12.     try {
  13.       synchronized (stmt) {
  14.         deleteByKeyInsideSynchronized(key, stmt);
  15.       }
  16.       db.setTransactionSuccessful();
  17.     } finally {
  18.       db.endTransaction();
  19.     }
  20.   }
  21.   if (identityScope != null) {
  22.     identityScope.remove(key);
  23.   }
  24. }

代码示例来源：origin: org.greenrobot/greendao

  1. /**
  2.  * Deletes all matching entities without detaching them from the identity scope (aka session/cache). Note that this
  3.  * method may lead to stale entity objects in the session cache. Stale entities may be returned when loaded by
  4.  * their
  5.  * primary key, but not using queries.
  6.  */
  7. public void executeDeleteWithoutDetachingEntities() {
  8.   checkThread();
  9.   Database db = dao.getDatabase();
  10.   if (db.isDbLockedByCurrentThread()) {
  11.     dao.getDatabase().execSQL(sql, parameters);
  12.   } else {
  13.     // Do TX to acquire a connection before locking this to avoid deadlocks
  14.     // Locking order as described in AbstractDao
  15.     db.beginTransaction();
  16.     try {
  17.       dao.getDatabase().execSQL(sql, parameters);
  18.       db.setTransactionSuccessful();
  19.     } finally {
  20.       db.endTransaction();
  21.     }
  22.   }
  23. }

代码示例来源：origin: org.greenrobot/greendao

  1. public void update(T entity) {
  2.   assertSinglePk();
  3.   DatabaseStatement stmt = statements.getUpdateStatement();
  4.   if (db.isDbLockedByCurrentThread()) {
  5.     synchronized (stmt) {
  6.       if (isStandardSQLite) {
  7.         updateInsideSynchronized(entity, (SQLiteStatement) stmt.getRawStatement(), true);
  8.       } else {
  9.         updateInsideSynchronized(entity, stmt, true);
  10.       }
  11.     }
  12.   } else {
  13.     // Do TX to acquire a connection before locking the stmt to avoid deadlocks
  14.     db.beginTransaction();
  15.     try {
  16.       synchronized (stmt) {
  17.         updateInsideSynchronized(entity, stmt, true);
  18.       }
  19.       db.setTransactionSuccessful();
  20.     } finally {
  21.       db.endTransaction();
  22.     }
  23.   }
  24. }

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