Java Doc for B2IRowLocking2.java in  » Database-DBMS » db-derby-10.2 » org » apache » derby » impl » store » access » btree » index » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Database DBMS » db derby 10.2 » org.apache.derby.impl.store.access.btree.index   Source Cross Reference   Class Diagram   Java Document (Java Doc)   java.lang.Object    org.apache.derby.impl.store.access.btree.index.B2IRowLocking3       org.apache.derby.impl.store.access.btree.index.B2IRowLockingRR          org.apache.derby.impl.store.access.btree.index.B2IRowLocking2 All known Subclasses:   org.apache.derby.impl.store.access.btree.index.B2IRowLocking1, B2IRowLocking2 class B2IRowLocking2 extends B2IRowLockingRR implements BTreeLockingPolicy(Code) The btree locking policy which implements read committed isolation level. It inherits all functionality from B2IRowLockingRR (repeatable read) except that it releases read locks after obtaining them. It provides a single implementation of unlockScanRecordAfterRead() which releases a read lock after it has been locked and processed. Constructor Summary   B2IRowLocking2(Transaction rawtran, int lock_level, LockingPolicy locking_policy, ConglomerateController base_cc, OpenBTree open_btree)      Method Summary public  void unlockScanRecordAfterRead(BTreeRowPosition pos, boolean forUpdate)      Release read lock on a row. Constructor Detail B2IRowLocking2 B2IRowLocking2(Transaction rawtran, int lock_level, LockingPolicy locking_policy, ConglomerateController base_cc, OpenBTree open_btree)(Code) Constructors for This class: Method Detail unlockScanRecordAfterRead public void unlockScanRecordAfterRead(BTreeRowPosition pos, boolean forUpdate) throws StandardException(Code) Release read lock on a row. Parameters:   forUpdate - Is the scan for update or for read only. Methods inherited from org.apache.derby.impl.store.access.btree.index.B2IRowLockingRR public boolean lockScanRow(OpenBTree open_btree, BTree btree, BTreeRowPosition pos, boolean request_scan_lock, FetchDescriptor lock_fetch_desc, DataValueDescriptor[] lock_template, RowLocation lock_row_loc, boolean previous_key_lock, boolean forUpdate, int lock_operation) throws StandardException(Code)(Java Doc) public void unlockScanRecordAfterRead(BTreeRowPosition pos, boolean forUpdate) throws StandardException(Code)(Java Doc) Fields inherited from org.apache.derby.impl.store.access.btree.index.B2IRowLocking3 protected ConglomerateController base_cc(Code)(Java Doc) protected OpenBTree open_btree(Code)(Java Doc) Methods inherited from org.apache.derby.impl.store.access.btree.index.B2IRowLocking3 protected boolean _lockScanRow(OpenBTree open_btree, BTree btree, BTreeRowPosition pos, boolean request_row_lock, boolean request_scan_lock, FetchDescriptor lock_fetch_desc, DataValueDescriptor[] lock_template, RowLocation lock_row_loc, boolean previous_key_lock, boolean forUpdate, int lock_operation) throws StandardException(Code)(Java Doc) public boolean lockNonScanPreviousRow(BTree btree, LeafControlRow current_leaf, int current_slot, FetchDescriptor lock_fetch_desc, DataValueDescriptor[] lock_template, RowLocation lock_row_loc, OpenBTree open_btree, int lock_operation, int lock_duration) throws StandardException(Code)(Java Doc) public boolean lockNonScanRow(BTree btree, LeafControlRow current_leaf, LeafControlRow aux_leaf, DataValueDescriptor[] current_row, int lock_operation) throws StandardException(Code)(Java Doc) public boolean lockNonScanRowOnPage(BTree btree, LeafControlRow current_leaf, int current_slot, FetchDescriptor lock_fetch_desc, DataValueDescriptor[] lock_template, RowLocation lock_row_loc, int lock_operation) throws StandardException(Code)(Java Doc) public boolean lockScan(LeafControlRow current_leaf, ControlRow aux_control_row, boolean forUpdate, int lock_operation) throws StandardException(Code)(Java Doc) public boolean lockScanCommittedDeletedRow(OpenBTree open_btree, LeafControlRow leaf, DataValueDescriptor[] template, FetchDescriptor lock_fetch_desc, int slot_no) throws StandardException(Code)(Java Doc) public boolean lockScanForReclaimSpace(LeafControlRow current_leaf) throws StandardException(Code)(Java Doc) public boolean lockScanRow(OpenBTree open_btree, BTree btree, BTreeRowPosition pos, boolean request_scan_lock, FetchDescriptor lock_fetch_desc, DataValueDescriptor[] lock_template, RowLocation lock_row_loc, boolean previous_key_lock, boolean forUpdate, int lock_operation) throws StandardException(Code)(Java Doc) public void unlockScan(long page_number)(Code)(Java Doc) public void unlockScanRecordAfterRead(BTreeRowPosition pos, boolean forUpdate) throws StandardException(Code)(Java Doc) Methods inherited from java.lang.Object native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc) public boolean equals(Object obj)(Code)(Java Doc) protected void finalize() throws Throwable(Code)(Java Doc) final native public Class getClass()(Code)(Java Doc) native public int hashCode()(Code)(Java Doc) final native public void notify()(Code)(Java Doc) final native public void notifyAll()(Code)(Java Doc) public String toString()(Code)(Java Doc) final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc) final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc) final public void wait() throws InterruptedException(Code)(Java Doc)