com.ceph.rados

Class ReadOp

java.lang.Object

com.ceph.rados.RadosBase

com.ceph.rados.ReadOp

All Implemented Interfaces:

AutoCloseable

public class ReadOp
extends RadosBase
implements AutoCloseable

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	ReadOp.ReadResult

Method Summary

Modifier and Type	Method and Description
void	close()
void	operate(String oid, int flags) Executes operations added to the rados_read_op_t.
ReadOp.ReadResult	queueRead(long offset, long len) Add a read operation to the rados_read_op_t via rados_read_op_read.

Methods inherited from class com.ceph.rados.RadosBase

handleReturnCode, throwException

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

queueRead

public ReadOp.ReadResult queueRead(long offset,
                                   long len)
                            throws RadosException

Add a read operation to the rados_read_op_t via rados_read_op_read. Note returned ReadResult is not populated until after the operate() call.

Parameters:

offset - starting offset into the object

len - length of the read

Returns:

Java object which will hold results of the requested read after operate() is called

Throws:

RadosException

operate

public void operate(String oid,
                    int flags)
             throws RadosException

Executes operations added to the rados_read_op_t.

Parameters:

oid - the name of the object to operate on

flags - the flags for the operation

Throws:

RadosException

See Also:

operation flags

close

public void close()

Specified by:

close in interface AutoCloseable