com.sleepycat.db
Class MultipleDataEntry

java.lang.Object
  com.sleepycat.db.DatabaseEntry
      com.sleepycat.db.MultipleEntry
          com.sleepycat.db.MultipleDataEntry

public class MultipleDataEntry

extends MultipleEntry

A DatabaseEntry that holds multiple data items returned by a single Database or Cursor get call.

Constructor Summary

MultipleDataEntry()
Construct an entry with no data.

MultipleDataEntry(byte[] data)
Construct an entry with a given byte array.

MultipleDataEntry(byte[] data, int offset, int size)
Constructs a DatabaseEntry with a given byte array, offset and size.

Method Summary

boolean

next(DatabaseEntry data) Get the next data element in the returned set.

Methods inherited from class com.sleepycat.db.MultipleEntry

setUserBuffer

Methods inherited from class com.sleepycat.db.DatabaseEntry

getData, getOffset, getPartial, getPartialLength, getPartialOffset, getRecordNumber, getReuseBuffer, getSize, getUserBuffer, getUserBufferLength, setData, setData, setOffset, setPartial, setPartial, setPartialLength, setPartialOffset, setRecordNumber, setReuseBuffer, setSize

Methods inherited from class java.lang.Object

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

Constructor Detail

MultipleDataEntry

public MultipleDataEntry()

Construct an entry with no data. The object must be configured before use with the MultipleEntry.setUserBuffer method.

MultipleDataEntry

public MultipleDataEntry(byte[] data)

Construct an entry with a given byte array. The offset is set to zero; the size is set to the length of the array. If null is passed, the object must be configured before use with the MultipleEntry.setUserBuffer method.

Parameters:

data - Byte array wrapped by the entry.

MultipleDataEntry

public MultipleDataEntry(byte[] data,
                         int offset,
                         int size)

Constructs a DatabaseEntry with a given byte array, offset and size.

Parameters:

data - Byte array wrapped by the DatabaseEntry.

offset - Offset in the first byte in the byte array to be included.

size - Number of bytes in the byte array to be included.

Method Detail

next

public boolean next(DatabaseEntry data)

Get the next data element in the returned set. This method may only be called after a successful call to a Database or Cursor get method with this object as the data parameter.

When used with the Queue and Recno access methods, data.getData() will return null for deleted records.

Parameters:

data - an entry that is set to refer to the next data element in the returned set.

Returns:

indicates whether a value was found. A return of false indicates that the end of the set was reached.