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java.lang.Objectorg.apache.openjpa.slice.jdbc.UniqueResultObjectProvider
public class UniqueResultObjectProvider
Aggregates individual single query results from different databases.
Constructor Summary | |
---|---|
UniqueResultObjectProvider(ResultObjectProvider[] rops,
StoreQuery q,
QueryExpressions[] exps)
|
Method Summary | |
---|---|
boolean |
absolute(int pos)
Move to the given 0-based position. |
void |
close()
Free the resources associated with this provider. |
Object |
getResultObject()
Instantiate the current result object. |
void |
handleCheckedException(Exception e)
Any checked exceptions that are thrown will be passed to this method. |
boolean |
next()
Advance the input to the next position. |
void |
open()
Open the result. |
void |
reset()
Reset this provider. |
int |
size()
Return the number of items in the input, or Integer.MAX_VALUE
if the size in unknown. |
boolean |
supportsRandomAccess()
Return true if this provider supports random access. |
Methods inherited from class java.lang.Object |
---|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public UniqueResultObjectProvider(ResultObjectProvider[] rops, StoreQuery q, QueryExpressions[] exps)
Method Detail |
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public boolean absolute(int pos) throws Exception
ResultObjectProvider
true
if there is data at this position;
otherwise false
. This may be invoked in place of
ResultObjectProvider.next()
.
absolute
in interface ResultObjectProvider
Exception
public void close() throws Exception
ResultObjectProvider
close
in interface ResultObjectProvider
close
in interface Closeable
Exception
public Object getResultObject() throws Exception
ResultObjectProvider
ResultObjectProvider.next()
or ResultObjectProvider.absolute(int)
.
getResultObject
in interface ResultObjectProvider
Exception
public void handleCheckedException(Exception e)
ResultObjectProvider
handleCheckedException
in interface ResultObjectProvider
public boolean next() throws Exception
ResultObjectProvider
true
if
there is more data; otherwise false
.
next
in interface ResultObjectProvider
Exception
public void open() throws Exception
ResultObjectProvider
ResultObjectProvider.next()
, ResultObjectProvider.absolute(int)
, or ResultObjectProvider.size()
.
open
in interface ResultObjectProvider
Exception
public void reset() throws Exception
ResultObjectProvider
reset
in interface ResultObjectProvider
Exception
public int size() throws Exception
ResultObjectProvider
Integer.MAX_VALUE
if the size in unknown.
size
in interface ResultObjectProvider
Exception
public boolean supportsRandomAccess()
ResultObjectProvider
supportsRandomAccess
in interface ResultObjectProvider
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This documentation is deprecated and will be removed in the next release of WebLogic Server.