Module org.postgresql.pljava.internal

Package org.postgresql.pljava.internal

Class VarlenaWrapper.Input

java.lang.Object

org.postgresql.pljava.pg.DatumImpl.Input

org.postgresql.pljava.internal.VarlenaWrapper.Input

All Implemented Interfaces:

Closeable, AutoCloseable, Datum, Datum.Input<DatumImpl.IStream>, VarlenaWrapper, DatumImpl

Enclosing interface:

VarlenaWrapper

public static class VarlenaWrapper.Input
extends DatumImpl.Input
implements VarlenaWrapper

A class by which Java reads the content of a varlena. Associated with a ResourceOwner to bound the lifetime of the native reference; the chosen resource owner must be one that will be released no later than the memory context containing the varlena.

Nested Class Summary

Nested classes/interfaces inherited from interface org.postgresql.pljava.adt.spi.Datum

Datum.Accessor<B,L extends Datum.Layout>, Datum.Input<T extends InputStream & Datum>, Datum.Layout

Nested classes/interfaces inherited from interface org.postgresql.pljava.pg.DatumImpl

DatumImpl.Input, DatumImpl.IStream<T extends DatumImpl.Input>

Nested classes/interfaces inherited from interface org.postgresql.pljava.internal.VarlenaWrapper

VarlenaWrapper.Input, VarlenaWrapper.Output, VarlenaWrapper.Verifier

Method Summary

Modifier and Type	Method	Description
long	adopt()	Dissociate the datum from Java and return its address to native code.
ByteBuffer	buffer()
void	close()
void	pin()
boolean	pinUnlessReleased()
String	toString()
String	toString(Object o)	Return a string describing this object in a way useful for debugging, prefixed with the name (abbreviated for comfort) of the class of the object passed in (the normal Java toString() method should pass this).
void	unpin()

Methods inherited from class org.postgresql.pljava.pg.DatumImpl.Input

inputStream, verify

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.postgresql.pljava.pg.DatumImpl

verify, verify

Method Details

pin

public void pin()
         throws SQLException

Specified by:

pin in interface Datum.Input<DatumImpl.IStream>

Throws:

SQLException

pinUnlessReleased

public boolean pinUnlessReleased()

Specified by:

pinUnlessReleased in interface Datum.Input<DatumImpl.IStream>

unpin

public void unpin()

Specified by:

unpin in interface Datum.Input<DatumImpl.IStream>

buffer

public ByteBuffer buffer()
                  throws SQLException

Specified by:

buffer in interface Datum.Input<DatumImpl.IStream>

Throws:

SQLException

close

public void close()
           throws IOException

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Closeable

Throws:

IOException

toString

public String toString()

Overrides:

toString in class DatumImpl.Input

toString

public String toString(Object o)

Description copied from interface: VarlenaWrapper

Return a string describing this object in a way useful for debugging, prefixed with the name (abbreviated for comfort) of the class of the object passed in (the normal Java toString() method should pass this).

Subclasses or consumers are encouraged to call this method and append further details specific to the subclass or consumer. The convention should be that the recursion will stop at some class that will actually construct the abbreviated class name of o and use it to prefix the returned value.

Specified by:

toString in interface DatumImpl

Specified by:

toString in interface VarlenaWrapper

Parameters:

o - An object whose class name (possibly abbreviated) should be used to prefix the returned string.

Returns:

Description of this object.

adopt

public long adopt()
           throws SQLException

Description copied from interface: DatumImpl

Dissociate the datum from Java and return its address to native code.

Specified by:

adopt in interface DatumImpl

Throws:

SQLException