org.postgresql.jdbc

Class ArrayEncoding.FixedSizePrimitiveArrayEncoder<A>

java.lang.Object

org.postgresql.jdbc.ArrayEncoding.AbstractArrayEncoder<A>

org.postgresql.jdbc.ArrayEncoding.FixedSizePrimitiveArrayEncoder<A>

Type Parameters:

A - The primitive array to support.

All Implemented Interfaces:

ArrayEncoding.ArrayEncoder<A>

Enclosing class:

ArrayEncoding

private abstract static class ArrayEncoding.FixedSizePrimitiveArrayEncoder<A>
extends ArrayEncoding.AbstractArrayEncoder<A>

Base support for primitive arrays.

Field Summary

Fields

Modifier and Type	Field and Description
private int	fieldSize

Fields inherited from class org.postgresql.jdbc.ArrayEncoding.AbstractArrayEncoder

arrayOid

Constructor Summary

Constructors

Constructor and Description
FixedSizePrimitiveArrayEncoder(int fieldSize, int oid, int arrayOid)

Method Summary

Modifier and Type	Method and Description
(package private) int	countNulls(A array) Counts the number of null elements in array.
byte[]	toBinaryRepresentation(BaseConnection connection, A array, int oid)
(package private) byte[]	toSingleDimensionBinaryRepresentation(BaseConnection connection, A array) Creates byte[] of just the raw data (no metadata).
protected abstract void	write(A array, byte[] bytes, int offset) Write the entire contents of array to bytes starting at offset without metadata describing type or length.

Methods inherited from class org.postgresql.jdbc.ArrayEncoding.AbstractArrayEncoder

getDefaultArrayTypeOid, getTypeOID, supportBinaryRepresentation, toArrayString

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.postgresql.jdbc.ArrayEncoding.ArrayEncoder

appendArray

Field Detail

fieldSize

private final int fieldSize

Constructor Detail

FixedSizePrimitiveArrayEncoder

FixedSizePrimitiveArrayEncoder(int fieldSize,
                               int oid,
                               int arrayOid)

Method Detail

countNulls

final int countNulls(A array)

Counts the number of null elements in array.

Always returns 0.

Overrides:

countNulls in class ArrayEncoding.AbstractArrayEncoder<A>

Parameters:

array - The array to count null elements in.

Returns:

The number of null elements in array.

toBinaryRepresentation

public final byte[] toBinaryRepresentation(BaseConnection connection,
                                           A array,
                                           int oid)
                                    throws java.sql.SQLException,
                                           java.sql.SQLFeatureNotSupportedException

Throws:

java.sql.SQLException

java.sql.SQLFeatureNotSupportedException

toSingleDimensionBinaryRepresentation

final byte[] toSingleDimensionBinaryRepresentation(BaseConnection connection,
                                                   A array)
                                            throws java.sql.SQLException,
                                                   java.sql.SQLFeatureNotSupportedException

Creates byte[] of just the raw data (no metadata).

Specified by:

toSingleDimensionBinaryRepresentation in class ArrayEncoding.AbstractArrayEncoder<A>

Parameters:

connection - The connection the binary representation will be used on.

array - The array to create binary representation of. Will not be null, but may contain null elements.

Returns:

byte[] of just the raw data (no metadata).

Throws:

java.sql.SQLFeatureNotSupportedException - If ArrayEncoding.AbstractArrayEncoder.supportBinaryRepresentation(int) is false for oid.

java.sql.SQLException

write

protected abstract void write(A array,
                              byte[] bytes,
                              int offset)

Write the entire contents of array to bytes starting at offset without metadata describing type or length.

Parameters:

array - The array to write.

bytes - The byte[] to write to.

offset - The offset into bytes to start writing.