PROBLEM: Function does not exist

Hello,

I have problem that I can't to call function because postgres can't to find
this function with specified parameters and I receive following error:

Caused by: java.sql.SQLException: ERROR: function update_bf_domain(integer, character varying,
character varying, timestamp with time zone) does not exist

Here is my definition:

Table definition:
-----------------
CREATE TYPE type_int_timestamp AS (intgr INTEGER, tmstp TIMESTAMP);

CREATE TABLE BF_DOMAIN
(
ID SERIAL,
NAME VARCHAR(100) NOT NULL,
DESCRIPTION VARCHAR(1024) NULL,
CREATION_DATE TIMESTAMP NOT NULL,
MODIFICATION_DATE TIMESTAMP NOT NULL,
CONSTRAINT BF_DOM_UQ UNIQUE (NAME),
CONSTRAINT BF_DOM_PK PRIMARY KEY (ID)
);

Function for update:
--------------------
CREATE OR REPLACE FUNCTION UPDATE_BF_DOMAIN
(
INTEGER,
VARCHAR(100),
VARCHAR(1024),
TIMESTAMP
) RETURNS type_int_timestamp AS '
DECLARE
in_domain_id ALIAS FOR $1;
in_name ALIAS FOR $2;
in_description ALIAS FOR $3;
in_modification_date ALIAS FOR $4;
out_updated_count INTEGER;
out_timestamp TIMESTAMP;
output_result type_int_timestamp;
BEGIN
SELECT INTO out_timestamp now();
UPDATE BF_DOMAIN SET NAME = in_name, DESCRIPTION = in_description,
MODIFICATION_DATE = out_timestamp WHERE ID = in_domain_id
AND MODIFICATION_DATE = in_modification_date;

GET DIAGNOSTICS out_updated_count = ROW_COUNT;
output_result.intgr := out_updated_count;
output_result.tmstp := out_timestamp;
RETURN output_result;
END;
' LANGUAGE 'plpgsql';

========================================
I call update function (from java) as following:

updateStatement = dbConnection.prepareStatement(
"select INTGR, TMSTP from UPDATE_BF_DOMAIN (?, ?, ?, ?)");
updateStatement.setInt(1, data.getId());
updateStatement.setString(2, data.getName());
updateStatement.setString(3, data.getDescription());
updateStatement.setTimestamp(4, data.getModificationTimestamp());

rsResults = updateStatement.executeQuery();
if (rsResults.next())
{
iUpdateCount = rsResults.getInt(1);
tmTimestamp = rsResults.getTimestamp(2);
}

========================================

Can you help me please what I doing wrong and how can I solve this problem?

Thank you in advance,
with best regards,

Julian Legeny

mailto:juleni(at)livetrade(dot)cz