public SQLInputImpl(Object[] attributes,
    Map map) throws SQLException 
{
        if ((attributes == null) || (map == null)) {
            throw new SQLException("Cannot instantiate a SQLInputImpl " +
            "object with null parameters");
        }
        // assign our local reference to the attribute stream
        attrib = attributes;
        // init the index point before the head of the stream
        idx = -1;
        // set the map
        this.map = map;
}

Creates an SQLInputImpl object initialized with the given array of attributes and the given type map. If any of the attributes is a UDT whose name is in an entry in the type map, the attribute will be mapped according to the corresponding SQLData implementation.

Parameters:

attributes - an array of Object instances in which each element is an attribute of a UDT. The order of the attributes in the array is the same order in which the attributes were defined in the UDT definition.

map - a java.util.Map object containing zero or more entries, with each entry consisting of 1) a String giving the fully qualified name of the UDT and 2) the Class object for the SQLData implementation that defines how the UDT is to be mapped

Throws:

SQLException - if the attributes or the map is a null value

 public Array readArray() throws SQLException 
{
        Array attrib = (Array)getNextAttribute();
        if (attrib == null) {
            lastValueWasNull = true;
            return null;
        } else {
            lastValueWasNull = false;
            return attrib;
        }
}

Reads an SQL ARRAY value from the stream and returns it as an Array object in the Java programming language.

This method does not perform type-safe checking to determine if the returned type is the expected type as this responsibility is delegated to the UDT mapping as implemented by a SQLData implementation.

 public InputStream readAsciiStream() throws SQLException 
{
        java.io.InputStream attrib = (java.io.InputStream)getNextAttribute();
        if (attrib == null) {
            lastValueWasNull = true;
            return null;
        } else {
            lastValueWasNull = false;
            return attrib;
        }
}

Returns the next attribute in this SQLInputImpl object as a stream of ASCII characters.

This method does not perform type-safe checking to determine if the returned type is the expected type as this responsibility is delegated to the UDT mapping as implemented by a SQLData implementation.

 public BigDecimal readBigDecimal() throws SQLException 
{
        java.math.BigDecimal attrib = (java.math.BigDecimal)getNextAttribute();
        if (attrib == null) {
            lastValueWasNull = true;
            return null;
        } else {
            lastValueWasNull = false;
            return attrib;
        }
}

Retrieves the next attribute in this SQLInputImpl object as a java.math.BigDecimal.

This method does not perform type-safe checking to determine if the returned type is the expected type; this responsibility is delegated to the UDT mapping as defined by a SQLData implementation.

 public InputStream readBinaryStream() throws SQLException 
{
        java.io.InputStream attrib = (java.io.InputStream)getNextAttribute();
        if (attrib == null) {
            lastValueWasNull = true;
            return null;
        } else {
            lastValueWasNull = false;
            return attrib;
        }
}

Returns the next attribute in this SQLInputImpl object as a stream of uninterpreted bytes.

This method does not perform type-safe checking to determine if the returned type is the expected type as this responsibility is delegated to the UDT mapping as implemented by a SQLData implementation.

 public Blob readBlob() throws SQLException 
{
        Blob attrib = (Blob)getNextAttribute();
        if (attrib == null) {
            lastValueWasNull = true;
            return null;
        } else {
            lastValueWasNull = false;
            return attrib;
        }
}

Retrieves the BLOB value at the head of this SQLInputImpl object as a Blob object in the Java programming language.

This method does not perform type-safe checking to determine if the returned type is the expected type as this responsibility is delegated to the UDT mapping as implemented by a SQLData implementation.

 public boolean readBoolean() throws SQLException 
{
        Boolean attrib = (Boolean)getNextAttribute();
        if (attrib == null) {
            lastValueWasNull = true;
            return false;
        } else {
            lastValueWasNull = false;
            return attrib.booleanValue();
        }
}

Retrieves the next attribute in this SQLInputImpl object as a boolean in the Java programming language.

This method does not perform type-safe checking to determine if the returned type is the expected type; this responsibility is delegated to the UDT mapping as defined by a SQLData implementation.

 public byte readByte() throws SQLException 
{
        Byte attrib = (Byte)getNextAttribute();
        if (attrib == null) {
            lastValueWasNull = true;
            return (byte)0;
        } else {
            lastValueWasNull = false;
            return attrib.byteValue();
        }
}

Retrieves the next attribute in this SQLInputImpl object as a byte in the Java programming language.

This method does not perform type-safe checking to determine if the returned type is the expected type; this responsibility is delegated to the UDT mapping as defined by a SQLData implementation.

 public byte[] readBytes() throws SQLException 
{
        byte[] attrib = (byte[])getNextAttribute();
        if (attrib == null) {
            lastValueWasNull = true;
            return null;
        } else {
            lastValueWasNull = false;
            return attrib;
        }
}

Retrieves the next attribute in this SQLInputImpl object as an array of bytes.

This method does not perform type-safe checking to determine if the returned type is the expected type; this responsibility is delegated to the UDT mapping as defined by a SQLData implementation.

 public Reader readCharacterStream() throws SQLException 
{
        java.io.Reader attrib = (java.io.Reader)getNextAttribute();
        if (attrib == null) {
            lastValueWasNull = true;
            return null;
        } else {
            lastValueWasNull = false;
            return attrib;
        }
}

Retrieves the next attribute in this SQLInputImpl object as a stream of Unicode characters.

This method does not perform type-safe checking to determine if the returned type is the expected type as this responsibility is delegated to the UDT mapping as implemented by a SQLData implementation.

 public Clob readClob() throws SQLException 
{
        Clob attrib = (Clob)getNextAttribute();
        if (attrib == null) {
            lastValueWasNull = true;
            return null;
        } else {
            lastValueWasNull = false;
            return attrib;
        }
}

Retrieves the CLOB value at the head of this SQLInputImpl object as a Clob object in the Java programming language.

This method does not perform type-safe checking to determine if the returned type is the expected type as this responsibility is delegated to the UDT mapping as implemented by a SQLData implementation.

 public Date readDate() throws SQLException 
{
        java.sql.Date attrib = (java.sql.Date)getNextAttribute();
        if (attrib == null) {
            lastValueWasNull = true;
            return null;
        } else {
            lastValueWasNull = false;
            return attrib;
        }
}

Retrieves the next attribute in this SQLInputImpl as a java.sql.Date object.

This method does not perform type-safe checking to determine if the returned type is the expected type; this responsibility is delegated to the UDT mapping as defined by a SQLData implementation.

 public double readDouble() throws SQLException 
{
        Double attrib = (Double)getNextAttribute();
        if (attrib == null) {
            lastValueWasNull = true;
            return (double)0;
        } else {
            lastValueWasNull = false;
            return attrib.doubleValue();
        }
}

Retrieves the next attribute in this SQLInputImpl object as a double in the Java programming language.

This method does not perform type-safe checking to determine if the returned type is the expected type; this responsibility is delegated to the UDT mapping as defined by a SQLData implementation.

 public float readFloat() throws SQLException 
{
        Float attrib = (Float)getNextAttribute();
        if (attrib == null) {
            lastValueWasNull = true;
            return (float)0;
        } else {
            lastValueWasNull = false;
            return attrib.floatValue();
        }
}

Retrieves the next attribute in this SQLInputImpl object as a float in the Java programming language.

This method does not perform type-safe checking to determine if the returned type is the expected type; this responsibility is delegated to the UDT mapping as defined by a SQLData implementation.

 public int readInt() throws SQLException 
{
        Integer attrib = (Integer)getNextAttribute();
        if (attrib == null) {
            lastValueWasNull = true;
            return (int)0;
        } else {
            lastValueWasNull = false;
            return attrib.intValue();
        }
}

Retrieves the next attribute in this SQLInputImpl object as an int in the Java programming language.

This method does not perform type-safe checking to determine if the returned type is the expected type; this responsibility is delegated to the UDT mapping as defined by a SQLData implementation.

 public long readLong() throws SQLException 
{
        Long attrib = (Long)getNextAttribute();
        if (attrib == null) {
            lastValueWasNull = true;
            return (long)0;
        } else {
            lastValueWasNull = false;
            return attrib.longValue();
        }
}

Retrieves the next attribute in this SQLInputImpl object as a long in the Java programming language.

This method does not perform type-safe checking to determine if the returned type is the expected type; this responsibility is delegated to the UDT mapping as defined by a SQLData implementation.

 public NClob readNClob() throws SQLException 
{
        throw new UnsupportedOperationException("Operation not supported");
}

Reads an SQL NCLOB value from the stream and returns it as a Clob object in the Java programming language.

 public String readNString() throws SQLException 
{
        throw new UnsupportedOperationException("Operation not supported");
}

Reads the next attribute in the stream and returns it as a String in the Java programming language. It is intended for use when accessing NCHAR,NVARCHAR and LONGNVARCHAR columns.

 public Object readObject() throws SQLException 
{
        Object attrib = (Object)getNextAttribute();
        if (attrib == null) {
            lastValueWasNull = true;
            return null;
        } else {
            lastValueWasNull = false;
            if (attrib instanceof Struct) {
                Struct s = (Struct)attrib;
                // look up the class in the map
                Class c = (Class)map.get(s.getSQLTypeName());
                if (c != null) {
                    // create new instance of the class
                    SQLData obj = null;
                    try {
                        obj = (SQLData)c.newInstance();
                    } catch (java.lang.InstantiationException ex) {
                        throw new SQLException("Unable to instantiate: " +
                                               ex.getMessage());
                    } catch (java.lang.IllegalAccessException ex) {
                        throw new SQLException("Unable to instantiate: " +
                                               ex.getMessage());
                    }
                    // get the attributes from the struct
                    Object attribs[] = s.getAttributes(map);
                    // create the SQLInput "stream"
                    SQLInputImpl sqlInput = new SQLInputImpl(attribs, map);
                    // read the values...
                    obj.readSQL(sqlInput, s.getSQLTypeName());
                    return (Object)obj;
                }
            }
            return (Object)attrib;
        }
}

Retrieves the value at the head of this SQLInputImpl object as an Object in the Java programming language. The actual type of the object returned is determined by the default mapping of SQL types to types in the Java programming language unless there is a custom mapping, in which case the type of the object returned is determined by this stream's type map.

The JDBC technology-enabled driver registers a type map with the stream before passing the stream to the application.

When the datum at the head of the stream is an SQL NULL, this method returns null. If the datum is an SQL structured or distinct type with a custom mapping, this method determines the SQL type of the datum at the head of the stream, constructs an object of the appropriate class, and calls the method SQLData.readSQL on that object. The readSQL method then calls the appropriate SQLInputImpl.readXXX methods to retrieve the attribute values from the stream.

 public Ref readRef() throws SQLException 
{
        Ref attrib = (Ref)getNextAttribute();
        if (attrib == null) {
            lastValueWasNull = true;
            return null;
        } else {
            lastValueWasNull = false;
            return attrib;
        }
}

Retrieves the value at the head of this SQLInputImpl object as a Ref object in the Java programming language.

 public RowId readRowId() throws SQLException 
{
        throw new UnsupportedOperationException("Operation not supported");
}

Reads an SQL ROWID value from the stream and returns it as a RowId object in the Java programming language.

 public SQLXML readSQLXML() throws SQLException 
{
        throw new UnsupportedOperationException("Operation not supported");
}

Reads an SQL XML value from the stream and returns it as a SQLXML object in the Java programming language.

 public short readShort() throws SQLException 
{
        Short attrib = (Short)getNextAttribute();
        if (attrib == null) {
            lastValueWasNull = true;
            return (short)0;
        } else {
            lastValueWasNull = false;
            return attrib.shortValue();
        }
}

Retrieves the next attribute in this SQLInputImpl object as a short in the Java programming language.

This method does not perform type-safe checking to determine if the returned type is the expected type; this responsibility is delegated to the UDT mapping as defined by a SQLData implementation.

 public String readString() throws SQLException 
{
        String attrib = (String)getNextAttribute();
        if (attrib == null) {
            lastValueWasNull = true;
            return null;
        } else {
            lastValueWasNull = false;
            return attrib;
        }
}

Retrieves the next attribute in this SQLInputImpl object as a String in the Java programming language.

This method does not perform type-safe checking to determine if the returned type is the expected type; this responsibility is delegated to the UDT mapping as defined by a SQLData implementation.

 public Time readTime() throws SQLException 
{
        java.sql.Time attrib = (java.sql.Time)getNextAttribute();
        if (attrib == null) {
            lastValueWasNull = true;
            return null;
        } else {
            lastValueWasNull = false;
            return attrib;
        }
}

Retrieves the next attribute in this SQLInputImpl object as a java.sql.Time object.

This method does not perform type-safe checking to determine if the returned type is the expected type as this responsibility is delegated to the UDT mapping as implemented by a SQLData implementation.

 public Timestamp readTimestamp() throws SQLException 
{
        java.sql.Timestamp attrib = (java.sql.Timestamp)getNextAttribute();
        if (attrib == null) {
            lastValueWasNull = true;
            return null;
        } else {
            lastValueWasNull = false;
            return attrib;
        }
}

Retrieves the next attribute in this SQLInputImpl object as a java.sql.Timestamp object.

 public URL readURL() throws SQLException 
{
        throw new SQLException("Operation not supported");
}

Reads an SQL DATALINK value from the stream and returns it as an URL object in the Java programming language.

This method does not perform type-safe checking to determine if the returned type is the expected type as this responsibility is delegated to the UDT mapping as implemented by a SQLData implementation.

 public boolean wasNull() throws SQLException 
{
        return lastValueWasNull;
}

Ascertains whether the last value read from this SQLInputImpl object was null.