- /*
- * @(#)SerialRef.java 1.7 04/05/29
- *
- * Copyright 2004 Sun Microsystems, Inc. All rights reserved.
- * SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
- */
-
- package javax.sql.rowset.serial;
-
- import java.sql.*;
- import java.io.*;
- import java.util.*;
-
- /**
- * A serialized mapping of a <code>Ref</code> object, which is the mapping in the
- * Java programming language of an SQL <code>REF</code> value.
- * <p>
- * The <code>SerialRef</code> class provides a constructor for
- * creating a <code>SerialRef</code> instance from a <code>Ref</code>
- * object and provides methods for getting and setting the <code>Ref</code> object.
- */
- public class SerialRef implements Ref, Serializable, Cloneable {
-
- /**
- * String containing the base type name.
- * @serial
- */
- private String baseTypeName;
-
- /**
- * This will store the type <code>Ref</code> as an <code>Object</code>.
- */
- private Object object;
-
- /**
- * Private copy of the Ref reference.
- */
- private Ref reference;
-
- /**
- * Constructs a <code>SerialRef</code> object from the given <code>Ref</code>
- * object.
- *
- * @param ref a Ref object; cannot be <code>null</code>
- * @throws SQLException if a database access occurs; if <code>ref</code>
- * is <code>null</code> or if the <code>Ref</code> object returns a
- * <code>null</code> value base type name.
- * @throws SerialException if an error occurs serializing the <code>Ref</code>
- * object
- */
- public SerialRef(Ref ref) throws SerialException, SQLException {
- if (ref == null) {
- throw new SQLException("Cannot instantiate a SerialRef object " +
- "with a null Ref object");
- }
- reference = ref;
- object = ref;
- if (ref.getBaseTypeName() == null) {
- throw new SQLException("Cannot instantiate a SerialRef object " +
- "that returns a null base type name");
- } else {
- baseTypeName = new String(ref.getBaseTypeName());
- }
- }
-
- /**
- * Returns a string describing the base type name of the <code>Ref</code>.
- *
- * @return a string of the base type name of the Ref
- * @throws SerialException in no Ref object has been set
- */
- public String getBaseTypeName() throws SerialException {
- return baseTypeName;
- }
-
- /**
- * Returns an <code>Object</code> representing the SQL structured type
- * to which this <code>SerialRef</code> object refers. The attributes
- * of the structured type are mapped according to the given type map.
- *
- * @param map a <code>java.util.Map</code> object containing zero or
- * more entries, with each entry consisting of 1) a <code>String</code>
- * giving the fully qualified name of a UDT and 2) the
- * <code>Class</code> object for the <code>SQLData</code> implementation
- * that defines how the UDT is to be mapped
- * @return an object instance resolved from the Ref reference and mapped
- * according to the supplied type map
- * @throws SerialException if an error is encountered in the reference
- * resolution
- */
- public Object getObject(java.util.Map<String,Class<?>> map)
- throws SerialException
- {
- map = new Hashtable(map);
- if (!object.equals(null)) {
- return map.get(object);
- } else {
- throw new SerialException("The object is not set");
- }
- }
-
- /**
- * Returns an <code>Object</code> representing the SQL structured type
- * to which this <code>SerialRef</code> object refers.
- *
- * @return an object instance resolved from the Ref reference
- * @throws SerialException if an error is encountered in the reference
- * resolution
- */
- public Object getObject() throws SerialException {
-
- if (reference != null) {
- try {
- return reference.getObject();
- } catch (SQLException e) {
- throw new SerialException("SQLException: " + e.getMessage());
- }
- }
-
- if (object != null) {
- return object;
- }
-
-
- throw new SerialException("The object is not set");
-
- }
-
- /**
- * Sets the SQL structured type that this <code>SerialRef</code> object
- * references to the given <code>Object</code> object.
- *
- * @param obj an <code>Object</code> representing the SQL structured type
- * to be referenced
- * @throws SerialException if an error is encountered generating the
- * the structured type referenced by this <code>SerialRef</code> object
- */
- public void setObject(Object obj) throws SerialException {
- try {
- reference.setObject(obj);
- } catch (SQLException e) {
- throw new SerialException("SQLException: " + e.getMessage());
- }
- object = obj;
- }
-
- /**
- * The identifier that assists in the serialization of this <code>SerialRef</code>
- * object.
- */
- static final long serialVersionUID = -4727123500609662274L;
-
-
- }
-
-
-