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/*
Derby - Class org.apache.derbyTesting.functionTests.tests.lang.Price
Licensed to the Apache Software Foundation (ASF) under one or more
contributor license agreements. See the NOTICE file distributed with
this work for additional information regarding copyright ownership.
The ASF licenses this file to you under the Apache License, Version 2.0
(the "License"); you may not use this file except in compliance with
the License. You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package org.apache.derbyTesting.functionTests.tests.lang;
import java.io.Externalizable;
import java.io.IOException;
import java.io.ObjectInput;
import java.io.ObjectOutput;
import java.math.BigDecimal;
import java.sql.Timestamp;
/**
* Sample UDT for tests.
*/
public class Price implements Externalizable
{
// this changed between 10.9 and 10.10 so require the 10.9 value
private static final long serialVersionUID = 102726277789621992L;
// initial version id
private static final int FIRST_VERSION = 0;
private static final int TIMESTAMPED_VERSION = FIRST_VERSION + 1;
private static final Timestamp DEFAULT_TIMESTAMP = new Timestamp( 0L );
private static Price _savedPrice;
public String currencyCode;
public BigDecimal amount;
public Timestamp timeInstant;
// methods to be registered as functions
public static Price makePrice( ) { return makePrice( BigDecimal.valueOf(1L) ); }
public static Price makePrice( BigDecimal cost ) { return new Price( "USD", cost, DEFAULT_TIMESTAMP ); }
public static Price makePrice( String currencyCode, BigDecimal amount, Timestamp timeInstant ) { return new Price( currencyCode, amount, timeInstant ); }
public static String getCurrencyCode( Price price ) { return price.currencyCode; }
public static BigDecimal getAmount( Price price ) { return price.amount; }
public static Timestamp getTimeInstant( Price price ) { return price.timeInstant; }
public static void savePrice( Price price ) { _savedPrice = price; }
public static Price getSavedPrice() { return _savedPrice; }
// 0-arg constructor needed by Externalizable machinery
public Price() {}
public Price( String currencyCode, BigDecimal amount, Timestamp timeInstant )
{
this.currencyCode = currencyCode;
this.amount = amount;
this.timeInstant = timeInstant;
}
public String toString()
{
StringBuffer buffer = new StringBuffer();
buffer.append( "Price( " + currencyCode + ", " + amount + ", " );
if ( DEFAULT_TIMESTAMP.equals( timeInstant ) ) { buffer.append( "XXX" ); }
else { buffer.append( timeInstant ); }
buffer.append( " )" );
return buffer.toString();
}
public boolean equals( Object other )
{
if ( other == null ) { return false; }
if ( !(other instanceof Price) ) { return false; }
Price that = (Price) other;
return this.toString().equals( that.toString() );
}
// Externalizable implementation
public void writeExternal(ObjectOutput out) throws IOException
{
// first write the version id
out.writeInt( TIMESTAMPED_VERSION );
// now write the state
out.writeObject( currencyCode );
out.writeObject( amount );
out.writeObject( timeInstant );
}
public void readExternal(ObjectInput in)throws IOException, ClassNotFoundException
{
// read the version id
int oldVersion = in.readInt();
if ( oldVersion < FIRST_VERSION ) { throw new IOException( "Corrupt data stream." ); }
if ( oldVersion > TIMESTAMPED_VERSION ) { throw new IOException( "Can't deserialize from the future." ); }
currencyCode = (String) in.readObject();
amount = (BigDecimal) in.readObject();
if ( oldVersion >= TIMESTAMPED_VERSION ) { timeInstant = (Timestamp) in.readObject(); }
else { timeInstant = DEFAULT_TIMESTAMP; }
}
}
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