001 /** 002 * Licensed to the Apache Software Foundation (ASF) under one or more 003 * contributor license agreements. See the NOTICE file distributed with 004 * this work for additional information regarding copyright ownership. 005 * The ASF licenses this file to You under the Apache License, Version 2.0 006 * (the "License"); you may not use this file except in compliance with 007 * the License. You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 */ 017 package org.apache.geronimo.samples.daytrader.ejb; 018 019 020 import javax.ejb.*; 021 022 import org.apache.geronimo.samples.daytrader.util.*; 023 024 import java.util.Collection; 025 import org.apache.geronimo.samples.daytrader.*; 026 027 028 public abstract class KeyGenBean 029 implements EntityBean { 030 031 private EntityContext context; 032 033 /* Accessor methods for persistent fields */ 034 035 036 public abstract String getKeyName(); /* Unique Primary Key name */ 037 public abstract void setKeyName(String KeyName); 038 public abstract int getKeyVal(); /* Value for PK */ 039 public abstract void setKeyVal(int keyVal); 040 041 /* Accessor methods for relationship fields */ 042 043 /* Select methods */ 044 045 /* Business methods */ 046 047 public Collection allocBlockOfKeys() 048 { 049 int min = getKeyVal(); 050 int max = min+TradeConfig.KEYBLOCKSIZE; 051 setKeyVal(max); 052 return new KeyBlock(min, max-1); 053 } 054 055 /* Required javax.ejb.EntityBean interface methods */ 056 public String ejbCreate (String keyName) 057 throws CreateException { 058 059 setKeyName(keyName); 060 setKeyVal(0); 061 return null; 062 } 063 064 065 public void ejbPostCreate (String keyName) 066 throws CreateException { 067 } 068 069 public void setEntityContext(EntityContext ctx) { 070 context = ctx; 071 } 072 073 public void unsetEntityContext() { 074 context = null; 075 } 076 077 public void ejbRemove() { 078 } 079 080 public void ejbLoad() { 081 } 082 083 public void ejbStore() { 084 } 085 086 public void ejbPassivate() { 087 } 088 089 public void ejbActivate() { 090 } 091 }