【Java开源代码栏目提醒】:网学会员,鉴于大家对Java开源代码十分关注,论文会员在此为大家搜集整理了“AccessPlanFactory.java”一文,供大家参考学习!
/*
* Copyright 2004 Clinton Begin
*
* Licensed 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 per
missions and
* limitations under the License.
*/
package com.ibatis.
sqlmap.engine.accessplan;
import java.util.Map;
/**
* Factory to get an accesss plan appropriate for an object
*/
public class AccessPlanFactory {
private static boolean bytecodeEnhancementEnabled = false;
private AccessPlanFactory() {
}
/**
* Creates an access plan for working with a bean
*
* @param clazz
* @param propertyNames
* @return An access plan
*/
public static AccessPlan getAccessPlan(Class clazz, String[] propertyNames) {
AccessPlan plan;
boolean complex = false;
if (clazz == null || propertyNames == null) {
complex = true;
} else {
for (int i = 0; i < propertyNames.length; i++) {
if (propertyNames[i].indexOf('[') > -1
|| propertyNames[i].indexOf('.') > -1) {
complex = true;
break;
}
}
}
if (complex) {
plan = new ComplexAccessPlan(clazz, propertyNames);
} else if (Map.class.isAssignableFrom(clazz)) {
plan = new MapAccessPlan(clazz, propertyNames);
} else {
// Possibly causes bug 945746 --but the bug is unconfirmed (can't be reproduced)
if (bytecodeEnhancementEnabled) {
try {
plan = new EnhancedPropertyAccessPlan(clazz, propertyNames);
} catch (Throwable t) {
try {
plan = new PropertyAccessPlan(clazz, propertyNames);
} catch (Throwable t2) {
plan = new ComplexAccessPlan(clazz, propertyNames);
}
}
} else {
try {
plan = new PropertyAccessPlan(clazz, propertyNames);
} catch (Throwable t) {
plan = new ComplexAccessPlan(clazz, propertyNames);
}
}
}
return plan;
}
/**
* Tells whether or not bytecode enhancement (CGLIB, etc) is enabled
*
* @return true if bytecode enhancement is enabled
*/
public static boolean isBytecodeEnhancementEnabled() {
return bytecodeEnhancementEnabled;
}
/**
* Turns on or off bytecode enhancement (CGLIB, etc)
*
* @param bytecodeEnhancementEnabled - the switch
*/
public static void setBytecodeEnhancementEnabled(boolean bytecodeEnhancementEnabled) {
AccessPlanFactory.bytecodeEnhancementEnabled = bytecodeEnhancementEnabled;
}
}