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Copyright (C) 2010-2011 eBusiness Information, Excilys Group 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 permissions and limitations under the License.
 
 package com.googlecode.androidannotations.processing;
 
 import java.util.List;
 
 
 
 public class TransactionalProcessor implements ElementProcessor {
 
 	public Class<? extends AnnotationgetTarget() {
 		return Transactional.class;
 	}
 
 	public void process(Element elementJCodeModel codeModelEBeansHolder activitiesHolder) {
 		EBeanHolder holder = activitiesHolder.getEnclosingActivityHolder(element);
 
 		String methodName = element.getSimpleName().toString();
 		ExecutableElement executableElement = (ExecutableElementelement;
 
 		String returnTypeName = executableElement.getReturnType().toString();
 		JClass returnType = holder.refClass(returnTypeName);
 
 		JMethod method = holder.eBean.method(.returnTypemethodName);
 		method.annotate(Override.class);
 
 		List<JVarparams = new ArrayList<JVar>();
 		for (VariableElement parameter : executableElement.getParameters()) {
 			String parameterName = parameter.getSimpleName().toString();
 			String parameterType = parameter.asType().toString();
 			JVar param = method.param(holder.refClass(parameterType), parameterName);
 			params.add(param);
 		}
 
 		JVar db = params.get(0);
 
 		JBlock body = method.body();
 
 		body.invoke(db"beginTransaction");
 
 		JTryBlock tryBlock = body._try();
 
 		JInvocation superCall = JExpr.invoke(JExpr._super(), method);
 		for (JVar param : params) {
 			superCall.arg(param);
 		}
 		JBlock tryBody = tryBlock.body();
 		if (returnTypeName.equals("void")) {
 			tryBody.add(superCall);
 			tryBody.invoke(db"setTransactionSuccessful");
 			tryBody._return();
 		} else {
 			JVar result = tryBody.decl(returnType"result_"superCall);
 			tryBody.invoke(db"setTransactionSuccessful");
 			tryBody._return(result);
 		}
 
 		JCatchBlock catchBlock = tryBlock._catch(codeModel.ref(RuntimeException.class));
 
 		JVar exceptionParam = catchBlock.param("e");
 
 		JBlock catchBody = catchBlock.body();
 
 		JClass logClass = holder.refClass("android.util.Log");
 		JInvocation errorInvoke = catchBody.staticInvoke(logClass"e");
 
 		errorInvoke.arg(holder.eBean.name());
 		errorInvoke.arg("Error in transaction");
		errorInvoke.arg(exceptionParam);
		catchBody._throw(exceptionParam);
		tryBlock._finally().invoke(db"endTransaction");
	}
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