在am中定义消息集束，并在CO中验证之后抛出异常。

需求：在页面上点某个按钮的时候，需要收集所有异常并抛出。

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方式1：参考 EBS OAF开发中的错误/异常处理(ErrorHandling) (转) 中消息集束的方式，在一个方法中定义消息集束并抛出。

方式2：在am中定义一个消息集束为全局变量，并在所有校验的地方将异常插入此变量，参考代码。

CO:

PoEvaluateAMImpl peAMImpl = (PoEvaluateAMImpl)am;
am.invokeMethod("initializeExceptionList");
checkRangeOverlap(pageContext, webBean);

if(!peAMImpl.getExceptionList().isEmpty()){
    peAMImpl.raiseBundledExceptions();
}


private void checkRangeOverlap(OAPageContext pageContext, 
                               OAWebBean webBean) throws OAException {

    OAApplicationModule am = pageContext.getApplicationModule(webBean);
    PoEvaluateAMImpl peAMImpl = (PoEvaluateAMImpl)am;
    OAException localOAException = 
        new OAException("PON", "PON_AUC_OVERLAP_RANGES");
    if (!validateUniqueRanges(pageContext, webBean)) {
        peAMImpl.getExceptionList().add(localOAException);
    }
}
    

AM：

import com.sun.java.util.collections.ArrayList;
import com.sun.java.util.collections.Iterator;
import com.sun.java.util.collections.List;    
    
private transient List m_exceptionList = null;

public void beforeRelease() {
    super.beforeRelease();
    this.m_exceptionList = null;
}
    
private void setExceptionList(List paramList) {
    this.m_exceptionList = paramList;
}

public List getExceptionList() {
    return this.m_exceptionList;
}

public void initializeExceptionList() {
    if (getExceptionList() == null) {
        setExceptionList(new ArrayList());
    } else {
        getExceptionList().clear();
    }
}

public void raiseBundledExceptions() {
    List localList = getExceptionList();
    if ((localList != null) && (!localList.isEmpty())) {
        OAException.raiseBundledOAException(localList);
    }
}