The new function of html:options tag

[Tong Shi Hong]

Hi:
In many cases, there has a iterate or arraylist in the Form Bean which
contents a bean list.
In original functions, we have to define a bean and call get property from
form bean to receive a iterate. Then call html:options tag to assign the
collection = "var xxxxList" property = "xxxx" to display the options.
The source code like :
<bean:define id="mxxxList" property="agetterproperty" />
...
<html:options collection="mxxxList" property="xxxxproperty" />

I had amend a little the function getIterate method of html:options tag to
search iterate from form bean property by collection name if the collection
not found in pagecontext. By this, the source code will be more sample as:
<html:options collection="xxxxList" property = "xxxxproperty" />
The xxxxList is the getter property of form bean which will return a
iterate/array/map. 
xxxxproperty is the getter property of bean which is in the iterate.

Attached is a the source code of new options java file. The only changes is
add a check whether the name param of getIterate is form bean. If it's not
form bean, will call getter property from form bean to lookup wheter there
has a getter method (getCollection) exist in form bean.

        Object bean = pageContext.findAttribute(beanName);
        if (bean == null)
            {
                if(beanName.equals(Constants.BEAN_KEY))
                {
                        throw new JspException
                        (messages.getMessage("getter.bean", beanName));
                } else
                {
                        return getIterator(null, name);
                }
            }

Regards
Shihong, NCS(Suzhou)

hkeOptionsTag.java
Description: Binary data

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