Said another way, let's say I have a value stack that consists of a [ model, action ]
here's how the following ognl would resolve:
[0] - a CompoundRoot object that contains our stack, [model, action]
[0].toString() - calls toString() on the first object in the value stack (excluding the CompoundRoot) that supports the toString() method
[1].foo - call getFoo() on the first object in the value stack starting from [OS:action] and excluding the CompoundRoot that supports a getFoo() method
public?class?HomeAction?implements?Action?
{
????private?String?name=?"propertyOfAction";????private?Person?person=null;????private?Collection?collection?=?new?ArrayList();
????public?String?execute()?throws?Exception?{????????collection.add(new?Person("zkj"));????????collection.add(new?Person("yql"));????????collection.add(person);????????return?SUCCESS;
????}????public?String?getName()?{????????return?name;????}????public?Person?getPerson()?{????????return?person;????}????public?Collection?getCollection()?{????????return?collection;????}????public?void?setPerson(Person?person)?{????????this.person?=?person;????}
}
<ww:iterator?value="collection"?status="person">????????????<ww:if?test="#person.first?==?true">?????????????????[0]?:<ww:property?value="[0]"/></br>????????????????[1]?:<ww:property?value="[1]"/></br>????????????????[2]?:<ww:property?value="[2]"/></br>????????????</ww:if></ww:iterator>
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