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StrutsVelocityContext.javaAPI DocExample3626Mon Jul 23 13:26:52 BST 2007org.apache.struts2.views.velocity

StrutsVelocityContext

public class StrutsVelocityContext extends org.apache.velocity.VelocityContext

Fields Summary
private static final long
serialVersionUID
com.opensymphony.xwork2.util.ValueStack
stack
org.apache.velocity.VelocityContext[]
chainedContexts
Constructors Summary
public StrutsVelocityContext(com.opensymphony.xwork2.util.ValueStack stack)



       
        this(null, stack);
public StrutsVelocityContext(org.apache.velocity.VelocityContext[] chainedContexts, com.opensymphony.xwork2.util.ValueStack stack)

        this.chainedContexts = chainedContexts;
        this.stack = stack;
Methods Summary
public booleaninternalContainsKey(java.lang.Object key)

        boolean contains = super.internalContainsKey(key);

        // first let's check to see if we contain the requested key
        if (contains) {
            return true;
        }

        // if not, let's search for the key in the ognl value stack
        if (stack != null) {
            Object o = stack.findValue(key.toString());

            if (o != null) {
                return true;
            }

            o = stack.getContext().get(key.toString());
            if (o != null) {
                return true;
            }
        }

        // if we still haven't found it, le's search through our chained contexts
        if (chainedContexts != null) {
            for (int index = 0; index < chainedContexts.length; index++) {
                if (chainedContexts[index].containsKey(key)) {
                    return true;
                }
            }
        }

        // nope, i guess it's really not here
        return false;
public java.lang.ObjectinternalGet(java.lang.String key)

        // first, let's check to see if have the requested value
        if (super.internalContainsKey(key)) {
            return super.internalGet(key);
        }

        // still no luck?  let's look against the value stack
        if (stack != null) {
            Object object = stack.findValue(key);

            if (object != null) {
                return object;
            }

            object = stack.getContext().get(key);
            if (object != null) {
                return object;
            }

        }

        // finally, if we're chained to other contexts, let's look in them
        if (chainedContexts != null) {
            for (int index = 0; index < chainedContexts.length; index++) {
                if (chainedContexts[index].containsKey(key)) {
                    return chainedContexts[index].internalGet(key);
                }
            }
        }

        // nope, i guess it's really not here
        return null;