Examples of org.apache.tapestry.Link

org.apache.tapestry.Link
A link is the Tapestry representation of a URL or URI that triggers dynamic behavior. This link is in three parts: a path portion, an optional anchor, and a set of query parameters. A request for a link will ultimately be recognized by a {@link Dispatcher}.
Query parameter values are kept separate from the path portion to support encoding those values into hidden form fields (where appropriate).

    {
        String clientId = _support.allocateClientId(_resources.getId());


        Object[] activationContext = _context != null ? _context.toArray() : _emptyContext;


        Link link = _resources.createPageLink(_page, activationContext);


        writer.element("a", "href", link, "id", clientId);


        _resources.renderInformalParameters(writer);
    }

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        String clientId = _support.allocateClientId(_resources.getId());


        Object[] contextArray = _context == null ? new Object[0] : _context.toArray();


        Link link = _resources.createActionLink(ACTION_EVENT, false, contextArray);


        writer.element("a", "href", link, "id", clientId);


        _resources.renderInformalParameters(writer);
    }

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        if (generator instanceof LinkActionResponseGenerator)
        {
            LinkActionResponseGenerator linkGenerator = (LinkActionResponseGenerator) generator;


            Link link = linkGenerator.getLink();


            ComponentInvocation followup = _componentInvocationMap.get(link);


            return _followupInvoker.invoke(followup);
        }

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        String[] activationContext = collectActivationContextForPage(containingPage);


        ComponentInvocation invocation = new ComponentInvocation(target, contextStrings,
                activationContext);


        Link link = new LinkImpl(_encoder, _contextPathSource.getContextPath(), invocation, forForm);


        // Now see if the page has an activation context.


        addActivationContextToLink(link, activationContext);

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                : collectActivationContextForPage(page);


        PageLinkTarget target = new PageLinkTarget(logicalPageName);
        ComponentInvocation invocation = new ComponentInvocation(target, context, null);


        Link link = new LinkImpl(_encoder, _contextPathSource.getContextPath(), invocation, false);


        _componentInvocationMap.store(link, invocation);


        for (LinkFactoryListener listener : _listeners)
            listener.createdPageLink(link);

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        LinkFactory factory = new LinkFactoryImpl(request, response, resolver, map, null,
                _typeCoercer);
        factory.addListener(listener);


        Link link = factory.createPageLink(page);


        assertEquals(link.toRedirectURI(), ENCODED);


        // Make sure the link was passed to the LinkFactoryListener


        assertSame(link, holder.get());

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        LinkFactory factory = new LinkFactoryImpl(request, response, resolver, map, null,
                _typeCoercer);
        factory.addListener(listener);


        Link link = factory.createPageLink(page, "biff", "bazz");


        assertEquals(link.toRedirectURI(), ENCODED);


        // Make sure the link was passed to the LinkFactoryListener


        assertSame(link, holder.get());

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        LinkFactory factory = new LinkFactoryImpl(request, response, resolver, map, cache,
                _typeCoercer);
        factory.addListener(listener);


        Link link = factory.createPageLink(PAGE_LOGICAL_NAME);


        assertEquals(link.toRedirectURI(), ENCODED);


        // Make sure the link was passed to the LinkFactoryListener


        assertSame(link, holder.get());

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    {
        return new IAnswer<Void>()
        {
            public Void answer() throws Throwable
            {
                Link link = (Link) EasyMock.getCurrentArguments()[0];


                holder.put(link);


                return null;
            }

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        LinkFactory factory = new LinkFactoryImpl(request, response, resolver, map, cache,
                _typeCoercer);
        factory.addListener(listener);


        Link link = factory.createActionLink(element, eventName, false, context);


        assertEquals(link.toURI(), ENCODED);
        assertSame(link, holder.get());


        verify();
    }

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org.apache.tapestry.corelib.base.AbstractLinkTest

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