Package org.apache.tapestry5.services

Examples of org.apache.tapestry5.services.Heartbeat.begin()

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                                                                      { fieldType }, null), builder.toString());

        transformation.replaceWriteAccess(fieldName, writeMethodName);

        builder.clear();
        builder.begin();

        // Check to see if there's a recorded change for this component, this field.

        builder.addln("if (%s.hasFieldChange(\"%s\"))", resourcesFieldName, logicalFieldName);
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        if (cache)
        {
            builder.clear();

            builder.addln("if (! %s)", invariantFieldName);
            builder.begin();
            builder.addln("%s = %s;", fieldName, defaultFieldName);
            builder.addln("%s = false;", cachedFieldName);
            builder.end();

            transformation.extendMethod(TransformConstants.POST_RENDER_CLEANUP_SIGNATURE, builder
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    private void addWriterMethod(String fieldName, String cachedFieldName, boolean cache, String parameterName,
                                 String fieldType, String resourcesFieldName, ClassTransformation transformation)
    {
        BodyBuilder builder = new BodyBuilder();
        builder.begin();

        // Before the component is loaded, updating the property sets the default value
        // for the parameter. The value is stored in the field, but will be
        // rolled into default field inside containingPageDidLoad().
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        // Before the component is loaded, updating the property sets the default value
        // for the parameter. The value is stored in the field, but will be
        // rolled into default field inside containingPageDidLoad().

        builder.addln("if (! %s.isLoaded())", resourcesFieldName);
        builder.begin();
        builder.addln("%s = $1;", fieldName);
        builder.addln("return;");
        builder.end();

        // Always start by updating the parameter; this will implicitly check for
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    private void addReaderMethod(String fieldName, String cachedFieldName, String invariantFieldName, boolean cache,
                                 String parameterName, String fieldType, String resourcesFieldName,
                                 ClassTransformation transformation)
    {
        BodyBuilder builder = new BodyBuilder();
        builder.begin();

        // While the component is still loading, or when the value for the component is cached,
        // or if the value is not bound, then return the current value of the field.

        builder.addln("if (%s || ! %s.isLoaded() || ! %<s.isBound(\"%s\")) return %s;", cachedFieldName,
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        builder.add("if (%s", invariantFieldName);

        if (cache) builder.add(" || %s.isRendering()", resourcesFieldName);

        builder.addln(")");
        builder.begin();
        builder.addln("%s = result;", fieldName);
        builder.addln("%s = true;", cachedFieldName);
        builder.end();

        builder.addln("return result;");
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        TransformMethodSignature sig = new TransformMethodSignature(Modifier.PRIVATE, fieldType, methodName, null,
                                                                    null);

        BodyBuilder builder = new BodyBuilder();
        builder.begin();

        builder.addln("return (%s) %s.getPage(\"%s\");", fieldType, componentSource, injectedPageName);

        builder.end();
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        // I can't imagine a scenario where a component would have more than one
        // field with InjectComponent, but that's the way these APIs work, lists of names.

        BodyBuilder builder = new BodyBuilder();
        builder.begin();

        builder.addln("%s container = %s.getContainer();", Component.class.getName(), transformation
                .getResourcesFieldName());

        for (String fieldName : names)
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                    InjectContainer.class);

            String fieldType = transformation.getFieldType(fieldName);

            builder.addln("try");
            builder.begin();
            builder.addln("this.%s = (%s) container;", fieldName, fieldType);
            builder.end();
            builder.addln("catch (ClassCastException ex)");
            builder.begin();
            builder.addln(
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            builder.addln("try");
            builder.begin();
            builder.addln("this.%s = (%s) container;", fieldName, fieldType);
            builder.end();
            builder.addln("catch (ClassCastException ex)");
            builder.begin();
            builder.addln(
                    "String message = %s.buildCastExceptionMessage(container, \"%s.%s\", \"%s\");",
                    InjectContainerWorker.class.getName(),
                    model.getComponentClassName(),
                    fieldName,
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