Wicket pm-null files

For example, Wicket applications can use or provide IModel implementations that read a model value from a resource file or retrieve a model value from a database only when needed. The use of a single model interface as compared to having multiple interfaces, or having no model interface at all has a number of advantages:. The constructor for this page constructs a Label component. The first parameter to the Label component's constructor is the Wicket id, which associates the Label with a tag in the HelloWorld.

The model data passed to the Label constructor above is apparently a String. Internally Label creates a Model for the String. Model is a simple default implementation of IModel.

The data we gave to the model in the previous example, the string "Hello World", is constant. No matter how many times Wicket asks for the model data, it will get the same thing.

Now consider a slightly more complex example:. The model data is still a String, the value of person. Recall that Java strings are immutable: this string will never change. Even if person. So the page will still display the old value to the user even if it is reloaded. Models like this, whose values never change, are known as static models. In many cases the underlying data can change, and you want the user to see those changes. For example, the user might use a form to change a person's name. Models which can automatically reflect change are known as dynamic models.

While the Model class is static, most of the other core Wicket model classes are dynamic. It would be inconvenient to have to do this for every component that needs a dynamic model.

Instead, you can use the PropertyModel class or one of the other classes described below. The PropertyModel class allows you to create a model that accesses a particular property of its associated model object at runtime.

This property is accessed using a simple expression language with a dot notation e. The simplest PropertyModel constructor is:. When the property model is asked for its value by the framework, it will use the property expression to access the model object's property. Nested property expressions are possible as well. You can access sub-properties via reflection using a dotted path notation, which means the property expression "person. A second constructor on PropertyModel is available for models that wish to access properties involving type conversions:.

Although the property models will do automatic type conversions for you, it may not always do the kind of conversion you desire. This alternative constructor creates a property model that forces a particular conversion to occur. For example, you may wish to access a String or Object property of something as an Integer. Compound models allow containers to share models with their children.

This saves memory, but more importantly, it makes replication of models much cheaper in a clustered environment. The basic idea is that the contained components usually want model data that can be easily derived at runtime from the model of their container.

So, give the contained components no explicit model, and when a model is needed, Wicket will search up the containment hierarchy for a compound model. The compound model can retrieve model data for any of its contained components. CompoundPropertyModel is the most commonly used compound model.

An instance of this class uses the name of the contained component as a property expression to retrieve data from its own model data. To use a CompoundPropertyModel , simply set one as the model for a container, such as a Form or a Page.

Create the contained components with no model of their own. Insure that the component identifier names match the appropriate property names. Here's a simple example using a CompoundPropertyModel. Suppose we have a Person class, with two properties: Name and Age. We want a simple form for the user to edit a Person.

A complete working example would require a save button and so forth but the use of a compound model doesn't change those. The component name can in fact be a more complicated property expression. Suppose for example that the Person class also has an address property, of class Address , and that class in turn has a city property.

To define this field in the form we can do this:. The corresponding input field in the html must have a wicket id of "address.

This works, but it does expose the internal structure of the model data in the html. CompoundPropertyModel has a method that can be used to rectify this. With this association in place the child component can have whatever name we like, rather than having the match the property expression.

To use CompoundPropertyModel. Also, note that if you are using a component that you do not want to reference the compound property model, but is a child of the form, that you define a model for that component.

For example:. It is possible to create Models that explicitly define in normal java code what is to be returned as the model object for each property within the object being wrapped. So instead of specifying via a string the name of the property to fetch the value you from the specification is done in Java. While creating Model's in this pattern takes longer more classes than using Reflection based PropertyModels it prevents the problems that can occur when critical functionality is defined in String based context that most IDE's do not refactor properly.

By default dcm4chee will store it inside an "archive" called folder in your dcm4chee installation directory.

If you go to JMX Console and then to the bean you have a function called listAllFilesytems where you should see the configured filesystems.

Thanks, I can now get to the login page. TabbedPanel [2:modules] ITab index [0] Page: class org. Page And can proceed no further.

I can't make head or tail of the log files. Any ideas please? I know I will have to ask more when I can't send files from Osirix. What is the best resource for a noob to help figure things out on my own? You have more than 1 jboss instance running - ports already in use errors. Thanks for your help, Not sure how that came about.

I wondered if it were a problem with the rc. MethodMismatchResponse Response when a submission method mismatch is detected static class Form.

Fields inherited from class org. Bytes getFileMaxSize Gets maximum size for each file of an upload. CharSequence getJsForInterfaceUrl CharSequence url This generates a piece of javascript code that sets the url in the special hidden field and submits the form.

Bytes getMaxSize Gets the maximum size for uploads. String getValidatorKeyPrefix Returns the prefix used when building validator keys. MethodMismatchResponse onMethodMismatch Called when a form has been submitted using a method differing from return value of getMethod. Forms namespaces void remove IFormValidator validator Removes a form validator from the form. This method is typically called when a form needs to be reset. If set not null , a hidden submit component will be rendered right after the form tag, so that when users press enter in a textfield, this submit component's action will be selected.

If no default component is set it is null , nothing additional is rendered. Unfortunately having a 'default' button in a form is ill defined in the standards, and of course IE has it's own way of doing things. Parameters: url - The interface url that has to be stored in the hidden field and submitted Returns: The javascript code that submits the form. If null, the setting IApplicationSettings. This allows a form to use a separate "set" of keys.

For example if prefix "short" is returned, validator key short. Required will be tried instead of Required key. This can be useful when different designs are used for a form. Forms like these can return the "short" or any other string validator prefix and declare key: short. The prefix can also be overridden on form component level by overriding FormComponent.

Returns: True if this form has at least one error. Handles form submissions. This method allows the user to react to this situation. Parameters: submitter - listener that will receive form processing events, if null the form will attempt to locate one See Also: validate wantSubmitOnNestedFormSubmit public boolean wantSubmitOnNestedFormSubmit Whether this form wants to be submitted too if a nested form is submitted.

By default, this is false, so when a nested form is submitted, this form will not be submitted. If this method is overridden to return true, this form will be submitted.

Returns: Whether this form wants to be submitted too if a nested form is submitted.