Custom AF:table, the default filtering view filtered etc.

JDeveloper 12.1.3

I am trying to assemble the pieces, I found on these forums and elsewhere on the web, given that I use 12.1.3 do not know if what I found, it is best practice, given that some ideas are dated.

Let's say I have a table of addresses, several fields such address_id,address_line, city, state, zip, country... but what is important for this use case, the table has a current flag, which is always either Y or N.

1. try to implement filtering without using table blockable af. The main reason is that users do not want to see this side of filter above the column headers. In addition, the table should be filterable by a single attribute (current flag), and finally this even filterable column is not used in the presentation of the table, only the addresses in the table. The current filter is af:selectOneChoice something like:

< af:selectOneChoice label = "Current"? ID = "soc2" simple = 'true '.

valueChangeListener = "#{backingBeanScope.backing_view1.filterChanged} '"

autoSubmit = "true" binding = "#{backingBeanScope.backing_view1.currentFilter}" >

< af:selectItem label = "All" value = "All" id = "si2" / >

< af:selectItem label = 'Current' value = 'Y' id = "si3" / >

< af:selectItem label = "Non-routine" value = "N" id = "i5" / >

< / af:selectOneChoice >

2. the second condition is that when the user opens the page for the first time, more high af:selectOneChoice is defined on < af:selectItem label = 'value' = 'Y' id = "si3" / > and the table is filtered to display only the lines with the flag set to y. user can use af:selectOneChoice to set the table to any other option. If the user navigates to this page and returns, the table and the 'filter' must retain value selected previously.

3. If a table is filtered with say < af:selectItem label = 'value' = 'Y' id = "si3" / > and the user modifies or creates record, such as modified or new address is marked with current = 'n', (and this is done in the form of popup dialogue), after the closure of the pop-up window CRUD, newly edited/created record cannot be demonstrated.

I guess I'd know how to implement these requirements individually (not sure about 2 though) but putting all the best practice way, probably not. Any help is appreciated, I'll close this thread once I have a complete solution for this use case (which I or someone else will publish) so that it can be useful in the future.

My 5 cents:

1.

valueChangeListener = "#{backingBeanScope.backing_view1.filterChanged} '"

backingBeanScope is specific scope adf provided for declarative components.

If your code is not part of these components so it is best to use a different scope (for this use case, application scope is probably sufficient and you can't even write the requestScope prefix)

Binding = "#{backingBeanScope.backing_view1.currentFilter}" > "

It is usually bad practice (any component of a binding class is a standard approach for desktop applications, but not for the JSF).

In short, you should bind the component to a managed bean that you must handle with any component (which is rare).

In all other cases, you must create a concrete property binding (as the "value", "label", "read-only",...)

2. you are talking about the value of the element, so it would be 'natural' to link the 'value' variable in some managed bean property.

Because this bean must survive browsing, it should be placed in pageFlowScope or sessionScope.

3. well, you will probably be filter your lines using ViewCriteria.

Then maybe that you can use ViewObjectImpl.rowQualifies () method of applied access VC, read the value of the bind variable and determine if this line should be displayed or not.

Something like this: binary: the substitution of ViewObjectImpl::rowQualifies (...) for memory filtering of the child nodes of a tree component

Dario

Tags: Java

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