On 10/13/11 15:19 , Niclas Hedhman wrote:
Promising. As I am just starting to architect a new app that needs a
strong formal ReST interface, I am particularly interested in this.
Question; In your example you have a query link without arguments. How
are those supposed to be provided? (Gosh I need to read up on this
again...)
That was the simplistic case where the query does not need any
parameters. This example executes a query that requires a form to be
filled in, and then executes a command after that:
crc.onResource( new ResultHandler<Resource>()
{
@Override
public void handleResult( Resource result, ContextResourceClient
client )
{
client.query( "querywithvalue", null );
}
} ).onProcessingError( "querywithvalue", TestQuery.class, new
ResultHandler<TestQuery>()
{
@Override
public void handleResult( TestQuery result, ContextResourceClient
client )
{
ValueBuilder<TestQuery> builder =
module.newValueBuilderWithPrototype( result );
builder.prototype().abc().set( "abc" +
builder.prototype().abc().get() );
client.query( "querywithvalue", builder.newInstance() );
}
} ).onQuery( "querywithvalue", TestResult.class, new
ResultHandler<TestResult>()
{
@Override
public void handleResult( TestResult result, ContextResourceClient
client )
{
client.command( "commandwithvalue", null );
}
} ).onProcessingError( "commandwithvalue", Form.class, new
ResultHandler<Form>()
{
@Override
public void handleResult( Form result, ContextResourceClient client )
{
result.set( "abc", "right" );
client.command( "commandwithvalue", result );
}
} );
crc.refresh();
---
The first handler will get the form for the query. Then the second one,
on "processing error" (since the form was not filled in), will take the
default form and update the values and send it again. On response from
that it invokes a command, which fails as it did not send in a form, and
then when it gets the form that is filled in and submitted.
That would be a more realistic sequence of things, and where each step
can be repeated, depending on how the flow goes. Note that there is no
URL building anywhere, just as you never modify URL's when you use a web
browser. You click on links and submit forms.
/Rickard
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