Hi Mark,
The fix of "to derive the type directly from the value which ..." sounds not
a solution. In a slightly more complex scenario, the fix still fails.
Say the method signature is "public * theMethod(TheSupperType o)" and
calling the method in EL like
"#{theClassInstance.theMethod(theDerivedTypeInstance)}", where the supper
type can be a supper class or an interface, your fix fails.
Example project attached.
My suggestion as to the solution of resolving which method to call:
. Retrieve all methods of *theClassInstance*, and put them into the
CANDIDATES collection;
// Search a match by method name
. For each method in CANDIDATES,
. if the name is not *theMethod*, remove it from CANDIDATES
. If CANDIDATES is empty, then NOT-FOUND;
. else if only one is left, then FOUND;
// Search a match by params count
. else, count the number of actual params,
. For each method in CANDIDATES,
. if the number of formal params does not match that of actual params,
remove it from CANDIDATES
. // Optoional, handle cases of "method has variable number of arguments"
. If CANDIDATES is empty, then NOT-FOUND;
. else if only one is left, then FOUND;
// Search a match by param types
. else, evaluate all actual params;
. For each method in CANDIDATES,
. if NOT( for-each formalParamType.isAssignableFrom(actualParamType) ),
remove it from CANDIDATES
. // Optoional, handle cases of "method has variable number of arguments"
. If CANDIDATES is empty, then NOT-FOUND;
. else if only one is left, then FOUND;
. else, AMBIGUOUS
John Wu
http://old.nabble.com/file/p28843317/jsf-2.0-el-2.2.testcase-v2.zip
jsf-2.0-el-2.2.testcase-v2.zip
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