[jira] [Created] (CXF-7267) Member names must match bean attribute for BeanParam to work

[Daniel H. Peger (JIRA)]

Daniel H. Peger created CXF-7267:
------------------------------------

             Summary: Member names must match bean attribute for BeanParam to 
work
                 Key: CXF-7267
                 URL: https://issues.apache.org/jira/browse/CXF-7267
             Project: CXF
          Issue Type: Bug
    Affects Versions: 3.1.4
            Reporter: Daniel H. Peger
            Priority: Minor


I just ran into this problem on my first attempt to use {{@BeanParam}} and got 
this exception:

{noformat}
java.lang.IllegalArgumentException: Unresolved variables; only 0 value(s) given 
for 2 unique variable(s)
        at 
org.apache.cxf.jaxrs.impl.UriBuilderImpl.substituteVarargs(UriBuilderImpl.java:285)
        at 
org.apache.cxf.jaxrs.impl.UriBuilderImpl.doBuildUriParts(UriBuilderImpl.java:121)
...
{noformat}

My parameter bean looked like this:

{code}package com.recommind.common.rest;

import javax.ws.rs.PathParam;

public final class ApplicationIdentifierParameter
{

  @PathParam(PathParameters.PATH_APPLICATION_ID)
  private String mApplicationId;

  @PathParam(PathParameters.PATH_PROJECT_ID)
  private String mProjectId;

  public String getApplicationId()
  {
    return mApplicationId;
  }

  public void setApplicationId(String aApplicationId)
  {
    mApplicationId = aApplicationId;
  }

  public String getProjectId()
  {
    return mProjectId;
  }

  public void setProjectId(String aProjectId)
  {
    mProjectId = aProjectId;
  }
}
{code}

I debugged {{UriBuilderImpl}} and found that in {{ClientProxyImpl:514}} the to 
be evaluated members are identified by the names of the corresponding setters.

I think this is wrong - or at least inconvenient - as it is totally valid for a 
bean's internals field to have different names than the corresponding bean 
attribute. To my knowledge the Bean spec only requires setters and getters to 
match and does not care about the internal representation of the attributes.

Rather than looking at the setters ClientProxyImpl should iterate over the 
bean's fields, look for fields annotated with {{@PathParam}} and update the 
field using reflection.



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