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| |
| @HasQuery |
| |
| <p> |
| Identical to {@link oaj.http.annotation.HasFormData @HasFormData}, but only checks the existing of the parameter in the URL string, not |
| URL-encoded form posts. |
| </p> |
| <ul class='javatree'> |
| <li class='ja'>{@link oaj.http.annotation.HasQuery} |
| </ul> |
| <p> |
| Unlike {@link oaj.http.annotation.HasFormData @HasFormData}, using this annotation does not result in the servlet reading the contents |
| of URL-encoded form posts. |
| Therefore, this annotation can be used in conjunction with the {@link oaj.http.annotation.Body @Body} annotation or |
| {@link oajr.RestRequest#getBody()} method for <c>application/x-www-form-urlencoded POST</c> calls. |
| </p> |
| <h5 class='figure'>Example:</h5> |
| <p class='bpcode w800'> |
| <ja>@RestMethod</ja>(name=<jsf>GET</jsf>) |
| <jk>public void</jk> doGet(<ja>@HasQuery</ja>(<js>"p1"</js>) <jk>boolean</jk> p1) {...} |
| </p> |
| <p> |
| This is functionally equivalent to the following code: |
| </p> |
| <p class='bpcode w800'> |
| <ja>@RestMethod</ja>(name=<jsf>GET</jsf>) |
| <jk>public void</jk> doGet(RestRequest req) { |
| <jk>boolean</jk> p1 = req.hasQuery(<js>"p1"</js>); |
| ... |
| } |
| </p> |
| <p> |
| The parameter type must be either <jk>boolean</jk> or {@link java.lang.Boolean}. |
| </p> |
| <p> |
| The following table shows the behavioral differences between <ja>@HasQuery</ja> and <ja>@Query</ja>: |
| </p> |
| <table class='styled w400'> |
| <tr> |
| <th><c>Query content</c></th> |
| <th><c><ja>@HasQuery</ja>(<js>"a"</js>)</c></th> |
| <th><c><ja>@Query</ja>(<js>"a"</js>)</c></th> |
| </tr> |
| <tr> |
| <td><c>?a=foo</c></td> |
| <td><jk>true</jk></td> |
| <td><js>"foo"</js></td> |
| </tr> |
| <tr> |
| <td><c>?a=</c></td> |
| <td><jk>true</jk></td> |
| <td><js>""</js></td> |
| </tr> |
| <tr> |
| <td><c>?a</c></td> |
| <td><jk>true</jk></td> |
| <td><jk>null</jk></td> |
| </tr> |
| <tr> |
| <td><c>?b=foo</c></td> |
| <td><jk>false</jk></td> |
| <td><jk>null</jk></td> |
| </tr> |
| </table> |