Add @ignore for ignoring a BeanParam field (or query param field) (#197)

* Ignore BeanFields

* rename annotation

Author: SentryMan

http-api/src/main/java/io/avaje/http/api/Ignore.java

@@ -0,0 +1,12 @@
+package io.avaje.http.api;
+
+import static java.lang.annotation.ElementType.FIELD;
+import static java.lang.annotation.RetentionPolicy.SOURCE;
+
+import java.lang.annotation.Retention;
+import java.lang.annotation.Target;
+
+/** Mark a field on a BeanParam/FormParam class as not a request parameter of any kind */
+@Target(FIELD)
+@Retention(SOURCE)
+public @interface Ignore {}

http-generator-core/src/main/java/io/avaje/http/generator/core/BeanParamReader.java

@@ -40,6 +40,10 @@ private void read() {
   }
 
   private void readField(Element enclosedElement) {
+
+    if (IgnorePrism.isPresent(enclosedElement)) {
+      return;
+    }
     FieldReader field = new FieldReader(enclosedElement, defaultParamType);
     fieldMap.put(field.varName(), field);
   }

http-generator-core/src/main/java/io/avaje/http/generator/core/package-info.java

@@ -1,6 +1,7 @@
 /** Generate the prisms to access annotation info */
 @GeneratePrism(value = io.avaje.http.api.Controller.class, publicAccess = true)
 @GeneratePrism(value = io.avaje.http.api.BeanParam.class, publicAccess = true)
+@GeneratePrism(value = io.avaje.http.api.Ignore.class, publicAccess = true)
 @GeneratePrism(value = io.avaje.http.api.QueryParam.class, publicAccess = true)
 @GeneratePrism(value = io.avaje.http.api.Client.class, publicAccess = true)
 @GeneratePrism(value = io.avaje.http.api.Cookie.class, publicAccess = true)

tests/test-javalin-jsonb/src/main/java/org/example/myapp/web/GetBeanForm.java

@@ -9,6 +9,7 @@
 import javax.validation.constraints.Size;
 
 import io.avaje.http.api.Header;
+import io.avaje.http.api.Ignore;
 import io.avaje.http.api.QueryParam;
 import io.avaje.jsonb.Json;
 
@@ -30,6 +31,12 @@ public class GetBeanForm {
 
   @QueryParam private Set<ServerType> type;
 
+  @Json.Ignore @Ignore private String ignored;
+
+  public String getIgnored() {
+    return ignored;
+  }
+
   public String getName() {
     return name;
   }