Prep work for #5175: calc if prop-based Creator has any injectables (#5387)

Author: cowtowncoder

src/main/java/com/fasterxml/jackson/databind/deser/CreatorProperty.java

@@ -280,6 +280,11 @@ public Object getInjectableValueId() {
         return (_injectableValue == null) ? null : _injectableValue.getId();
     }
 
+    @Override // since 2.21
+    public JacksonInject.Value getInjectionDefinition() {
+        return _injectableValue;
+    }
+
     @Override
     public boolean isInjectionOnly() {
         return (_injectableValue != null) && !_injectableValue.willUseInput(true);

src/main/java/com/fasterxml/jackson/databind/deser/SettableBeanProperty.java

@@ -3,6 +3,7 @@
 import java.io.IOException;
 import java.lang.annotation.Annotation;
 
+import com.fasterxml.jackson.annotation.JacksonInject;
 import com.fasterxml.jackson.core.*;
 import com.fasterxml.jackson.databind.*;
 import com.fasterxml.jackson.databind.deser.impl.FailingDeserializer;
@@ -468,6 +469,14 @@ public int getCreatorIndex() {
      */
     public Object getInjectableValueId() { return null; }
 
+    /**
+     * Accessor for injection definition, if this bean property supports
+     * value injection.
+     *
+     * @since 2.21
+     */
+    public JacksonInject.Value getInjectionDefinition() { return null; }
+
     /**
      * Accessor for checking whether this property is injectable, and if so,
      * ONLY injectable (will not bind from input).

src/main/java/com/fasterxml/jackson/databind/deser/impl/PropertyBasedCreator.java

@@ -45,6 +45,14 @@ public final class PropertyBasedCreator
      */
     protected final SettableBeanProperty[] _allProperties;
 
+    /**
+     * Indexes of properties with associated Injectable values, if any:
+     * {@code null} if none.
+     *
+     * @since 2.21
+     */
+    protected final BitSet _injectablePropIndexes;
+
     /*
     /**********************************************************
     /* Construction, initialization
@@ -61,11 +69,8 @@ protected PropertyBasedCreator(DeserializationContext ctxt,
         if (caseInsensitive) {
             _propertyLookup = CaseInsensitiveMap.construct(ctxt.getConfig().getLocale());
         } else {
-            _propertyLookup = new HashMap<String, SettableBeanProperty>();
+            _propertyLookup = new HashMap<>();
         }
-        final int len = creatorProps.length;
-        _propertyCount = len;
-        _allProperties = new SettableBeanProperty[len];
 
         // 26-Feb-2017, tatu: Let's start by aliases, so that there is no
         //    possibility of accidental override of primary names
@@ -83,14 +88,27 @@ protected PropertyBasedCreator(DeserializationContext ctxt,
                 }
             }
         }
+        final int len = creatorProps.length;
+        _propertyCount = len;
+        _allProperties = new SettableBeanProperty[len];
+        BitSet injectablePropIndexes = null;
+
         for (int i = 0; i < len; ++i) {
             SettableBeanProperty prop = creatorProps[i];
             _allProperties[i] = prop;
             // 22-Jan-2018, tatu: ignorable entries should be skipped
             if (!prop.isIgnorable()) {
                 _propertyLookup.put(prop.getName(), prop);
             }
+            if (prop.getInjectionDefinition() != null) {
+                if (injectablePropIndexes == null) {
+                    injectablePropIndexes = new BitSet(len);
+                }
+                injectablePropIndexes.set(i);
+            }
         }
+
+        _injectablePropIndexes = injectablePropIndexes;
     }
 
     /**
@@ -102,6 +120,7 @@ protected PropertyBasedCreator(PropertyBasedCreator base,
     {
         _propertyCount = base._propertyCount;
         _valueInstantiator = base._valueInstantiator;
+        _injectablePropIndexes = base._injectablePropIndexes;
         _propertyLookup = propertyLookup;
         _allProperties = allProperties;
     }