fix: reintroduce valuecontext constructors (#22371)

Author: tepi

flow-data/src/main/java/com/vaadin/flow/data/binder/ValueContext.java

@@ -37,6 +37,16 @@ public class ValueContext implements Serializable {
     private final HasValue<?, ?> hasValue;
     private final Locale locale;
 
+    /**
+     * Constructor for {@code ValueContext} without a {@code Locale}.
+     */
+    public ValueContext() {
+        this.binder = null;
+        component = null;
+        hasValue = null;
+        locale = findLocale(component);
+    }
+
     /**
      * Constructor for {@code ValueContext} without a {@code Locale}.
      *
@@ -50,6 +60,19 @@ public ValueContext(Binder<?> binder) {
         locale = findLocale(component);
     }
 
+    /**
+     * Constructor for {@code ValueContext} without a {@code Component}.
+     *
+     * @param locale
+     *            The locale used with conversion. Can be null.
+     */
+    public ValueContext(Locale locale) {
+        this.binder = null;
+        component = null;
+        this.locale = locale;
+        hasValue = null;
+    }
+
     /**
      * Constructor for {@code ValueContext} without a {@code Component}.
      *
@@ -65,6 +88,25 @@ public ValueContext(Binder binder, Locale locale) {
         hasValue = null;
     }
 
+    /**
+     * Constructor for {@code ValueContext}.
+     *
+     * @param component
+     *            The component related to current value. Can be null. If the
+     *            component implements {@link HasValue}, it will be returned by
+     *            {@link #getHasValue()} as well.
+     */
+    public ValueContext(Component component) {
+        this.binder = null;
+        this.component = component;
+        if (component instanceof HasValue) {
+            hasValue = (HasValue<?, ?>) component;
+        } else {
+            hasValue = null;
+        }
+        locale = findLocale(component);
+    }
+
     /**
      * Constructor for {@code ValueContext}.
      *
@@ -86,6 +128,21 @@ public ValueContext(Binder binder, Component component) {
         locale = findLocale(component);
     }
 
+    /**
+     * Constructor for {@code ValueContext}.
+     *
+     * @param component
+     *            The component related to current value. Can be null.
+     * @param hasValue
+     *            The value source related to current value. Can be null.
+     */
+    public ValueContext(Component component, HasValue<?, ?> hasValue) {
+        this.binder = null;
+        this.component = component;
+        this.hasValue = hasValue;
+        locale = findLocale(component);
+    }
+
     /**
      * Constructor for {@code ValueContext}.
      *
@@ -104,6 +161,25 @@ public ValueContext(Binder binder, Component component,
         locale = findLocale(component);
     }
 
+    /**
+     * Constructor for {@code ValueContext}.
+     *
+     * @param component
+     *            The component can be {@code null}.
+     * @param locale
+     *            The locale used with conversion. Can be {@code null}.
+     * @param hasValue
+     *            The value source related to current value. Can be
+     *            {@code null}.
+     */
+    public ValueContext(Component component, HasValue<?, ?> hasValue,
+            Locale locale) {
+        this.binder = null;
+        this.component = component;
+        this.hasValue = hasValue;
+        this.locale = locale;
+    }
+
     /**
      * Constructor for {@code ValueContext}.
      *