#1426 - ENH: Add bitwiseNot expression ... e.g. bitwiseNot("flags", BwFlags.HAS_COLOUR)

src/main/java/io/ebean/ExpressionList.java

@@ -1031,6 +1031,20 @@ public interface ExpressionList<T> {
    */
   ExpressionList<T> bitwiseAll(String propertyName, long flags);
 
+  /**
+   * Add expression for the given bit flags to be NOT set.
+   * <p>
+   * <pre>{@code
+   *
+   * where().bitwiseNot("flags", BwFlags.HAS_COLOUR)
+   *
+   * }</pre>
+   *
+   * @param propertyName The property that holds the flags value
+   * @param flags        The flags we are looking for
+   */
+  ExpressionList<T> bitwiseNot(String propertyName, long flags);
+
   /**
    * Add bitwise AND expression of the given bit flags to compare with the match/mask.
    * <p>

src/main/java/io/ebeaninternal/server/expression/DefaultExpressionList.java

@@ -711,6 +711,12 @@ public class DefaultExpressionList<T> implements SpiExpressionList<T> {
     return this;
   }
 
+  @Override
+  public ExpressionList<T> bitwiseNot(String propertyName, long flags) {
+    add(expr.bitwiseAnd(propertyName, flags, 0));
+    return this;
+  }
+
   @Override
   public ExpressionList<T> bitwiseAll(String propertyName, long flags) {
     add(expr.bitwiseAll(propertyName, flags));

src/main/java/io/ebeaninternal/server/expression/JunctionExpression.java

@@ -554,6 +554,11 @@ class JunctionExpression<T> implements SpiJunction<T>, SpiExpression, Expression
     return exprList.bitwiseAnd(propertyName, flags, match);
   }
 
+  @Override
+  public ExpressionList<T> bitwiseNot(String propertyName, long flags) {
+    return exprList.bitwiseNot(propertyName, flags);
+  }
+
   @Override
   public ExpressionList<T> ge(String propertyName, Object value) {
     return exprList.ge(propertyName, value);

src/test/java/org/tests/expression/bitwise/TestBitwiseExpressions.java

@@ -14,11 +14,24 @@ public class TestBitwiseExpressions extends BaseTestCase {
   public void where() {
 
     setup();
+    bitwiseNot();
     bitwiseAnd();
     bitwiseAny();
     bitwiseAll();
   }
 
+  private void bitwiseNot() {
+
+    List<BwBean> notColour = Ebean.find(BwBean.class)
+      // HAS_COLOUR not set ...
+      .where().bitwiseNot("flags", BwFlags.HAS_COLOUR)
+      .findList();
+
+    assertThat(notColour).hasSize(2);
+    assertThat(notColour.get(0).getName()).isEqualTo("Nothing");
+    assertThat(notColour.get(1).getName()).isEqualTo("SizeOnly");
+  }
+
   private void bitwiseAnd() {
 
     List<BwBean> list = Ebean.find(BwBean.class)