Use the mod function in the Criteria API (#733)

Author: nakamura-to

doma-core/src/main/java/org/seasar/doma/jdbc/criteria/query/BuilderSupport.java

@@ -509,7 +509,15 @@ public void visit(ArithmeticExpression.Div<?> div) {
 
     @Override
     public void visit(ArithmeticExpression.Mod<?> mod) {
-      binaryOperator(mod.getName(), mod.left, mod.right);
+      if (config.getDialect().supportsModOperator()) {
+        binaryOperator(mod.getName(), mod.left, mod.right);
+      } else {
+        buf.appendSql("mod(");
+        mod.left.accept(operandVisitor);
+        buf.appendSql(", ");
+        mod.right.accept(operandVisitor);
+        buf.appendSql(")");
+      }
     }
 
     @Override

doma-core/src/main/java/org/seasar/doma/jdbc/dialect/Dialect.java

@@ -149,6 +149,15 @@ default boolean supportsAliasInUpdateClause() {
     return false;
   }
 
+  /**
+   * Whether this object supports mod operator {@code %}.
+   *
+   * @return {@code true}, if this object supports it
+   */
+  default boolean supportsModOperator() {
+    return true;
+  }
+
   /**
    * Returns an SQL object to get IDENTITY values that are generated in the database.
    *

doma-core/src/main/java/org/seasar/doma/jdbc/dialect/Oracle11Dialect.java

@@ -159,6 +159,11 @@ public boolean supportsResultSetReturningAsOutParameter() {
     return true;
   }
 
+  @Override
+  public boolean supportsModOperator() {
+    return false;
+  }
+
   @Override
   public JdbcType<ResultSet> getResultSetType() {
     return RESULT_SET;