[jOOQ/jOOQ#12425] Move IFNULL, NULLIF functions to API generator

jOOQ/src/main/java/org/jooq/impl/Nullif.java

@@ -0,0 +1,139 @@
+/*
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * Other licenses:
+ * -----------------------------------------------------------------------------
+ * Commercial licenses for this work are available. These replace the above
+ * ASL 2.0 and offer limited warranties, support, maintenance, and commercial
+ * database integrations.
+ *
+ * For more information, please visit: http://www.jooq.org/licenses
+ *
+ *
+ *
+ *
+ *
+ *
+ *
+ *
+ *
+ *
+ *
+ *
+ *
+ *
+ *
+ *
+ */
+package org.jooq.impl;
+
+import static org.jooq.impl.DSL.*;
+import static org.jooq.impl.Internal.*;
+import static org.jooq.impl.Keywords.*;
+import static org.jooq.impl.Names.*;
+import static org.jooq.impl.SQLDataType.*;
+import static org.jooq.impl.Tools.*;
+import static org.jooq.impl.Tools.BooleanDataKey.*;
+import static org.jooq.impl.Tools.DataExtendedKey.*;
+import static org.jooq.impl.Tools.DataKey.*;
+import static org.jooq.SQLDialect.*;
+
+import org.jooq.*;
+import org.jooq.Record;
+import org.jooq.conf.*;
+import org.jooq.impl.*;
+import org.jooq.tools.*;
+
+import java.util.*;
+
+
+/**
+ * The <code>NULLIF</code> statement.
+ */
+@SuppressWarnings({ "rawtypes", "unchecked", "unused" })
+final class Nullif<T>
+extends
+    AbstractField<T>
+{
+
+    private final Field<T> value;
+    private final Field<T> other;
+
+    Nullif(
+        Field<T> value,
+        Field<T> other
+    ) {
+        super(
+            N_NULLIF,
+            nullable((DataType) dataType(value), value, other)
+        );
+
+        this.value = nullSafeNotNull(value, (DataType) OTHER);
+        this.other = nullSafeNotNull(other, (DataType) OTHER);
+    }
+
+    // -------------------------------------------------------------------------
+    // XXX: QueryPart API
+    // -------------------------------------------------------------------------
+
+    @Override
+    public final void accept(Context<?> ctx) {
+        switch (ctx.family()) {
+
+
+
+
+
+
+
+
+
+
+
+
+
+            default:
+                ctx.visit(function(N_NULLIF, getDataType(), value, other));
+                break;
+        }
+    }
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+    // -------------------------------------------------------------------------
+    // The Object API
+    // -------------------------------------------------------------------------
+
+    @Override
+    public boolean equals(Object that) {
+        if (that instanceof Nullif) {
+            return
+                StringUtils.equals(value, ((Nullif) that).value) &&
+                StringUtils.equals(other, ((Nullif) that).other)
+            ;
+        }
+        else
+            return super.equals(that);
+    }
+}