[#3783] Add Field<String> DSL.currentSchema()

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

@@ -0,0 +1,96 @@
+/**
+ * Copyright (c) 2009-2015, Data Geekery GmbH (http://www.datageekery.com)
+ * All rights reserved.
+ *
+ * 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.field;
+import static org.jooq.impl.DSL.function;
+
+import org.jooq.Configuration;
+import org.jooq.Field;
+
+/**
+ * @author Lukas Eder
+ */
+class CurrentSchema extends AbstractFunction<String> {
+
+    /**
+     * Generated UID
+     */
+    private static final long serialVersionUID = -7273879239726265322L;
+
+    CurrentSchema() {
+        super("current_schema", SQLDataType.VARCHAR);
+    }
+
+    @Override
+    final Field<String> getFunction0(Configuration configuration) {
+        switch (configuration.family()) {
+            /* [pro] xx
+            xxxx xxxx
+                xxxxxx xxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxx
+
+            xxxx xxxxxxx
+                xxxxxx xxxxxxxxxxxxxxx xxxxxxxxxxxxxx
+
+            xxxx xxxxxxxxxx
+                xxxxxx xxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxx
+
+            xxxx xxxxxxxx
+                xxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxx
+
+            xx [/pro] */
+            case DERBY:
+                return field("{current schema}", String.class);
+
+            case H2:
+                return field("{schema}()", String.class);
+
+            case MARIADB:
+            case MYSQL:
+                return field("{database}()", String.class);
+
+            case POSTGRES:
+                return field("{current_schema}", String.class);
+        }
+
+        return function("current_schema", String.class);
+    }
+}

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

@@ -68,6 +68,7 @@ import static org.jooq.SQLDialect.SQLITE;
 // ...
 // ...
 // ...
+// ...
 import static org.jooq.impl.Term.ROW_NUMBER;
 import static org.jooq.impl.Utils.combine;
 import static org.jooq.impl.Utils.configuration;
@@ -13660,15 +13661,21 @@ public class DSL {
     // -------------------------------------------------------------------------
 
     /**
-     * Get the current_user() function.
-     * <p>
-     * This translates into any dialect
+     * Get the <code>current_user()</code> function.
      */
     @Support({ CUBRID, DERBY, FIREBIRD, H2, HSQLDB, MARIADB, MYSQL, POSTGRES })
     public static Field<String> currentUser() {
         return new CurrentUser();
     }
 
+    /**
+     * Get the <code>current_schema()</code> function.
+     */
+    @Support({ DERBY, H2, MARIADB, MYSQL, POSTGRES })
+    public static Field<String> currentSchema() {
+        return new CurrentSchema();
+    }
+
     /**
      * Get the default data type for the {@link DSLContext}'s underlying
      * {@link SQLDialect} and a given Java type.