[#3942] Add support for PostgreSQL functions returning single table records

jOOQ-codegen/src/main/java/org/jooq/util/JavaGenerator.java

@@ -4895,6 +4895,11 @@ public class JavaGenerator extends AbstractGenerator {
             type = getStrategy().getFullJavaClassName(db.getUDT(schema, u), udtMode);
         }
 
+        // [#3942] PostgreSQL treats UDTs and table types in similar ways
+        else if (db.getTable(schema, u) != null) {
+            type = getStrategy().getFullJavaClassName(db.getTable(schema, u), udtMode);
+        }
+
         // Check for custom types
         else if (db.getConfiguredCustomType(u) != null) {
             type = u;
@@ -4944,9 +4949,12 @@ public class JavaGenerator extends AbstractGenerator {
             sb.append(")");
         }
         else if (db.getUDT(schema, u) != null) {
-            UDTDefinition udt = db.getUDT(schema, u);
-
-            sb.append(getStrategy().getFullJavaIdentifier(udt));
+            sb.append(getStrategy().getFullJavaIdentifier(db.getUDT(schema, u)));
+            sb.append(".getDataType()");
+        }
+        // [#3942] PostgreSQL treats UDTs and table types in similar ways
+        else if (db.getTable(schema, u) != null) {
+            sb.append(getStrategy().getFullJavaIdentifier(db.getTable(schema, u)));
             sb.append(".getDataType()");
         }
         else if (db.getEnum(schema, u) != null) {

jOOQ/src/main/java/org/jooq/Table.java

@@ -109,6 +109,12 @@ public interface Table<R extends Record> extends TableLike<R> {
      */
     Class<? extends R> getRecordType();
 
+    /**
+     * The table's record type as a UDT data type, in case the underlying
+     * database supports table records as UDT records.
+     */
+    DataType<R> getDataType();
+
     /**
      * Create a new {@link Record} of this table's type.
      *

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

@@ -110,6 +110,7 @@ abstract class AbstractTable<R extends Record> extends AbstractQueryPart impleme
     private final Schema          tableschema;
     private final String          tablename;
     private final String          tablecomment;
+    private transient DataType<R> type;
 
     AbstractTable(String name) {
         this(name, null, null);
@@ -148,6 +149,15 @@ abstract class AbstractTable<R extends Record> extends AbstractQueryPart impleme
      */
     abstract Fields<R> fields0();
 
+    @Override
+    public final DataType<R> getDataType() {
+        if (type == null) {
+            type = new TableDataType<R>(this);
+        }
+
+        return type;
+    }
+
     @Override
     public final RecordType<R> recordType() {
         return fields0();

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

@@ -0,0 +1,73 @@
+/**
+ * Copyright (c) 2009-2016, 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 org.jooq.Record;
+import org.jooq.SQLDialect;
+import org.jooq.Table;
+
+/**
+ * @author Lukas Eder
+ */
+final class TableDataType<R extends Record> extends DefaultDataType<R> {
+
+    /**
+     * Generated UID
+     */
+    private static final long serialVersionUID = 3262508265391094581L;
+
+    @SuppressWarnings("unchecked")
+    TableDataType(Table<R> table) {
+        super(SQLDialect.DEFAULT, (Class<R>) table.getRecordType(), getQualifiedName(table));
+    }
+
+    private static String getQualifiedName(Table<?> table) {
+        StringBuilder sb = new StringBuilder();
+
+        if (table.getSchema() != null) {
+            sb.append(table.getSchema().getName());
+            sb.append(".");
+        }
+
+        sb.append(table.getName());
+        return sb.toString();
+    }
+}