[FLINK-4562] [table] Move table examples into a dedicated module in flink-examples.

This closes #2460.

flink-dist/pom.xml

@@ -338,6 +338,7 @@ under the License.
 								<excludes>
 									<exclude>org.apache.flink:flink-examples-batch</exclude>
 									<exclude>org.apache.flink:flink-examples-streaming</exclude>
+									<exclude>org.apache.flink:flink-examples-table</exclude>
 									<exclude>org.apache.flink:flink-python</exclude>
 									<exclude>org.slf4j:slf4j-log4j12</exclude>
 									<exclude>log4j:log4j</exclude>

flink-examples/flink-examples-table/pom.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements.  See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership.  The ASF licenses this file
+to you 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.
+-->
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+		 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+		 xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+	<modelVersion>4.0.0</modelVersion>
+
+	<parent>
+		<groupId>org.apache.flink</groupId>
+		<artifactId>flink-examples_2.10</artifactId>
+		<version>1.3-SNAPSHOT</version>
+		<relativePath>..</relativePath>
+	</parent>
+
+	<name>flink-examples-table</name>
+	<artifactId>flink-examples-table_2.10</artifactId>
+	<packaging>jar</packaging>
+
+	<dependencies>
+		<dependency>
+			<groupId>org.apache.flink</groupId>
+			<artifactId>flink-table_2.10</artifactId>
+			<version>${project.version}</version>
+		</dependency>
+	</dependencies>
+
+	<build>
+		<plugins>
+			<plugin>
+				<groupId>net.alchim31.maven</groupId>
+				<artifactId>scala-maven-plugin</artifactId>
+				<executions>
+					<execution>
+						<id>scala-compile-first</id>
+						<phase>process-resources</phase>
+						<goals>
+							<goal>add-source</goal>
+							<goal>compile</goal>
+						</goals>
+					</execution>
+					<execution>
+						<id>scala-test-compile</id>
+						<phase>process-test-resources</phase>
+						<goals>
+							<goal>testCompile</goal>
+						</goals>
+					</execution>
+				</executions>
+			</plugin>
+			<plugin>
+				<groupId>org.apache.maven.plugins</groupId>
+				<artifactId>maven-shade-plugin</artifactId>
+				<executions>
+					<execution>
+						<id>flink-table-examples_2.10</id>
+						<phase>package</phase>
+						<goals>
+							<goal>shade</goal>
+						</goals>
+						<configuration>
+							<shadeTestJar>false</shadeTestJar>
+							<shadedArtifactAttached>false</shadedArtifactAttached>
+							<createDependencyReducedPom>false</createDependencyReducedPom>
+							<finalName>TableExamples</finalName>
+							<outputFile>flink-examples-table-with-dependencies.jar</outputFile>
+							<filters>
+								<filter>
+									<artifact>*:*</artifact>
+									<includes>
+										<include>org.codehaus.commons.compiler.properties</include>
+										<include>org/codehaus/janino/**</include>
+										<include>org/codehaus/commons/**</include>
+										<include>org/apache/calcite/**</include>
+										<include>org/apache/flink/table/**</include>
+										<include>org/apache/flink/shaded/calcite/com/google/common/**</include>
+										<include>org/apache/flink/shaded/calcite/org/eigenbase/util/property/**</include>
+									</includes>
+									<excludes>
+										<exclude>META-INF/*.SF</exclude>
+										<exclude>META-INF/*.DSA</exclude>
+										<exclude>META-INF/*.RSA</exclude>
+									</excludes>
+								</filter>
+							</filters>
+						</configuration>
+					</execution>
+				</executions>
+			</plugin>
+		</plugins>
+	</build>
+</project>

flink-libraries/flink-table/src/main/java/org/apache/flink/table/examples/java/WordCountSQL.java → flink-examples/flink-examples-table/src/main/java/org/apache/flink/table/examples/java/WordCountSQL.java

@@ -17,11 +17,11 @@
  */
 package org.apache.flink.table.examples.java;
 
-import org.apache.flink.table.api.Table;
 import org.apache.flink.api.java.DataSet;
 import org.apache.flink.api.java.ExecutionEnvironment;
-import org.apache.flink.table.api.java.BatchTableEnvironment;
+import org.apache.flink.table.api.Table;
 import org.apache.flink.table.api.TableEnvironment;
+import org.apache.flink.table.api.java.BatchTableEnvironment;
 
 /**
  * Simple example that shows how the Batch SQL API is used in Java.

flink-libraries/flink-table/src/main/java/org/apache/flink/table/examples/java/WordCountTable.java → flink-examples/flink-examples-table/src/main/java/org/apache/flink/table/examples/java/WordCountTable.java

@@ -17,11 +17,11 @@
  */
 package org.apache.flink.table.examples.java;
 
-import org.apache.flink.table.api.Table;
 import org.apache.flink.api.java.DataSet;
 import org.apache.flink.api.java.ExecutionEnvironment;
-import org.apache.flink.table.api.java.BatchTableEnvironment;
+import org.apache.flink.table.api.Table;
 import org.apache.flink.table.api.TableEnvironment;
+import org.apache.flink.table.api.java.BatchTableEnvironment;
 
 /**
   * Simple example for demonstrating the use of the Table API for a Word Count in Java.

flink-libraries/flink-table/src/main/scala/org/apache/flink/table/examples/scala/StreamSQLExample.scala → flink-examples/flink-examples-table/src/main/scala/org/apache/flink/table/examples/scala/StreamSQLExample.scala

@@ -18,9 +18,9 @@
 package org.apache.flink.table.examples.scala
 
 import org.apache.flink.api.scala._
-import org.apache.flink.table.api.scala._
 import org.apache.flink.streaming.api.scala.{DataStream, StreamExecutionEnvironment}
 import org.apache.flink.table.api.TableEnvironment
+import org.apache.flink.table.api.scala._
 
 /**
   * Simple example for demonstrating the use of SQL on a Stream Table.

flink-libraries/flink-table/src/main/scala/org/apache/flink/table/examples/scala/StreamTableExample.scala → flink-examples/flink-examples-table/src/main/scala/org/apache/flink/table/examples/scala/StreamTableExample.scala

@@ -18,9 +18,9 @@
 package org.apache.flink.table.examples.scala
 
 import org.apache.flink.api.scala._
-import org.apache.flink.table.api.scala._
 import org.apache.flink.streaming.api.scala.{DataStream, StreamExecutionEnvironment}
 import org.apache.flink.table.api.TableEnvironment
+import org.apache.flink.table.api.scala._
 
 /**
   * Simple example for demonstrating the use of Table API on a Stream Table.
@@ -28,7 +28,6 @@ import org.apache.flink.table.api.TableEnvironment
   * This example shows how to:
   *  - Convert DataStreams to Tables
   *  - Apply union, select, and filter operations
-  *
   */
 object StreamTableExample {
 

flink-examples/pom.xml

@@ -68,5 +68,6 @@ under the License.
 	<modules>
 		<module>flink-examples-batch</module>
 		<module>flink-examples-streaming</module>
+		<module>flink-examples-table</module>
 	</modules>
 </project>

flink-libraries/flink-table/src/test/scala/org/apache/flink/table/api/scala/batch/table/AggregationsITCase.scala

@@ -25,7 +25,6 @@ import org.apache.flink.table.api.scala._
 import org.apache.flink.api.scala.util.CollectionDataSets
 import org.apache.flink.types.Row
 import org.apache.flink.table.api.TableEnvironment
-import org.apache.flink.table.examples.scala.WordCountTable.{WC => MyWC}
 import org.apache.flink.test.util.TestBaseUtils
 import org.junit._
 import org.junit.runner.RunWith
@@ -156,17 +155,17 @@ class AggregationsITCase(
     val tEnv = TableEnvironment.getTableEnvironment(env, config)
 
     val input = env.fromElements(
-      MyWC("hello", 1),
-      MyWC("hello", 1),
-      MyWC("ciao", 1),
-      MyWC("hola", 1),
-      MyWC("hola", 1))
+      WC("hello", 1),
+      WC("hello", 1),
+      WC("ciao", 1),
+      WC("hola", 1),
+      WC("hola", 1))
     val expr = input.toTable(tEnv)
     val result = expr
       .groupBy('word)
       .select('word, 'frequency.sum as 'frequency)
       .filter('frequency === 2)
-      .toDataSet[MyWC]
+      .toDataSet[WC]
 
     val mappedResult = result.map(w => (w.word, w.frequency * 10)).collect()
     val expected = "(hello,20)\n" + "(hola,20)"
@@ -339,4 +338,6 @@ class AggregationsITCase(
     val results = t.toDataSet[Row].collect()
     TestBaseUtils.compareResultAsText(results.asJava, expected)
   }
+
+  case class WC(word: String, frequency: Long)
 }