本文整理汇总了Java中org.apache.flink.table.api.Table.filter方法的典型用法代码示例。如果您正苦于以下问题：Java Table.filter方法的具体用法？Java Table.filter怎么用？Java Table.filter使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类org.apache.flink.table.api.Table的用法示例。
在下文中一共展示了Table.filter方法的8个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: testNumericAutocastInComparison
import org.apache.flink.table.api.Table; //导入方法依赖的package包/类
@Test
public void testNumericAutocastInComparison() throws Exception {
ExecutionEnvironment env = ExecutionEnvironment.getExecutionEnvironment();
BatchTableEnvironment tableEnv = TableEnvironment.getTableEnvironment(env, config());
DataSource<Tuple6<Byte, Short, Integer, Long, Float, Double>> input =
env.fromElements(
new Tuple6<>((byte) 1, (short) 1, 1, 1L, 1.0f, 1.0d),
new Tuple6<>((byte) 2, (short) 2, 2, 2L, 2.0f, 2.0d));
Table table =
tableEnv.fromDataSet(input, "a,b,c,d,e,f");
Table result = table
.filter("a > 1 && b > 1 && c > 1L && d > 1.0f && e > 1.0d && f > 1");
DataSet<Row> ds = tableEnv.toDataSet(result, Row.class);
List<Row> results = ds.collect();
String expected = "2,2,2,2,2.0,2.0";
compareResultAsText(results, expected);
}
示例2: testAllRejectingFilter
import org.apache.flink.table.api.Table; //导入方法依赖的package包/类
@Test
public void testAllRejectingFilter() throws Exception {
ExecutionEnvironment env = ExecutionEnvironment.getExecutionEnvironment();
BatchTableEnvironment tableEnv = TableEnvironment.getTableEnvironment(env, config());
DataSet<Tuple3<Integer, Long, String>> input = CollectionDataSets.get3TupleDataSet(env);
Table table = tableEnv.fromDataSet(input, "a, b, c");
Table result = table
.filter("false");
DataSet<Row> ds = tableEnv.toDataSet(result, Row.class);
List<Row> results = ds.collect();
String expected = "\n";
compareResultAsText(results, expected);
}
示例3: testAllPassingFilter
import org.apache.flink.table.api.Table; //导入方法依赖的package包/类
@Test
public void testAllPassingFilter() throws Exception {
ExecutionEnvironment env = ExecutionEnvironment.getExecutionEnvironment();
BatchTableEnvironment tableEnv = TableEnvironment.getTableEnvironment(env, config());
DataSet<Tuple3<Integer, Long, String>> input = CollectionDataSets.get3TupleDataSet(env);
Table table = tableEnv.fromDataSet(input, "a, b, c");
Table result = table
.filter("true");
DataSet<Row> ds = tableEnv.toDataSet(result, Row.class);
List<Row> results = ds.collect();
String expected = "1,1,Hi\n" + "2,2,Hello\n" + "3,2,Hello world\n" +
"4,3,Hello world, how are you?\n" + "5,3,I am fine.\n" + "6,3,Luke Skywalker\n" +
"7,4,Comment#1\n" + "8,4,Comment#2\n" + "9,4,Comment#3\n" + "10,4,Comment#4\n" +
"11,5,Comment#5\n" + "12,5,Comment#6\n" + "13,5,Comment#7\n" +
"14,5,Comment#8\n" + "15,5,Comment#9\n" + "16,6,Comment#10\n" +
"17,6,Comment#11\n" + "18,6,Comment#12\n" + "19,6,Comment#13\n" +
"20,6,Comment#14\n" + "21,6,Comment#15\n";
compareResultAsText(results, expected);
}
示例4: testFilterOnIntegerTupleField
import org.apache.flink.table.api.Table; //导入方法依赖的package包/类
@Test
public void testFilterOnIntegerTupleField() throws Exception {
ExecutionEnvironment env = ExecutionEnvironment.getExecutionEnvironment();
BatchTableEnvironment tableEnv = TableEnvironment.getTableEnvironment(env, config());
DataSet<Tuple3<Integer, Long, String>> input = CollectionDataSets.get3TupleDataSet(env);
Table table = tableEnv.fromDataSet(input, "a, b, c");
Table result = table
.filter(" a % 2 = 0 ");
DataSet<Row> ds = tableEnv.toDataSet(result, Row.class);
List<Row> results = ds.collect();
String expected = "2,2,Hello\n" + "4,3,Hello world, how are you?\n" + "6,3,Luke Skywalker\n" + "8,4," +
"Comment#2\n" + "10,4,Comment#4\n" + "12,5,Comment#6\n" + "14,5,Comment#8\n" + "16,6," +
"Comment#10\n" + "18,6,Comment#12\n" + "20,6,Comment#14\n";
compareResultAsText(results, expected);
}
示例5: testNotEquals
import org.apache.flink.table.api.Table; //导入方法依赖的package包/类
@Test
public void testNotEquals() throws Exception {
ExecutionEnvironment env = ExecutionEnvironment.getExecutionEnvironment();
BatchTableEnvironment tableEnv = TableEnvironment.getTableEnvironment(env, config());
DataSet<Tuple3<Integer, Long, String>> input = CollectionDataSets.get3TupleDataSet(env);
Table table = tableEnv.fromDataSet(input, "a, b, c");
Table result = table
.filter("!( a % 2 <> 0 ) ");
DataSet<Row> ds = tableEnv.toDataSet(result, Row.class);
List<Row> results = ds.collect();
String expected = "2,2,Hello\n" + "4,3,Hello world, how are you?\n" + "6,3,Luke Skywalker\n" + "8,4," +
"Comment#2\n" + "10,4,Comment#4\n" + "12,5,Comment#6\n" + "14,5,Comment#8\n" + "16,6," +
"Comment#10\n" + "18,6,Comment#12\n" + "20,6,Comment#14\n";
compareResultAsText(results, expected);
}
示例6: testDisjunctivePreds
import org.apache.flink.table.api.Table; //导入方法依赖的package包/类
@Test
public void testDisjunctivePreds() throws Exception {
ExecutionEnvironment env = ExecutionEnvironment.getExecutionEnvironment();
BatchTableEnvironment tableEnv = TableEnvironment.getTableEnvironment(env, config());
DataSet<Tuple3<Integer, Long, String>> input = CollectionDataSets.get3TupleDataSet(env);
Table table = tableEnv.fromDataSet(input, "a, b, c");
Table result = table
.filter("a < 2 || a > 20");
DataSet<Row> ds = tableEnv.toDataSet(result, Row.class);
List<Row> results = ds.collect();
String expected = "1,1,Hi\n" + "21,6,Comment#15\n";
compareResultAsText(results, expected);
}
示例7: testIntegerBiggerThan128
import org.apache.flink.table.api.Table; //导入方法依赖的package包/类
@Test
public void testIntegerBiggerThan128() throws Exception {
ExecutionEnvironment env = ExecutionEnvironment.getExecutionEnvironment();
BatchTableEnvironment tableEnv = TableEnvironment.getTableEnvironment(env, config());
DataSet<Tuple3<Integer, Long, String>> input = env.fromElements(new Tuple3<>(300, 1L, "Hello"));
Table table = tableEnv.fromDataSet(input, "a, b, c");
Table result = table
.filter("a = 300 ");
DataSet<Row> ds = tableEnv.toDataSet(result, Row.class);
List<Row> results = ds.collect();
String expected = "300,1,Hello\n";
compareResultAsText(results, expected);
}
示例8: testFilterInvalidField
import org.apache.flink.table.api.Table; //导入方法依赖的package包/类
@Test(expected = ValidationException.class)
public void testFilterInvalidField() throws Exception {
ExecutionEnvironment env = ExecutionEnvironment.getExecutionEnvironment();
BatchTableEnvironment tableEnv = TableEnvironment.getTableEnvironment(env, config());
DataSet<Tuple3<Integer, Long, String>> input = CollectionDataSets.get3TupleDataSet(env);
Table table = tableEnv.fromDataSet(input, "a, b, c");
table
// Must fail. Field foo does not exist.
.filter("foo = 17");
}