Examples with WindowExpression io.confluent.ksql.parser.tree.WindowExpression used on opensource projects

Example 1 with WindowExpression

use of io.confluent.ksql.parser.tree.WindowExpression in project ksql by confluentinc.

the class ExpressionFormatterTest method shouldFormatFunctionCallWithWindow.

@Test
public void shouldFormatFunctionCallWithWindow() {
    final FunctionCall functionCall = new FunctionCall(new NodeLocation(1, 1), QualifiedName.of("function"), Optional.of(new Window("window", new WindowExpression("blah", new TumblingWindowExpression(1L, TimeUnit.SECONDS)))), false, Collections.singletonList(new StringLiteral("name")));
    assertThat(ExpressionFormatter.formatExpression(functionCall), equalTo("function('name') OVER  WINDOW  WINDOW blah  TUMBLING ( SIZE 1 SECONDS ) "));
}

Example 2 with WindowExpression

use of io.confluent.ksql.parser.tree.WindowExpression in project ksql by confluentinc.

the class AstBuilder method visitWindowExpression.

@Override
public Node visitWindowExpression(SqlBaseParser.WindowExpressionContext ctx) {
    String windowName = DEFAULT_WINDOW_NAME;
    if (ctx.IDENTIFIER() != null) {
        windowName = ctx.IDENTIFIER().getText();
    }
    windowName = windowName.toUpperCase();
    if (ctx.tumblingWindowExpression() != null) {
        TumblingWindowExpression tumblingWindowExpression = (TumblingWindowExpression) visitTumblingWindowExpression(ctx.tumblingWindowExpression());
        return new WindowExpression(windowName, tumblingWindowExpression);
    } else if (ctx.hoppingWindowExpression() != null) {
        HoppingWindowExpression hoppingWindowExpression = (HoppingWindowExpression) visitHoppingWindowExpression(ctx.hoppingWindowExpression());
        return new WindowExpression(windowName, hoppingWindowExpression);
    } else if (ctx.sessionWindowExpression() != null) {
        SessionWindowExpression sessionWindowExpression = (SessionWindowExpression) visitSessionWindowExpression(ctx.sessionWindowExpression());
        return new WindowExpression(windowName, sessionWindowExpression);
    }
    throw new KsqlException("Window description is not correct.");
}