public abstract class LogicalWindow extends Object implements Resolvable<LogicalWindow>
param: aliasAttribute window alias param: timeAttribute time field indicating event-time or processing-time
Constructor and Description |
---|
LogicalWindow(Expression aliasAttribute,
Expression timeAttribute) |
Modifier and Type | Method and Description |
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Expression |
aliasAttribute() |
LogicalWindow |
resolveExpressions(scala.Function1<Expression,Expression> resolver)
An implementing class can resolve its expressions by applying the given resolver
function on its parameters.
|
Expression |
timeAttribute() |
String |
toString() |
ValidationResult |
validate(TableEnvironment tableEnv) |
public LogicalWindow(Expression aliasAttribute, Expression timeAttribute)
public Expression aliasAttribute()
public Expression timeAttribute()
public LogicalWindow resolveExpressions(scala.Function1<Expression,Expression> resolver)
Resolvable
resolveExpressions
in interface Resolvable<LogicalWindow>
resolver
- function that can resolve an expressionpublic ValidationResult validate(TableEnvironment tableEnv)
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