org.apache.flink.table.expressions.resolver.rules

Interface ResolverRule.ResolutionContext

Enclosing interface:

ResolverRule

public static interface ResolverRule.ResolutionContext

Contextual information that can be used during application of the rule. E.g. one can access fields in inputs by name etc.

Method Summary

Modifier and Type	Method and Description
TableConfig	configuration() Access to configuration.
FunctionLookup	functionLookup() Access to available FunctionDefinitions.
Optional<LocalReferenceExpression>	getLocalReference(String alias) Access to available local references.
Optional<LocalOverWindow>	getOverWindow(org.apache.flink.table.expressions.Expression alias) Access to available local over windows.
ExpressionResolver.PostResolverFactory	postResolutionFactory() Enables the creation of resolved expressions for transformations after the actual resolution.
FieldReferenceLookup	referenceLookup() Access to available FieldReferenceExpression in inputs.
TableReferenceLookup	tableLookup() Access to available TableReferenceExpression.

Method Detail

configuration

TableConfig configuration()

Access to configuration.

referenceLookup

FieldReferenceLookup referenceLookup()

Access to available FieldReferenceExpression in inputs.

tableLookup

TableReferenceLookup tableLookup()

Access to available TableReferenceExpression.

functionLookup

FunctionLookup functionLookup()

Access to available FunctionDefinitions.

postResolutionFactory

ExpressionResolver.PostResolverFactory postResolutionFactory()

Enables the creation of resolved expressions for transformations after the actual resolution.

getLocalReference

Optional<LocalReferenceExpression> getLocalReference(String alias)

Access to available local references.

getOverWindow

Optional<LocalOverWindow> getOverWindow(org.apache.flink.table.expressions.Expression alias)

Access to available local over windows.