Uses of Interface
org.apache.flink.table.expressions.Expression

Packages that use Expression

Package	Description
org.apache.flink.table.expressions
org.apache.flink.table.sources

Uses of Expression in org.apache.flink.table.expressions

Subinterfaces of Expression in org.apache.flink.table.expressions

Modifier and Type	Interface and Description
interface	ResolvedExpression Expression that has been fully resolved and validated.

Classes in org.apache.flink.table.expressions that implement Expression

Modifier and Type	Class and Description
class	CallExpression Resolved and validated call expression for calling a function.
class	FieldReferenceExpression A reference to a field in an input.
class	TypeLiteralExpression Expression that wraps DataType as a literal.
class	ValueLiteralExpression Expression for constant literal values.

Methods in org.apache.flink.table.expressions that return types with arguments of type Expression

Modifier and Type	Method and Description
List<Expression>	ValueLiteralExpression.getChildren()
List<Expression>	CallExpression.getChildren()
List<Expression>	TypeLiteralExpression.getChildren()
List<Expression>	Expression.getChildren()
List<Expression>	FieldReferenceExpression.getChildren()

Methods in org.apache.flink.table.expressions with parameters of type Expression

Modifier and Type	Method and Description
protected abstract T	ExpressionDefaultVisitor.defaultMethod(Expression expression)
static <V> Optional<V>	ExpressionUtils.extractValue(Expression expression, Class<V> targetClass) Extracts the value (excluding null) of a given class from an expression assuming it is a ValueLiteralExpression.
T	ExpressionDefaultVisitor.visit(Expression other)
R	ExpressionVisitor.visit(Expression other)

Uses of Expression in org.apache.flink.table.sources

Methods in org.apache.flink.table.sources that return Expression

Modifier and Type	Method and Description
Expression	FieldComputer.getExpression(ResolvedFieldReference[] fieldAccesses) Returns the Expression that computes the value of the field.

Method parameters in org.apache.flink.table.sources with type arguments of type Expression

Modifier and Type	Method and Description
TableSource<T>	FilterableTableSource.applyPredicate(List<Expression> predicates) Check and pick all predicates this table source can support.