Uses of Interface
org.apache.calcite.linq4j.function.Function

Packages that use Function

Package	Description
org.apache.calcite.linq4j.function	Contains definitions of functions and predicates.
org.apache.calcite.linq4j.tree	Object model for Java expressions.

Uses of Function in org.apache.calcite.linq4j.function

Subinterfaces of Function in org.apache.calcite.linq4j.function

Modifier and Type	Interface	Description
interface	BigDecimalFunction1<T0>	Function that takes one parameter and returns a BigDecimal value.
interface	DoubleFunction1<T0>	Function that takes one parameter and returns a native double value.
interface	FloatFunction1<T0>	Function that takes one parameter and returns a native float value.
interface	Function0<R>	Function with no parameters.
interface	Function1<T0,R>	Function with one parameter.
interface	Function2<T0,T1,R>	Function with two parameters.
interface	IntegerFunction1<T0>	Function that takes one parameter and returns a native int value.
interface	LongFunction1<T0>	Function that takes one parameter and returns a native long value.
interface	NullableBigDecimalFunction1<T0>	Function that takes one parameter and returns a BigDecimal value that may be null.
interface	NullableDoubleFunction1<T0>	Function that takes one parameter and returns a Double value that may be null.
interface	NullableFloatFunction1<T0>	Function that takes one parameter and returns a Float value that may be null.
interface	NullableIntegerFunction1<T0>	Function that takes one parameter and returns an Integer value that may be null.
interface	NullableLongFunction1<T0>	Function that takes one parameter and returns a Long value that may be null.
interface	Predicate1<T0>	Function with one parameter returning a native boolean value.
interface	Predicate2<T0,T1>	Function with two parameters returning a native boolean value.

Classes in org.apache.calcite.linq4j.function that implement Function

Modifier and Type	Class	Description
private static class	Functions.Ignore<R,T0,T1>	Ignore.

Fields in org.apache.calcite.linq4j.function with type parameters of type Function

Modifier and Type	Field	Description
static Map<Class<? extends Function>,Class>	Functions.FUNCTION_RESULT_TYPES
private static Map<Class,Class<? extends Function>>	Functions.FUNCTION1_CLASSES

Methods in org.apache.calcite.linq4j.function that return types with arguments of type Function

Modifier and Type	Method	Description
static Class<? extends Function>	Functions.functionClass(Type aClass)	Returns the appropriate interface for a lambda function with 1 argument and the given return type.

Uses of Function in org.apache.calcite.linq4j.tree

Classes in org.apache.calcite.linq4j.tree with type parameters of type Function

Modifier and Type	Class	Description
class	FunctionExpression<F extends Function<?>>	Represents a strongly typed lambda expression as a data structure in the form of an expression tree.

Fields in org.apache.calcite.linq4j.tree declared as Function

Modifier and Type	Field	Description
private F	FunctionExpression.dynamicFunction
F	FunctionExpression.function

Methods in org.apache.calcite.linq4j.tree with type parameters of type Function

Modifier and Type	Method	Description
static <F extends Function<?>> FunctionExpression<F>	Expressions.lambda(F function)	Creates a FunctionExpression from an actual function.
static <T,F extends Function<? extends T>> FunctionExpression<F>	Expressions.lambda(Class<F> type, BlockStatement body, Iterable<? extends ParameterExpression> parameters)	Creates a LambdaExpression by first constructing a delegate type.
static <T,F extends Function<? extends T>> FunctionExpression<F>	Expressions.lambda(Class<F> type, BlockStatement body, ParameterExpression... parameters)	Creates a LambdaExpression by first constructing a delegate type, using varargs.
static <T,F extends Function<? extends T>> FunctionExpression<F>	Expressions.lambda(Class<F> type, Expression body, Iterable<? extends ParameterExpression> parameters)	Creates a LambdaExpression by first constructing a delegate type.
static <T,F extends Function<? extends T>> FunctionExpression<F>	Expressions.lambda(Class<F> type, Expression body, ParameterExpression... parameters)	Creates a LambdaExpression by first constructing a delegate type, using varargs.
static <F extends Function<?>> FunctionExpression<F>	Expressions.lambda(BlockStatement body, Iterable<? extends ParameterExpression> parameters)	Creates a LambdaExpression by first constructing a delegate type.
static <F extends Function<?>> FunctionExpression<F>	Expressions.lambda(BlockStatement body, ParameterExpression... parameters)	Creates a LambdaExpression by first constructing a delegate type, using varargs.
static <F extends Function<?>> FunctionExpression<F>	Expressions.lambda(Expression body, Iterable<? extends ParameterExpression> parameters)	Creates an Expression where the delegate type F is known at compile time.
static <F extends Function<?>> FunctionExpression<F>	Expressions.lambda(Expression body, ParameterExpression... parameters)	Creates an Expression where the delegate type F is known at compile time, using varargs.
<T extends Function<?>> void	ExpressionVisitor.visitLambda(FunctionExpression<T> expression)	Visits the children of the delegate expression.