Package io.dialob.program.expr.arith

Class ImmutableArrayReducerOperator.Builder<T>

java.lang.Object

io.dialob.program.expr.arith.ImmutableArrayReducerOperator.Builder<T>

Enclosing class:

ImmutableArrayReducerOperator<T>

@NotThreadSafe
public static final class ImmutableArrayReducerOperator.Builder<T>
extends Object

Builds instances of type ImmutableArrayReducerOperator. Initialize attributes and then invoke the build() method to create an immutable instance.

Builder is not thread-safe and generally should not be stored in a field or collection, but instead used immediately to create instances.

Method Summary

Modifier and Type	Method	Description
ImmutableArrayReducerOperator.Builder<T>	arrayExpression(Expression arrayExpression)	Initializes the value for the arrayExpression attribute.
ImmutableArrayReducerOperator<T>	build()	Builds a new ImmutableArrayReducerOperator.
ImmutableArrayReducerOperator.Builder<T>	from(ArrayReducerOperator<T> instance)	Fill a builder with attribute values from the provided ArrayReducerOperator instance.
ImmutableArrayReducerOperator.Builder<T>	placeholderValue(@Nullable Object placeholderValue)	Initializes the value for the placeholderValue attribute.
ImmutableArrayReducerOperator.Builder<T>	reducer(BinaryOperator<T> reducer)	Initializes the value for the reducer attribute.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

from

@CanIgnoreReturnValue
public final ImmutableArrayReducerOperator.Builder<T> from(ArrayReducerOperator<T> instance)

Fill a builder with attribute values from the provided ArrayReducerOperator instance. Regular attribute values will be replaced with those from the given instance. Absent optional values will not replace present values.

Parameters:

instance - The instance from which to copy values

Returns:

this builder for use in a chained invocation

reducer

@CanIgnoreReturnValue
public final ImmutableArrayReducerOperator.Builder<T> reducer(BinaryOperator<T> reducer)

Initializes the value for the reducer attribute.

Parameters:

reducer - The value for reducer

Returns:

this builder for use in a chained invocation

arrayExpression

@CanIgnoreReturnValue
public final ImmutableArrayReducerOperator.Builder<T> arrayExpression(Expression arrayExpression)

Initializes the value for the arrayExpression attribute.

Parameters:

arrayExpression - The value for arrayExpression

Returns:

this builder for use in a chained invocation

placeholderValue

@CanIgnoreReturnValue
public final ImmutableArrayReducerOperator.Builder<T> placeholderValue(@Nullable
                                                                       @Nullable Object placeholderValue)

Initializes the value for the placeholderValue attribute.

If not set, this attribute will have a default value as returned by the initializer of placeholderValue.

Parameters:

placeholderValue - The value for placeholderValue (can be null)

Returns:

this builder for use in a chained invocation

build

public ImmutableArrayReducerOperator<T> build()

Builds a new ImmutableArrayReducerOperator.

Returns:

An immutable instance of ArrayReducerOperator

Throws:

IllegalStateException - if any required attributes are missing