de.flapdoodle.graph

Class ImmutableEdge.Builder<V,E>

java.lang.Object

de.flapdoodle.graph.ImmutableEdge.Builder<V,E>

Enclosing class:

ImmutableEdge<V,E>

public static final class ImmutableEdge.Builder<V,E>
extends Object

Builds instances of type ImmutableEdge. 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 and Description
ImmutableEdge<V,E>	build() Builds a new ImmutableEdge.
ImmutableEdge.Builder<V,E>	edge(E edge) Initializes the value for the edge attribute.
ImmutableEdge.Builder<V,E>	end(V end) Initializes the value for the end attribute.
ImmutableEdge.Builder<V,E>	from(Edge<V,E> instance) Fill a builder with attribute values from the provided Edge instance.
ImmutableEdge.Builder<V,E>	start(V start) Initializes the value for the start attribute.

Methods inherited from class java.lang.Object

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

Method Detail

from

public final ImmutableEdge.Builder<V,E> from(Edge<V,E> instance)

Fill a builder with attribute values from the provided Edge 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

start

public final ImmutableEdge.Builder<V,E> start(V start)

Initializes the value for the start attribute.

Parameters:

start - The value for start

Returns:

this builder for use in a chained invocation

end

public final ImmutableEdge.Builder<V,E> end(V end)

Initializes the value for the end attribute.

Parameters:

end - The value for end

Returns:

this builder for use in a chained invocation

edge

public final ImmutableEdge.Builder<V,E> edge(E edge)

Initializes the value for the edge attribute.

Parameters:

edge - The value for edge

Returns:

this builder for use in a chained invocation

build

public ImmutableEdge<V,E> build()

Builds a new ImmutableEdge.

Returns:

An immutable instance of Edge

Throws:

IllegalStateException - if any required attributes are missing