y.layout.hierarchic.incremental
Interface Layers

public interface Layers

Container class that manages multiple Layer instances. HierarchicLayouter creates instances of this class and passes them to the instances that handle the various subtasks of the layout process during automatic layout. Method createInstance() can be used like a factory method to obtain temporary Layers instances.

See Also:

Layer

Method Summary

Layers	createInstance() Creates a new and empty Layers instance that can be used on the same graph instance for temporary results.
Layer	getLayer(int i) Returns a layer by index
Layer	insert(byte type, int position) Creates, inserts and returns a layer of a given type.
void	remove(int index) Removes a layer by index.
int	size() Returns the number of layers in this instance

Method Detail

size

int size()

Returns the number of layers in this instance

Returns:

the number of layers

getLayer

Layer getLayer(int i)

Returns a layer by index

Parameters:

i - the zero-based index

Returns:

the layer at the given index

insert

Layer insert(byte type,
             int position)

Creates, inserts and returns a layer of a given type.

Parameters:

type - a type constant as defined in the Layer interface

position - the position where this layer will be inserted

Returns:

a newly created read-to-use layer instance

remove

void remove(int index)

Removes a layer by index.

Parameters:

index - the zero-based index of the layer

createInstance

Layers createInstance()

Creates a new and empty Layers instance that can be used on the same graph instance for temporary results.

Returns:

an instance of the same type as the current instance. It will be empty initially.