Interface EntityCollection

public interface EntityCollection

This interface defines the methods used to access an ordered list of ChartEntity objects.

Method Summary
`void`	`add(ChartEntity entity)` Adds an entity to the collection.
`void`	`addAll(EntityCollection collection)` Adds the entities from another collection to this collection.
`void`	`clear()` Clears all entities.
`Collection`	`getEntities()` Returns the entities in an unmodifiable collection.
`ChartEntity`	`getEntity(double x, double y)` Returns an entity whose area contains the specified point.
`ChartEntity`	`getEntity(int index)` Returns an entity from the collection.
`int`	`getEntityCount()` Returns the entity count.
`Iterator`	`iterator()` Returns an iterator for the entities in the collection.

public void add(ChartEntity entity)

Adds an entity to the collection.
Parameters:
entity - the entity (null not permitted).

public void addAll(EntityCollection collection)

Adds the entities from another collection to this collection.
Parameters:
collection - the other collection.

public void clear()

Clears all entities.

public Collection getEntities()

Returns the entities in an unmodifiable collection.
Returns:
The entities.

public ChartEntity getEntity(double x,
                             double y)

Returns an entity whose area contains the specified point.
Parameters:
x - the x coordinate.
y - the y coordinate.
Returns:
The entity.

public ChartEntity getEntity(int index)

Returns an entity from the collection.
Parameters:
index - the index (zero-based).
Returns:
An entity.

public int getEntityCount()

Returns the entity count.
Returns:
The entity count.

public Iterator iterator()

Returns an iterator for the entities in the collection.
Returns:
An iterator.

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Method Summary