| java.lang.Object
 org.griphyn.vdl.router.ListStack
| ListStack | | public class ListStack (Code) | | This class maintains a stack of classes that implement the
java.util.List interface.
author:
Jens-S. Vöckler
author:
Yong Zhao
version:
$Revision $ |
| Constructor Summary | |
| public | ListStack()
C'tor: Creates a new stack instance that is empty. |
| Method Summary | |
| public List | at(int index)
Accessor to a definition at a certain position. | | public List | flatten()
Flattens all vectors in the stack into one, starting with the
bottom-most vector. | | public boolean | isEmpty()
Accessor predicate: Determines, if the stack contains any elements. | | public List | pop()
Removes the tos, thus makeing the next-lower vector the tos. | | public void | push(List item)
Pushes a new bunch of things onto the stack. | | public int | size()
Accessor: Determines the number of elements in the stack. | | public List | tos()
Accessor: Grants access to the top of stack (tos) element. |
| ListStack | | public ListStack()(Code) | | C'tor: Creates a new stack instance that is empty.
|
| at | | public List at(int index)(Code) | | Accessor to a definition at a certain position. This method is
susceptible to exception thrown by the List for
inaccessible positions.
List at a given position in the stack. |
| flatten | | public List flatten()(Code) | | Flattens all vectors in the stack into one, starting with the
bottom-most vector.
List containing all vectors, may be empty. |
| isEmpty | | public boolean isEmpty()(Code) | | Accessor predicate: Determines, if the stack contains any elements.
true, if the stack is empty, false otherwise. |
| pop | | public List pop()(Code) | | Removes the tos, thus makeing the next-lower vector the tos.
the old top-of-stack.
throws:
EmptyStackException - if the stack did not have any elements. |
| push | | public void push(List item)(Code) | | Pushes a new bunch of things onto the stack.
Parameters:
item - is the new List to become new top-of-stack. |
| size | | public int size()(Code) | | Accessor: Determines the number of elements in the stack.
number of elements, or 0 for an empty stack. |
| tos | | public List tos()(Code) | | Accessor: Grants access to the top of stack (tos) element.
the current top of stack vector.
throws:
EmptyStackException - if the stack is empty. |
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