sk.uniba.euromath.document.schema.impl.del
Class DelNodesComputer

java.lang.Object
  sk.uniba.euromath.document.schema.impl.del.DelNodesComputer

public final class DelNodesComputer
extends Object

Serves for various valid node removal checking.

Author:

Martin Vysny

Constructor Summary

DelNodesComputer(SchemaImpl schema)
Constructor.

Method Summary

List<Element>	areNodesDeletable(com.sun.msv.grammar.ElementExp exp, Element e, Set<? extends Node> nodes) Detects if all nodes from the given set are deletable from given element.
boolean	isDeletable(Element e, com.sun.msv.grammar.ElementExp exp, sk.baka.ikslibs.ptr.DOMPoint start, sk.baka.ikslibs.ptr.DOMPoint end) Checks if given interval is removable from the document.

Methods inherited from class java.lang.Object

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

Constructor Detail

DelNodesComputer

public DelNodesComputer(SchemaImpl schema)

Constructor.

Parameters:

schema - the schema instance.

Method Detail

areNodesDeletable

public List<Element> areNodesDeletable(com.sun.msv.grammar.ElementExp exp,
                                       Element e,
                                       Set<? extends Node> nodes)

Detects if all nodes from the given set are deletable from given element. All nodes except text, cdata, element and entities are always deletable.

Parameters:

exp - the expression for the element.

e - we want to delete elements from this element

nodes - delete all these nodes.

Returns:

null if the nodes are not deletable, otherwise a list of elements that must be deleted aswell.

Throws:

DocumentValidityException - if the document isn't valid.

isDeletable

public boolean isDeletable(Element e,
                           com.sun.msv.grammar.ElementExp exp,
                           sk.baka.ikslibs.ptr.DOMPoint start,
                           sk.baka.ikslibs.ptr.DOMPoint end)

Checks if given interval is removable from the document.

Parameters:

e - the parent element

exp - the expression for this element

start - the start of the interval

end - the end of the interval

Returns:

true if these nodes are removable, false otherwise.