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public interface Element
An element is either a list or an atom. Each list has an operator and contains elements which are also elements. A list has a size and their elements can be accessed by their position. An atom carries textual data, has no operator and no size in the previous sense.
Method Summary | |
---|---|
Element |
copy()
Returns an identical object. |
boolean |
equals(java.lang.Object object)
Is this object equal to the given one? |
Atom |
getAtom()
Return this element as an Atom . |
ElementList |
getList()
Return this element as an ElementList. |
int |
hashCode()
Calculates the hash code. |
boolean |
isAtom()
Is this an atom? |
boolean |
isList()
Is this an ElementList ? |
Element |
replace(Element search,
Element replacement)
Creates and returns a copy of this object, but replaces anything that equals(java.lang.Object) argument
with a copy() of replacement . |
java.lang.String |
toString()
Get show this in String form. |
Method Detail |
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boolean isAtom()
true
if this is an instance of Atom
.Atom getAtom()
Atom
.
Atom
.
java.lang.ClassCastException
- This is no instance of Atom
.boolean isList()
ElementList
?
true
if this is an instance of ElementList
.ElementList getList()
ElementList
.
java.lang.ClassCastException
- This is no instance of ElementList
.boolean equals(java.lang.Object object)
equals
in class java.lang.Object
object
- to compare with
object
equal to this one?int hashCode()
hashCode
in class java.lang.Object
Element copy()
Element replace(Element search, Element replacement)
equals(java.lang.Object)
argument
with a copy()
of replacement
.
search
- Check for occurrence of this.replacement
- Replace with this.
java.lang.String toString()
String
form.
toString
in class java.lang.Object
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