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java.lang.ObjectJSHOP2.Precondition
JSHOP2.PreconditionForAll
public class PreconditionForAll
This class represents an iterator over all the possible bindings that can
satisfy a ForAll
logical expression at run time. Note that in
this case there is at most one such binding, and that is the empty binding.
Field Summary | |
---|---|
private Precondition |
consequence
The consequence of the ForAll logical expression this object
represents. |
private Term[] |
currentBinding
To keep track of the bindings seen so far. |
private Precondition |
premise
The premise of the ForAll logical expression this object
represents. |
private Term[] |
retVal
The array this object will return as its next binding. |
Fields inherited from class JSHOP2.Precondition |
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bindings, bindingsIdx |
Constructor Summary | |
---|---|
PreconditionForAll(Precondition premiseIn,
Precondition consequenceIn,
int vars)
To initialize this ForAll logical expression. |
Method Summary | |
---|---|
void |
bind(Term[] binding)
To bind the ForAll logical expression to some binding. |
protected Term[] |
nextBindingHelper()
To return the next satisfier for this ForAll logical
expression, which is either null or an empty binding. |
protected void |
resetHelper()
To reset this ForAll logical expression. |
Methods inherited from class JSHOP2.Precondition |
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nextBinding, reset, setComparator, setFirst |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Field Detail |
---|
private Precondition consequence
ForAll
logical expression this object
represents.
private Term[] currentBinding
private Precondition premise
ForAll
logical expression this object
represents.
private Term[] retVal
Constructor Detail |
---|
public PreconditionForAll(Precondition premiseIn, Precondition consequenceIn, int vars)
ForAll
logical expression.
premiseIn
- the premise of the ForAll
logical expression this
object represents.consequenceIn
- the consequence of the ForAll
logical expression
this object represents.vars
- the number of variables this logical expression has. This is used
to return a binding of the appropriate size.Method Detail |
---|
public void bind(Term[] binding)
ForAll
logical expression to some binding.
bind
in class Precondition
binding
- the given binding.protected Term[] nextBindingHelper()
ForAll
logical
expression, which is either null
or an empty binding.
nextBindingHelper
in class Precondition
protected void resetHelper()
ForAll
logical expression.
resetHelper
in class Precondition
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