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VarWithDistrib.java
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/* * Copyright (c) 2007 Massachusetts Institute of Technology * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in * the documentation and/or other materials provided with the * distribution. * * * Neither the name of the Massachusetts Institute of Technology * nor the names of its contributors may be used to endorse or * promote products derived from this software without specific * prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED * OF THE POSSIBILITY OF SUCH DAMAGE. */ package blog; import java.util.*;
| Abstract class for variables that have a distribution specified by the BLOG model. This includes number variables and random function application variables. |
public abstract class VarWithDistrib extends BasicVar {
| Creates a new VarWithDistrib with the given tuple of arguments or generating objects. |
protected VarWithDistrib(Object[] args) {
super(args);
}
Creates a new VarWithDistrib with the given tuple of arguments or
generating objects. If stable is true, then the
caller guarantees that the given args array will not
be modified externally.
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protected VarWithDistrib(Object[] args, boolean stable) {
super(args, stable);
}
| Creates a new VarWithDistrib with the given tuple of arguments or generating objects. |
protected VarWithDistrib(List argList) {
super(argList);
}
| Returns the dependency model for this variable. |
public abstract DependencyModel getDepModel();
| Returns the CPD and argument values in the first satisfied clause of this variable's dependency statement in the given context. Returns null if the partial world in this context is not complete enough to determine the first satisfied clause and its CPD arguments. |
public abstract DependencyModel.Distrib getDistrib(EvalContext context);
Returns the set of parents of this variable in the given partial
world. The parents are those random variables which, if they changed,
could change the first satisfied clause in this variable's
dependency statement or the values of CPD arguments in that clause.
This method yields a fatal error if the partial world is not complete
enough to determine this variable's parents.
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public Set getParents(PartialWorld w) {
ParentRecEvalContext context = new ParentRecEvalContext(w, true);
getDistrib(context);
return context.getParents();
}
public BasicVar getFirstUninstParent(PartialWorld w) {
ParentRecEvalContext context = new ParentRecEvalContext(w, false);
getDistrib(context);
return context.getLatestUninstParent();
}
public void ensureDetAndSupported(InstantiatingEvalContext instantiator) {
if (instantiator.isInstantiated(this)) {
getDistrib(instantiator); // ensure supported
} else {
// Calling getValue will cause the instantiator to find the
// distribution for this variable and instantiate it.
instantiator.getValue(this);
}
}
}
This file was generated on Tue Jun 08 17:53:36 PDT 2010 from file VarWithDistrib.java
by the ilog.language.tools.Hilite Java tool written by Hassan Aït-Kaci