com.sri.oaa2.icl
Class ToLong

java.lang.Object
  |
  +--com.sri.oaa2.icl.ToLong

All Implemented Interfaces:

OaaPrologVisitor

public final class ToLong

extends java.lang.Object

implements OaaPrologVisitor

Constructor Summary

protected

ToLong()

Method Summary

long	from(IclTerm t) Convert an IclTerm to an long, if possible.
long	from(IclTerm t, long def) Convert an IclTerm to a long, if possible.
static ToLong	getInstance() Get an instance of a ToLong object.
java.lang.Object	visit(IclFloat node, java.lang.Object data)
java.lang.Object	visit(IclGroup node, java.lang.Object data)
java.lang.Object	visit(IclInt node, java.lang.Object data)
java.lang.Object	visit(IclList node, java.lang.Object data)
java.lang.Object	visit(IclStr node, java.lang.Object data)
java.lang.Object	visit(IclStruct node, java.lang.Object data)
java.lang.Object	visit(IclTerm node, java.lang.Object data)
java.lang.Object	visit(IclVar node, java.lang.Object data)

Methods inherited from class java.lang.Object

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

Constructor Detail

ToLong

protected ToLong()

Method Detail

visit

public final java.lang.Object visit(IclTerm node,
                                    java.lang.Object data)

Specified by:

visit in interface OaaPrologVisitor

visit

public final java.lang.Object visit(IclStruct node,
                                    java.lang.Object data)

Specified by:

visit in interface OaaPrologVisitor

visit

public final java.lang.Object visit(IclList node,
                                    java.lang.Object data)

Specified by:

visit in interface OaaPrologVisitor

visit

public final java.lang.Object visit(IclGroup node,
                                    java.lang.Object data)

Specified by:

visit in interface OaaPrologVisitor

visit

public final java.lang.Object visit(IclInt node,
                                    java.lang.Object data)

Specified by:

visit in interface OaaPrologVisitor

visit

public final java.lang.Object visit(IclFloat node,
                                    java.lang.Object data)

Specified by:

visit in interface OaaPrologVisitor

visit

public final java.lang.Object visit(IclStr node,
                                    java.lang.Object data)

Specified by:

visit in interface OaaPrologVisitor

visit

public final java.lang.Object visit(IclVar node,
                                    java.lang.Object data)

Specified by:

visit in interface OaaPrologVisitor

getInstance

public static final ToLong getInstance()

Get an instance of a ToLong object. This avoids multiple calls to the constructor. ToLong is thread safe.

from

public final long from(IclTerm t,
                       long def)

Convert an IclTerm to a long, if possible. If not, return the given default.

Returns:

long: the IclTerm as a long, or the default value

from

public final long from(IclTerm t)
                throws java.lang.UnsupportedOperationException

Convert an IclTerm to an long, if possible. If not, throw an UnsupportedOperationException.

Returns:

long: the term as a long

Throws:

java.lang.UnsupportedOperationException - if no such conversion possible