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java.lang.Objectedu.lehigh.swat.hawk.storage.simpledb.Atom
public class Atom
A logical atom. An atom consists of a predicate and a set of arguments. The arguments may be variables or literals. If they are variables, then they are preceded by a question mark.
Constructor Summary | |
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Atom(java.lang.String predicate,
java.lang.String arg)
A shorthand constructor for an atom with a unary predicate. |
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Atom(java.lang.String predicate,
java.lang.String[] arguments)
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Atom(java.lang.String predicate,
java.lang.String arg1,
java.lang.String arg2)
A shorthand constructor for an atom with a binary predicate. |
Method Summary | |
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java.lang.String[] |
getArguments()
Return an array of the atom's arguments. |
java.lang.String |
getPredicate()
Return the name of the atom's predicate. |
java.lang.String |
toString()
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Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Constructor Detail |
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public Atom(java.lang.String predicate, java.lang.String[] arguments)
public Atom(java.lang.String predicate, java.lang.String arg1, java.lang.String arg2)
public Atom(java.lang.String predicate, java.lang.String arg)
Method Detail |
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public java.lang.String getPredicate()
public java.lang.String[] getArguments()
public java.lang.String toString()
toString
in class java.lang.Object
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