package org.sinnlabs.dbvim.evaluator; import java.util.HashMap; import java.util.Map; /** A static variable set. * <br>Here, static means that the values of variables are set before starting to evaluate the expressions. * @param <T> The type of the values of the variable (the one handled by the evaluator). * @author Jean-Marc Astesana */ public class StaticVariableSet<T> implements AbstractVariableSet<T> { private final Map<String, T> varToValue; /** Constructor. * <br>Builds a new empty variable set. */ public StaticVariableSet() { this.varToValue = new HashMap<String, T>(); } /** Gets the value of a variable. * @param variableName The name of the variable. * @return The value of the variable. */ public T get(String variableName) { return this.varToValue.get(variableName); } /** Sets a variable value. * @param variableName The variable name * @param value The variable value (null to remove a variable from the set). */ public void set(String variableName, T value) { this.varToValue.put(variableName, value); } }