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package au.id.zancanaro.javacheck.statem;
import java.util.Map;
import java.util.NoSuchElementException;
public abstract class CommandValue<T> {
private final int id;
public CommandValue(int id) {
this.id = id;
}
public abstract boolean isAbstract();
public abstract T get();
public int getId() {
return id;
}
static class AbstractValue<T> extends CommandValue<T> {
public AbstractValue(int id) {
super(id);
}
@Override
public boolean isAbstract() {
return true;
}
@Override
public T get() {
throw new NoSuchElementException("Abstract values cannot be supplied");
}
}
static class ConcreteValue<T> extends CommandValue<T> {
private final Map<Integer, Object> values;
public ConcreteValue(int id, Map<Integer, Object> values) {
super(id);
this.values = values;
}
@Override
public boolean isAbstract() {
return true;
}
@Override
@SuppressWarnings("unchecked")
public T get() {
if (values.containsKey(getId())) {
return (T) values.get(getId());
} else {
throw new NoSuchElementException("Concrete values cannot be supplied prior to being calculated");
}
}
}
}
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