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DeferredValue.java
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DeferredValue.java
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package aQute.bnd.osgi.resource;
import static java.util.Objects.requireNonNull;
import java.util.function.Supplier;
import aQute.bnd.memoize.Memoize;
class DeferredValue<T> implements Supplier<T> {
private final Class<T> type;
private final Supplier<? extends T> supplier;
private final int hashCode;
DeferredValue(Class<T> type, Supplier<? extends T> supplier, int hashCode) {
this.type = requireNonNull(type);
this.supplier = Memoize.supplier(supplier);
this.hashCode = hashCode;
}
@Override
public T get() {
return supplier.get();
}
Class<T> type() {
return type;
}
@Override
public int hashCode() {
return hashCode;
}
@SuppressWarnings("unchecked")
@Override
public boolean equals(Object obj) {
if (obj instanceof DeferredValue) {
obj = ((DeferredValue<T>) obj).get();
}
return get().equals(obj);
}
@Override
public String toString() {
return String.valueOf(get());
}
}