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java.lang.Objectjava.util.AbstractCollection<Hold>
Spool0
@ThreadSafe public class Spool0
Null implementation of a spool; it is always empty and never unwinds.
Field Summary |
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Fields inherited from interface Spool |
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catcher0 |
Constructor Summary | |
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Spool0()
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Method Summary | |
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boolean |
add(Hold hold)
Does nothing. |
static Spool0 |
i()
A common instance of Spool0. |
boolean |
isUnwinding()
Returns true if the spool is unwinding (or unwound). |
Iterator<Hold> |
iterator()
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int |
size()
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boolean |
unwind()
Does nothing. |
boolean |
unwind(Catcher<Hold> catcher)
Does nothing. |
Methods inherited from class java.util.AbstractCollection |
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addAll, clear, contains, containsAll, isEmpty, remove, removeAll, retainAll, toArray, toArray, toString |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Methods inherited from interface java.util.Collection |
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addAll, clear, contains, containsAll, equals, hashCode, isEmpty, remove, removeAll, retainAll, toArray, toArray |
Constructor Detail |
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public Spool0()
Method Detail |
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public static Spool0 i()
public boolean add(Hold hold)
add
in interface Collection<Hold>
add
in interface Spool
add
in class AbstractCollection<Hold>
public Iterator<Hold> iterator()
iterator
in interface Iterable<Hold>
iterator
in interface Collection<Hold>
iterator
in class AbstractCollection<Hold>
public int size()
size
in interface Collection<Hold>
size
in class AbstractCollection<Hold>
public boolean isUnwinding()
Spool
isUnwinding
in interface Spool
public boolean unwind()
unwind
in interface Spool
public boolean unwind(Catcher<Hold> catcher)
unwind
in interface Spool
catcher
- for any errors or exceptions that occur
during unwinding
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