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java.lang.Object java.lang.Enum<OccurrenceIndicator> net.sf.saxon.s9api.OccurrenceIndicator
public enum OccurrenceIndicator
Represents one of the possible occurrence indicators in a SequenceType. The four standard values are ONE (no occurrence indicator), ZERO_OR_ONE (?), ZERO_OR_MORE (*), ONE_OR_MORE (+). In addition the value ZERO is supported: this is used only in the type empty-sequence() which matches an empty sequence and nothing else.
Enum Constant Summary | |
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ONE
|
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ONE_OR_MORE
|
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ZERO
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ZERO_OR_MORE
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ZERO_OR_ONE
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Method Summary | |
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boolean |
allowsMany()
Ask whether this occurrence indicator permits a sequence containing more than one item. |
boolean |
allowsZero()
Ask whether this occurrence indicator permits an empty sequence. |
protected int |
getCardinality()
|
protected static OccurrenceIndicator |
getOccurrenceIndicator(int cardinality)
|
boolean |
subsumes(OccurrenceIndicator other)
Ask whether one occurrence indicator subsumes another. |
static OccurrenceIndicator |
valueOf(String name)
Returns the enum constant of this type with the specified name. |
static OccurrenceIndicator[] |
values()
Returns an array containing the constants of this enum type, in the order they are declared. |
Methods inherited from class java.lang.Enum |
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clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf |
Methods inherited from class java.lang.Object |
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getClass, notify, notifyAll, wait, wait, wait |
Enum Constant Detail |
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public static final OccurrenceIndicator ZERO
public static final OccurrenceIndicator ZERO_OR_ONE
public static final OccurrenceIndicator ZERO_OR_MORE
public static final OccurrenceIndicator ONE
public static final OccurrenceIndicator ONE_OR_MORE
Method Detail |
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public static OccurrenceIndicator[] values()
for (OccurrenceIndicator c : OccurrenceIndicator.values()) System.out.println(c);
public static OccurrenceIndicator valueOf(String name)
name
- the name of the enum constant to be returned.
IllegalArgumentException
- if this enum type has no constant
with the specified name
NullPointerException
- if the argument is nullprotected int getCardinality()
protected static OccurrenceIndicator getOccurrenceIndicator(int cardinality)
public boolean allowsZero()
ZERO
, ZERO_OR_ONE
,
or ZERO_OR_MORE
public boolean allowsMany()
ZERO_OR_MORE
or ONE_OR_MORE
public boolean subsumes(OccurrenceIndicator other)
A.subsumes(B)
is true if every sequence that satisfies the occurrence
indicator B also satisfies the occurrence indicator A.
other
- The other occurrence indicator
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