private static class Mappings.InverseMapping extends java.lang.Object implements Mapping
Mapping
into the inverse of itself.
If the mapping does not have an inverse -- for example, if a given source can have more than one target -- then the corresponding method call of the underlying mapping will raise a runtime exception.
Constructor and Description |
---|
InverseMapping(Mapping parent) |
Modifier and Type | Method and Description |
---|---|
void |
clear()
Removes all elements in the mapping.
|
MappingType |
getMappingType()
Returns the mapping type.
|
int |
getSource(int target) |
int |
getSourceCount()
Returns the number of sources.
|
int |
getSourceOpt(int target) |
int |
getTarget(int source)
Returns the target that a source maps to.
|
int |
getTargetCount()
Returns the number of targets.
|
int |
getTargetOpt(int source)
Returns the target that a source maps to, or -1 if it is not mapped.
|
Mapping |
inverse() |
boolean |
isIdentity()
Returns whether this mapping is the identity.
|
java.util.Iterator<IntPair> |
iterator()
Returns an iterator over the elements in this mapping.
|
void |
set(int source,
int target) |
int |
size()
Returns the number of elements in the mapping.
|
private final Mapping parent
InverseMapping(Mapping parent)
public java.util.Iterator<IntPair> iterator()
Mapping
This method is optional; implementations may throw
UnsupportedOperationException
.
public void clear()
Mapping
public int size()
Mapping
size
in interface Mapping
size
in interface Mappings.CoreMapping
public int getSourceCount()
Mapping
getSourceCount
in interface Mapping
getSourceCount
in interface Mappings.FunctionMapping
getSourceCount
in interface Mappings.SourceMapping
getSourceCount
in interface Mappings.TargetMapping
public int getTargetCount()
Mapping
getTargetCount
in interface Mapping
getTargetCount
in interface Mappings.SourceMapping
getTargetCount
in interface Mappings.TargetMapping
public MappingType getMappingType()
Mappings.CoreMapping
getMappingType
in interface Mapping
getMappingType
in interface Mappings.CoreMapping
getMappingType
in interface Mappings.FunctionMapping
getMappingType
in interface Mappings.SourceMapping
public boolean isIdentity()
Mapping
isIdentity
in interface Mapping
isIdentity
in interface Mappings.SourceMapping
public int getTargetOpt(int source)
Mappings.FunctionMapping
getTargetOpt
in interface Mappings.FunctionMapping
getTargetOpt
in interface Mappings.SourceMapping
getTargetOpt
in interface Mappings.TargetMapping
public int getTarget(int source)
Mappings.FunctionMapping
getTarget
in interface Mappings.FunctionMapping
getTarget
in interface Mappings.TargetMapping
source
- sourcepublic int getSource(int target)
getSource
in interface Mappings.SourceMapping
public int getSourceOpt(int target)
getSourceOpt
in interface Mappings.SourceMapping
getSourceOpt
in interface Mappings.TargetMapping
public Mapping inverse()
inverse
in interface Mappings.SourceMapping
inverse
in interface Mappings.TargetMapping
public void set(int source, int target)
set
in interface Mappings.TargetMapping
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