Class PathBase<T, P extends Path<T>>

java.lang.Object

org.aksw.commons.path.core.PathBase<T,P>

Type Parameters:

T -

P -

All Implemented Interfaces:

Serializable, Comparable<Path<T>>, Iterable<Path<T>>, Path<T>

Direct Known Subclasses:

PathJson, PathStr

public class PathBase<T, P extends Path<T>>
extends Object
implements Path<T>, Serializable

Generic base implementation of the path interface. Internally keeps a flag for whether the path is absolute and a list of path segments. All methods of this class are implemented against the PathOps interface. Complex or verbose type expressions can be abstracted by extending this class as sketched below.

class MyPath extends PathBaseinvalid input: '<'ComplexTypeExpression, MyPath> {
   MyPath(PathOpsinvalid input: '<'T, P> pathOps, boolean isAbsolute, List segments) {
     super(pathOps, isAbsolute, segments);
   }
}

class MyPathOps implements PathOps {
  MyPath newPath(boolean isAbsolute, List segments) {
    return new MyPath(this, isAbsolute, segments);
  }

  // Implement remaining methods
}

Author:

raven

See Also:

• Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
protected boolean	isAbsolute
protected PathOps<T,P>	pathOps
protected List<T>	segments
protected List<T>	segmentsView

Constructor Summary

Constructors

Constructor	Description
PathBase(PathOps<T,P> pathOps, boolean isAbsolute, List<T> segments)

Method Summary

Modifier and Type	Method	Description
static <T> int	compareLists(List<T> a, List<T> b, Comparator<T> comparator)
int	compareTo(Path<T> other)
boolean	endsWith(Path<T> other)
boolean	equals(Object obj)
P	getFileName()
P	getName(int index)
int	getNameCount()
P	getParent()
PathOps<T,P>	getPathOps()
P	getRoot()
List<T>	getSegments()
Object	getSystem()	Returns an object such as the file system underlying this path.
int	hashCode()
boolean	isAbsolute()
protected boolean	isParentToken(T item)
Iterator<Path<T>>	iterator()
protected P	newPath(boolean isAbsolute, List<T> segments)
P	normalize()
static <T> List<T>	relativize(List<T> a, List<T> b, T parentToken)
P	relativize(Path<T> other)
P	resolve(Path<T> other)
P	resolve(T other)
P	resolveSibling(Path<T> other)
P	resolveSibling(T other)
P	resolveSiblingStr(String other)
P	resolveStr(String other)
boolean	startsWith(Path<T> other)
P	subpath(int beginIndex)	Experimental.
P	subpath(int beginIndex, int endIndex)
P	toAbsolutePath()
static <T> List<T>	toList(Path<T> path)
String	toString()

Methods inherited from class Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface Iterable

forEach, spliterator

Methods inherited from interface Path

toSegment

Field Details

isAbsolute

protected boolean isAbsolute

segments

protected transient List<T> segments

segmentsView

protected transient List<T> segmentsView

pathOps

protected PathOps<T, P extends Path<T>> pathOps

Constructor Details

PathBase

public PathBase(PathOps<T,P> pathOps,
 boolean isAbsolute,
 List<T> segments)

Method Details

newPath

protected P newPath(boolean isAbsolute,
 List<T> segments)

getPathOps

public PathOps<T,P> getPathOps()

toAbsolutePath

public P toAbsolutePath()

Specified by:

toAbsolutePath in interface Path<T>

isAbsolute

public boolean isAbsolute()

Specified by:

isAbsolute in interface Path<T>

getRoot

public P getRoot()

Specified by:

getRoot in interface Path<T>

getFileName

public P getFileName()

Specified by:

getFileName in interface Path<T>

getParent

public P getParent()

Specified by:

getParent in interface Path<T>

getNameCount

public int getNameCount()

Specified by:

getNameCount in interface Path<T>

getName

public P getName(int index)

Specified by:

getName in interface Path<T>

subpath

public P subpath(int beginIndex,
 int endIndex)

Specified by:

subpath in interface Path<T>

subpath

public P subpath(int beginIndex)

Description copied from interface: Path

Experimental. Not part of nio Path.

Specified by:

subpath in interface Path<T>

startsWith

public boolean startsWith(Path<T> other)

Specified by:

startsWith in interface Path<T>

endsWith

public boolean endsWith(Path<T> other)

Specified by:

endsWith in interface Path<T>

normalize

public P normalize()

Specified by:

normalize in interface Path<T>

isParentToken

protected boolean isParentToken(T item)

toList

public static <T> List<T> toList(Path<T> path)

resolveStr

public P resolveStr(String other)

Specified by:

resolveStr in interface Path<T>

resolve

public P resolve(Path<T> other)

Specified by:

resolve in interface Path<T>

relativize

public P relativize(Path<T> other)

Specified by:

relativize in interface Path<T>

toString

public String toString()

Overrides:

toString in class Object

relativize

public static <T> List<T> relativize(List<T> a,
 List<T> b,
 T parentToken)

getSegments

public List<T> getSegments()

Specified by:

getSegments in interface Path<T>

resolve

public P resolve(T other)

Specified by:

resolve in interface Path<T>

resolveSiblingStr

public P resolveSiblingStr(String other)

Specified by:

resolveSiblingStr in interface Path<T>

resolveSibling

public P resolveSibling(T other)

Specified by:

resolveSibling in interface Path<T>

resolveSibling

public P resolveSibling(Path<T> other)

Specified by:

resolveSibling in interface Path<T>

iterator

public Iterator<Path<T>> iterator()

Specified by:

iterator in interface Iterable<T>

compareTo

public int compareTo(Path<T> other)

Specified by:

compareTo in interface Comparable<T>

compareLists

public static <T> int compareLists(List<T> a,
 List<T> b,
 Comparator<T> comparator)

getSystem

public Object getSystem()

Description copied from interface: Path

Returns an object such as the file system underlying this path. Returns null if not applicable. Experimental.

Specified by:

getSystem in interface Path<T>

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object