org.modeshape.jcr.value.basic
Class RootPath

java.lang.Object
  org.modeshape.jcr.value.basic.AbstractPath
      org.modeshape.jcr.value.basic.RootPath

All Implemented Interfaces:

Serializable, Comparable<Path>, Iterable<Path.Segment>, Path, Readable

@Immutable
public class RootPath
extends AbstractPath

Optimized implementation of Path that serves as the root path.

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from interface org.modeshape.jcr.value.Path

Path.Segment

Field Summary

static Path

INSTANCE

Fields inherited from class org.modeshape.jcr.value.basic.AbstractPath

EMPTY_PATH_ITERATOR, SELF_PATH

Fields inherited from interface org.modeshape.jcr.value.Path

DEFAULT_DECODER, DEFAULT_ENCODER, DEFAULT_INDEX, DELIMITER, DELIMITER_STR, IDENTIFIER_LEADING_TERMINAL, IDENTIFIER_TRAILING_TERMINAL, JSR283_DECODER, JSR283_ENCODER, NO_OP_DECODER, NO_OP_ENCODER, PARENT, PARENT_NAME, PARENT_SEGMENT, ROOT_NAME, ROOT_PATH, SELF, SELF_NAME, SELF_SEGMENT, URL_DECODER, URL_ENCODER

Method Summary

int	compareTo(Path other)
boolean	endsWith(Name nameOfLastSegment) Determine if the path's Path.getLastSegment() has the supplied name and no SNS index.
boolean	endsWith(Name nameOfLastSegment, int snsIndex) Determine if the path's Path.getLastSegment() has the supplied name and SNS index.
boolean	equals(Object obj)
Path	getAncestor(int degree) Return the path to the ancestor of the supplied degree.
Path	getCanonicalPath() Get the canonical form of this path.
Path	getCommonAncestor(Path that) Find the lowest common ancestor of this path and the supplied path.
Path.Segment	getLastSegment() Get the last segment in this path.
Path	getNormalizedPath() Get a normalized path with as many ".." segments and all "." resolved.
Path	getParent() Return the path to the parent, or this path if it is the root.
Path.Segment	getSegment(int index) Get the segment at the supplied index.
Path.Segment[]	getSegmentsArray() Obtain a copy of the segments in this path.
List<Path.Segment>	getSegmentsList() Get an unmodifiable list of the path segments.
protected Iterator<Path.Segment>	getSegmentsOfParent() Method used by AbstractPath.equals(Object) implementation to quickly get an Iterator over the segments in the parent.
String	getString() Get the string form of the object.
String	getString(NamespaceRegistry namespaceRegistry) Get the string form of the object, using the supplied namespace registry to convert any namespace URIs to prefixes.
String	getString(NamespaceRegistry namespaceRegistry, TextEncoder encoder) Get the encoded string form of the object, using the supplied namespace registry to convert the any namespace URIs to prefixes.
String	getString(NamespaceRegistry namespaceRegistry, TextEncoder encoder, TextEncoder delimiterEncoder) Get the encoded string form of the object, using the supplied namespace registry to convert the names' namespace URIs to prefixes and the supplied encoder to encode characters, and using the second delimiter to encode (or convert) the delimiter used between the namespace prefix and the local part of any names.
String	getString(TextEncoder encoder) Get the encoded string form of the object, using the supplied encoder to encode characters.
boolean	hasSameAncestor(Path that) Determine whether this path and the supplied path have the same immediate ancestor.
boolean	isAbsolute() Return whether this path is an absolute path.
boolean	isAncestorOf(Path descendant) Determine whether this path is an ancestor of the supplied path.
boolean	isAtOrAbove(Path other) Determine whether this path is the same as to or a ancestor of the supplied path.
boolean	isAtOrBelow(Path other) Determine whether this path is the same as to or a descendant of the supplied path.
boolean	isDescendantOf(Path ancestor) Determine whether this path is an descendant of the supplied path.
boolean	isNormalized() Return whether this path is normalized and contains no unnecessary "." segments and as few ".." segments as possible.
boolean	isRoot() Return whether this path represents the root path.
boolean	isSameAs(Path other) Determine whether this path represents the same as the supplied path.
Iterator<Path.Segment>	iterator()
Iterator<Path>	pathsFromRoot() Return an iterator that walks the paths from the root path down to this path.
Path	relativeToRoot() Obtain a path that is relative to the root node.
Path	resolve(Path relativePath) Get the absolute path by resolving the supplied relative (non-absolute) path against this absolute path.
int	size() Return the number of segments in this path.
Path	subpath(int beginIndex) Return a new path consisting of the segments starting at beginIndex index (inclusive).
Path	subpath(int beginIndex, int endIndex) Return a new path consisting of the segments between the beginIndex index (inclusive) and the endIndex index (exclusive).

Methods inherited from class org.modeshape.jcr.value.basic.AbstractPath

createSegmentsSubList, doGetString, hashCode, isIdentifier, isNormalized, relativeTo, resolveAgainst, toString

Methods inherited from class java.lang.Object

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

Field Detail

INSTANCE

public static final Path INSTANCE

Method Detail

getAncestor

public Path getAncestor(int degree)

Description copied from interface: Path

Return the path to the ancestor of the supplied degree. An ancestor of degree x is the path that is x levels up along the path. For example, degree = 0 returns this path, while degree = 1 returns the parent of this path, degree = 2 returns the grandparent of this path, and so on. Note that the result may be unexpected if this path is not normalized, as a non-normalized path contains ".." and "." segments.

Returns:

the ancestor of the supplied degree

getSegmentsOfParent

protected Iterator<Path.Segment> getSegmentsOfParent()

Description copied from class: AbstractPath

Method used by AbstractPath.equals(Object) implementation to quickly get an Iterator over the segments in the parent.

Specified by:

getSegmentsOfParent in class AbstractPath

Returns:

the iterator over the segments; never null, but may not have any elements

getCanonicalPath

public Path getCanonicalPath()

Description copied from interface: Path

Get the canonical form of this path. A canonical path has is absolute and Path.isNormalized().

Specified by:

getCanonicalPath in interface Path

Overrides:

getCanonicalPath in class AbstractPath

Returns:

the canonical path, or this object if it is already in its canonical form

getCommonAncestor

public Path getCommonAncestor(Path that)

Description copied from interface: Path

Find the lowest common ancestor of this path and the supplied path.

Specified by:

getCommonAncestor in interface Path

Overrides:

getCommonAncestor in class AbstractPath

Parameters:

that - the other path

Returns:

the lowest common ancestor, which may be the root path if there is no other.

getLastSegment

public Path.Segment getLastSegment()

Description copied from interface: Path

Get the last segment in this path.

Specified by:

getLastSegment in interface Path

Overrides:

getLastSegment in class AbstractPath

Returns:

the last segment, or null if the path is empty

endsWith

public boolean endsWith(Name nameOfLastSegment)

Description copied from interface: Path

Determine if the path's Path.getLastSegment() has the supplied name and no SNS index.

Specified by:

endsWith in interface Path

Overrides:

endsWith in class AbstractPath

Parameters:

nameOfLastSegment - the name

Returns:

return true if the supplied name is the name in the path's last segment (and there is no SNS index), or false otherwise

endsWith

public boolean endsWith(Name nameOfLastSegment,
                        int snsIndex)

Description copied from interface: Path

Determine if the path's Path.getLastSegment() has the supplied name and SNS index.

Specified by:

endsWith in interface Path

Overrides:

endsWith in class AbstractPath

Parameters:

nameOfLastSegment - the name

snsIndex - the SNS index

Returns:

return true if the path's last segment has the supplied name and SNS, or false otherwise

getNormalizedPath

public Path getNormalizedPath()

Description copied from interface: Path

Get a normalized path with as many ".." segments and all "." resolved. The relative path ".", however, will return itself as the normalized path, since it cannot be resolved any further.

Specified by:

getNormalizedPath in interface Path

Overrides:

getNormalizedPath in class AbstractPath

Returns:

the normalized path, or this object if this path is already normalized

relativeToRoot

public Path relativeToRoot()

Description copied from interface: Path

Obtain a path that is relative to the root node. This is equivalent to calling Path.relativeTo(Path) with the root path.

Specified by:

relativeToRoot in interface Path

Overrides:

relativeToRoot in class AbstractPath

Returns:

the relative path from the root node; never null

resolve

public Path resolve(Path relativePath)

Description copied from interface: Path

Get the absolute path by resolving the supplied relative (non-absolute) path against this absolute path.

Specified by:

resolve in interface Path

Overrides:

resolve in class AbstractPath

Parameters:

relativePath - the relative path that is to be resolved against this path

Returns:

the absolute and normalized path resolved from this path and the supplied absolute path

getParent

public Path getParent()

Description copied from interface: Path

Return the path to the parent, or this path if it is the root. This is an efficient operation that does not require copying any data.

Specified by:

getParent in interface Path

Overrides:

getParent in class AbstractPath

Returns:

the parent path, or this null if it is already the root

getSegment

public Path.Segment getSegment(int index)

Description copied from interface: Path

Get the segment at the supplied index.

Specified by:

getSegment in interface Path

Overrides:

getSegment in class AbstractPath

Parameters:

index - the index

Returns:

the segment

getSegmentsArray

public Path.Segment[] getSegmentsArray()

Description copied from interface: Path

Obtain a copy of the segments in this path. None of the segments are encoded.

Specified by:

getSegmentsArray in interface Path

Overrides:

getSegmentsArray in class AbstractPath

Returns:

the array of segments as a copy

getSegmentsList

public List<Path.Segment> getSegmentsList()

Description copied from interface: Path

Get an unmodifiable list of the path segments.

Returns:

the unmodifiable list of path segments; never null

getString

public String getString()

Description copied from interface: Readable

Get the string form of the object. A default encoder is used to encode characters.

Specified by:

getString in interface Readable

Overrides:

getString in class AbstractPath

Returns:

the encoded string

See Also:

Readable.getString(TextEncoder)

getString

public String getString(TextEncoder encoder)

Description copied from interface: Readable

Get the encoded string form of the object, using the supplied encoder to encode characters.

Specified by:

getString in interface Readable

Overrides:

getString in class AbstractPath

Parameters:

encoder - the encoder to use, or null if the default encoder should be used

Returns:

the encoded string

See Also:

Readable.getString()

getString

public String getString(NamespaceRegistry namespaceRegistry)

Description copied from interface: Readable

Get the string form of the object, using the supplied namespace registry to convert any namespace URIs to prefixes. A default encoder is used to encode characters.

Specified by:

getString in interface Readable

Overrides:

getString in class AbstractPath

Parameters:

namespaceRegistry - the namespace registry that should be used to obtain the prefix for any namespace URIs

Returns:

the encoded string

See Also:

Readable.getString(NamespaceRegistry,TextEncoder)

getString

public String getString(NamespaceRegistry namespaceRegistry,
                        TextEncoder encoder)

Description copied from interface: Readable

Get the encoded string form of the object, using the supplied namespace registry to convert the any namespace URIs to prefixes.

Specified by:

getString in interface Readable

Overrides:

getString in class AbstractPath

Parameters:

namespaceRegistry - the namespace registry that should be used to obtain the prefix for the namespace URIs

encoder - the encoder to use, or null if the default encoder should be used

Returns:

the encoded string

See Also:

Readable.getString(NamespaceRegistry)

getString

public String getString(NamespaceRegistry namespaceRegistry,
                        TextEncoder encoder,
                        TextEncoder delimiterEncoder)

Description copied from interface: Readable

Get the encoded string form of the object, using the supplied namespace registry to convert the names' namespace URIs to prefixes and the supplied encoder to encode characters, and using the second delimiter to encode (or convert) the delimiter used between the namespace prefix and the local part of any names.

Specified by:

getString in interface Readable

Overrides:

getString in class AbstractPath

Parameters:

namespaceRegistry - the namespace registry that should be used to obtain the prefix for the namespace URIs in the segment names

encoder - the encoder to use for encoding the local part and namespace prefix of any names, or null if the default encoder should be used

delimiterEncoder - the encoder to use for encoding the delimiter between the local part and namespace prefix of any names, or null if the standard delimiter should be used

Returns:

the encoded string

See Also:

Readable.getString(NamespaceRegistry), Readable.getString(NamespaceRegistry, TextEncoder)

hasSameAncestor

public boolean hasSameAncestor(Path that)

Description copied from interface: Path

Determine whether this path and the supplied path have the same immediate ancestor. In other words, this method determines whether the node represented by this path is a sibling of the node represented by the supplied path.

Specified by:

hasSameAncestor in interface Path

Overrides:

hasSameAncestor in class AbstractPath

Parameters:

that - the other path

Returns:

true if this path and the supplied path have the same immediate ancestor.

isAbsolute

public boolean isAbsolute()

Description copied from interface: Path

Return whether this path is an absolute path. A path is either relative or absolute. An absolute path starts with a "/".

Returns:

true if the path is absolute, or false otherwise

isAncestorOf

public boolean isAncestorOf(Path descendant)

Description copied from interface: Path

Determine whether this path is an ancestor of the supplied path. A path is considered an ancestor of another path if the the ancestor path appears in its entirety at the beginning of the descendant path, and where the descendant path contains at least one additional segment.

Specified by:

isAncestorOf in interface Path

Overrides:

isAncestorOf in class AbstractPath

Parameters:

descendant - the path that may be the descendant; may be null

Returns:

true if this path is an ancestor of the supplied path, or false otherwise

isAtOrAbove

public boolean isAtOrAbove(Path other)

Description copied from interface: Path

Determine whether this path is the same as to or a ancestor of the supplied path. This method is equivalent to (but may be more efficient than) calling isSame(other) || isAncestor(other), and is a convenience method that is identical to calling other.isAtOrBelow(this).

Specified by:

isAtOrAbove in interface Path

Overrides:

isAtOrAbove in class AbstractPath

Parameters:

other - the other path to compare with this path; may be null

Returns:

true if the paths are equivalent or if this path is considered an ancestor of the other path, or false otherwise

isAtOrBelow

public boolean isAtOrBelow(Path other)

Description copied from interface: Path

Determine whether this path is the same as to or a descendant of the supplied path. This method is equivalent to (but may be more efficient than) calling isSame(other) || isAncestor(other).

Specified by:

isAtOrBelow in interface Path

Overrides:

isAtOrBelow in class AbstractPath

Parameters:

other - the other path to compare with this path; may be null

Returns:

true if the paths are equivalent or if this path is considered a descendant of the other path, or false otherwise

isDescendantOf

public boolean isDescendantOf(Path ancestor)

Description copied from interface: Path

Determine whether this path is an descendant of the supplied path. A path is considered a descendant of another path if the the descendant path starts exactly with the entire ancestor path but contains at least one additional segment.

Specified by:

isDescendantOf in interface Path

Overrides:

isDescendantOf in class AbstractPath

Parameters:

ancestor - the path that may be the ancestor; may be null

Returns:

true if this path is an descendant of the supplied path, or false otherwise

isNormalized

public boolean isNormalized()

Description copied from interface: Path

Return whether this path is normalized and contains no unnecessary "." segments and as few ".." segments as possible. For example, the path "../a" is normalized, while "/a/b/c/../d" is not normalized.

Returns:

true if this path is normalized, or false otherwise

isRoot

public boolean isRoot()

Description copied from interface: Path

Return whether this path represents the root path.

Returns:

true if this path is the root path, or false otherwise

isSameAs

public boolean isSameAs(Path other)

Description copied from interface: Path

Determine whether this path represents the same as the supplied path. This is equivalent to calling this.compareTo(other) == 0 .

Specified by:

isSameAs in interface Path

Overrides:

isSameAs in class AbstractPath

Parameters:

other - the other path to compare with this path; may be null

Returns:

true if the paths are equivalent, or false otherwise

iterator

public Iterator<Path.Segment> iterator()

Specified by:

iterator in interface Iterable<Path.Segment>

Overrides:

iterator in class AbstractPath

pathsFromRoot

public Iterator<Path> pathsFromRoot()

Description copied from interface: Path

Return an iterator that walks the paths from the root path down to this path. This method always returns at least one path (the root returns an iterator containing itself).

Specified by:

pathsFromRoot in interface Path

Overrides:

pathsFromRoot in class AbstractPath

Returns:

the path iterator; never null

size

public int size()

Description copied from interface: Path

Return the number of segments in this path.

Returns:

the number of path segments

subpath

public Path subpath(int beginIndex)

Description copied from interface: Path

Return a new path consisting of the segments starting at beginIndex index (inclusive). This is equivalent to calling path.subpath(beginIndex,path.size()-1).

Specified by:

subpath in interface Path

Overrides:

subpath in class AbstractPath

Parameters:

beginIndex - the beginning index, inclusive.

Returns:

the specified subpath

subpath

public Path subpath(int beginIndex,
                    int endIndex)

Description copied from interface: Path

Return a new path consisting of the segments between the beginIndex index (inclusive) and the endIndex index (exclusive).

Specified by:

subpath in interface Path

Overrides:

subpath in class AbstractPath

Parameters:

beginIndex - the beginning index, inclusive.

endIndex - the ending index, exclusive.

Returns:

the specified subpath

compareTo

public int compareTo(Path other)

Specified by:

compareTo in interface Comparable<Path>

Overrides:

compareTo in class AbstractPath

equals

public boolean equals(Object obj)

Overrides:

equals in class AbstractPath