org.apache.tinkerpop.gremlin.process.traversal.step.util

Class MutablePath

java.lang.Object

org.apache.tinkerpop.gremlin.process.traversal.step.util.MutablePath

All Implemented Interfaces:

Serializable, Cloneable, Iterable<Object>, Path

Direct Known Subclasses:

DetachedPath, ReferencePath

public class MutablePath
extends Object
implements Path, Serializable

Author:

Marko A. Rodriguez (http://markorodriguez.com)

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.tinkerpop.gremlin.process.traversal.Path

Path.Exceptions

Field Summary

Fields

Modifier and Type	Field and Description
protected List<Set<String>>	labels
protected List<Object>	objects

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	MutablePath()

Method Summary

Modifier and Type	Method and Description
MutablePath	clone()
boolean	equals(Object other)
Path	extend(Object object, Set<String> labels) Add a new step to the path with an object and any number of associated labels.
Path	extend(Set<String> labels) Add labels to the head of the path.
<A> A	get(int index) Get the object associated with the specified index into the path.
<A> A	get(Pop pop, String label) Pop the object(s) associated with the label of the path.
int	hashCode()
boolean	hasLabel(String label) Return true if the path has the specified label, else return false.
<A> A	head() Get the head of the path.
boolean	isEmpty() Determine if the path is empty or not.
Iterator<Object>	iterator()
List<Set<String>>	labels() An ordered list of the labels associated with the path The set of labels for a particular step are ordered by the order in which Path.extend(Object, Set) was called.
static Path	make()
List<Object>	objects() An ordered list of the objects in the path.
Path	retract(Set<String> removeLabels) Remove labels from path.
int	size() Get the number of step in the path.
String	toString()

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.tinkerpop.gremlin.process.traversal.Path

forEach, get, isSimple, popEquals, stream

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Field Detail

objects

protected final List<Object> objects

labels

protected final List<Set<String>> labels

Constructor Detail

MutablePath

protected MutablePath()

Method Detail

make

public static Path make()

clone

public MutablePath clone()

Specified by:

clone in interface Path

Overrides:

clone in class Object

isEmpty

public boolean isEmpty()

Description copied from interface: Path

Determine if the path is empty or not.

Specified by:

isEmpty in interface Path

Returns:

whether the path is empty or not.

head

public <A> A head()

Description copied from interface: Path

Get the head of the path.

Specified by:

head in interface Path

Type Parameters:

A - the type of the head of the path

Returns:

the head of the path

size

public int size()

Description copied from interface: Path

Get the number of step in the path.

Specified by:

size in interface Path

Returns:

the size of the path

extend

public Path extend(Object object,
                   Set<String> labels)

Description copied from interface: Path

Add a new step to the path with an object and any number of associated labels.

Specified by:

extend in interface Path

Parameters:

object - the new head of the path

labels - the labels at the head of the path

Returns:

the extended path

extend

public Path extend(Set<String> labels)

Description copied from interface: Path

Add labels to the head of the path.

Specified by:

extend in interface Path

Parameters:

labels - the labels at the head of the path

Returns:

the path with added labels

retract

public Path retract(Set<String> removeLabels)

Description copied from interface: Path

Remove labels from path.

Specified by:

retract in interface Path

Parameters:

removeLabels - the labels to remove

Returns:

the path with removed labels

get

public <A> A get(int index)

Description copied from interface: Path

Get the object associated with the specified index into the path.

Specified by:

get in interface Path

Type Parameters:

A - the type of the object associated with the index

Parameters:

index - the index of the path

Returns:

the object associated with the index of the path

get

public <A> A get(Pop pop,
                 String label)

Description copied from interface: Path

Pop the object(s) associated with the label of the path.

Specified by:

get in interface Path

Type Parameters:

A - the type of the object associated with the label

Parameters:

pop - first for least recent, last for most recent, and all for all in a list

label - the label of the path

Returns:

the object associated with the label of the path

hasLabel

public boolean hasLabel(String label)

Description copied from interface: Path

Return true if the path has the specified label, else return false.

Specified by:

hasLabel in interface Path

Parameters:

label - the label to search for

Returns:

true if the label exists in the path

objects

public List<Object> objects()

Description copied from interface: Path

An ordered list of the objects in the path.

Specified by:

objects in interface Path

Returns:

the objects of the path

labels

public List<Set<String>> labels()

Description copied from interface: Path

An ordered list of the labels associated with the path The set of labels for a particular step are ordered by the order in which Path.extend(Object, Set) was called.

Specified by:

labels in interface Path

Returns:

the labels of the path

iterator

public Iterator<Object> iterator()

Specified by:

iterator in interface Iterable<Object>

Specified by:

iterator in interface Path

toString

public String toString()

Overrides:

toString in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object other)

Overrides:

equals in class Object