Package com.gdblab.pathAlgebra.expressions

Class BaseExpression

java.lang.Object

com.gdblab.pathAlgebra.expressions.BaseExpression

All Implemented Interfaces:

java.io.Serializable, java.lang.Comparable<BaseExpression>

Direct Known Subclasses:

BaseExpression.Paths0, BaseExpression.Paths1, BaseExpression.PathsStar

public abstract class BaseExpression
extends java.lang.Object
implements java.io.Serializable, java.lang.Comparable<BaseExpression>

Base path expressions that extract paths from graph

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	BaseExpression.PartialVisitor<R>	Partial visitor over BaseExpression with a default BaseExpression.PartialVisitor.otherwise(com.gdblab.pathAlgebra.expressions.BaseExpression) branch.
static class	BaseExpression.Paths0	Paths0(G): all paths of length 0 (nodes)
static class	BaseExpression.Paths1	Paths1(G): all paths of length 1 (edges)
static class	BaseExpression.PathsStar	Paths*(G): all paths in graph (infinite without restrictions)
static interface	BaseExpression.Visitor<R>	Visitor over BaseExpression.

Field Summary

Fields

Modifier and Type	Field	Description
static Name	PATHS_STAR	Name of the com.gdblab.pathAlgebra.expressions.BaseExpression.pathsStar field.
static Name	PATHS0	Name of the com.gdblab.pathAlgebra.expressions.BaseExpression.paths0 field.
static Name	PATHS1	Name of the com.gdblab.pathAlgebra.expressions.BaseExpression.paths1 field.
static Name	TYPE_	Name of the com.gdblab.pathAlgebra.expressions.BaseExpression type.

Method Summary

Modifier and Type	Method	Description
abstract <R> R	accept(BaseExpression.Visitor<R> visitor)	Dispatch to visitor.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface java.lang.Comparable

compareTo

Field Detail

TYPE_

public static final Name TYPE_

Name of the com.gdblab.pathAlgebra.expressions.BaseExpression type.

PATHS0

public static final Name PATHS0

Name of the com.gdblab.pathAlgebra.expressions.BaseExpression.paths0 field.

PATHS1

public static final Name PATHS1

Name of the com.gdblab.pathAlgebra.expressions.BaseExpression.paths1 field.

PATHS_STAR

public static final Name PATHS_STAR

Name of the com.gdblab.pathAlgebra.expressions.BaseExpression.pathsStar field.

Method Detail

accept

public abstract <R> R accept(BaseExpression.Visitor<R> visitor)

Dispatch to visitor.