Package com.gdblab.pathAlgebra.expressions

Class QueryExpression

java.lang.Object

com.gdblab.pathAlgebra.expressions.QueryExpression

All Implemented Interfaces:

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

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

Complete query with path algebra and result projection

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
static Name	PATH_EXPRESSION	Name of the com.gdblab.pathAlgebra.expressions.QueryExpression.pathExpression field.
PathExpression	pathExpression
static Name	RESULT_PROJECTION	Name of the com.gdblab.pathAlgebra.expressions.QueryExpression.resultProjection field.
Optional<ResultProjection>	resultProjection
static Name	TYPE_	Name of the com.gdblab.pathAlgebra.expressions.QueryExpression type.

Constructor Summary

Constructors

Constructor	Description
QueryExpression(PathExpression pathExpression, Optional<ResultProjection> resultProjection)	Constructs an immutable QueryExpression.

Method Summary

Modifier and Type	Method	Description
int	compareTo(QueryExpression other)
boolean	equals(java.lang.Object other)
int	hashCode()
QueryExpression	withPathExpression(PathExpression pathExpression)	Returns a copy of this QueryExpression with pathExpression replaced.
QueryExpression	withResultProjection(Optional<ResultProjection> resultProjection)	Returns a copy of this QueryExpression with resultProjection replaced.

Methods inherited from class java.lang.Object

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

Field Detail

TYPE_

public static final Name TYPE_

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

PATH_EXPRESSION

public static final Name PATH_EXPRESSION

Name of the com.gdblab.pathAlgebra.expressions.QueryExpression.pathExpression field.

RESULT_PROJECTION

public static final Name RESULT_PROJECTION

Name of the com.gdblab.pathAlgebra.expressions.QueryExpression.resultProjection field.

pathExpression

public final PathExpression pathExpression

resultProjection

public final Optional<ResultProjection> resultProjection

Constructor Detail

QueryExpression

public QueryExpression(PathExpression pathExpression,
                       Optional<ResultProjection> resultProjection)

Constructs an immutable QueryExpression.

Method Detail

equals

public boolean equals(java.lang.Object other)

Overrides:

equals in class java.lang.Object

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

compareTo

public int compareTo(QueryExpression other)

Specified by:

compareTo in interface java.lang.Comparable<QueryExpression>

withPathExpression

public QueryExpression withPathExpression(PathExpression pathExpression)

Returns a copy of this QueryExpression with pathExpression replaced.

withResultProjection

public QueryExpression withResultProjection(Optional<ResultProjection> resultProjection)

Returns a copy of this QueryExpression with resultProjection replaced.