Class StatementSource

java.lang.Object

org.eclipse.rdf4j.query.algebra.AbstractQueryModelNode

org.eclipse.rdf4j.federated.algebra.StatementSource

All Implemented Interfaces:

Serializable, Cloneable, QueryModelNode, VariableScopeChange

public class StatementSource
extends AbstractQueryModelNode

A structure representing a relevant source for some expression.

Author:

Andreas Schwarte

See Also:

• Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static enum	StatementSource.StatementSourceType

Field Summary

Fields

Modifier and Type	Field	Description
protected String	id
protected StatementSource.StatementSourceType	type

Constructor Summary

Constructors

Constructor	Description
StatementSource(String name, StatementSource.StatementSourceType type)

Method Summary

Modifier and Type	Method	Description
boolean	equals(Object obj)	Returns true if this query model node and its children are recursively equal to o and its children.
String	getEndpointID()
String	getSignature()	Default implementation of QueryModelNode.getSignature() that prints the name of the node's class.
int	hashCode()
boolean	isLocal()
void	replaceChildNode(QueryModelNode current, QueryModelNode replacement)	Replaces one of the child nodes with a new node.
<X extends Exception> void	visit(QueryModelVisitor<X> visitor)	Visits this node.
<X extends Exception> void	visitChildren(QueryModelVisitor<X> visitor)	Visits the children of this node.

Methods inherited from class AbstractQueryModelNode

clone, getCardinality, getCostEstimate, getParentNode, getResultSizeActual, getResultSizeEstimate, getTotalTimeNanosActual, isCardinalitySet, isVariableScopeChange, nullEquals, replaceNodeInList, replaceWith, resetCardinality, setCardinality, setCostEstimate, setParentNode, setResultSizeActual, setResultSizeEstimate, setTotalTimeNanosActual, setVariableScopeChange, shouldCacheCardinality, toString

Methods inherited from class Object

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

Field Details

id

protected String id

type

protected StatementSource.StatementSourceType type

Constructor Details

StatementSource

public StatementSource(String name,
 StatementSource.StatementSourceType type)

Method Details

visit

public <X extends Exception> void visit(QueryModelVisitor<X> visitor)
                                 throws X

Description copied from interface: QueryModelNode

Visits this node. The node reports itself to the visitor with the proper runtime type.

Throws:

X

visitChildren

public <X extends Exception> void visitChildren(QueryModelVisitor<X> visitor)
                                         throws X

Description copied from interface: QueryModelNode

Visits the children of this node. The node calls QueryModelNode.visit(QueryModelVisitor) on all of its child nodes.

Throws:

X

replaceChildNode

public void replaceChildNode(QueryModelNode current,
 QueryModelNode replacement)

Description copied from interface: QueryModelNode

Replaces one of the child nodes with a new node.

Parameters:

current - The current child node.

replacement - The new child node.

getSignature

public String getSignature()

Description copied from class: AbstractQueryModelNode

Default implementation of QueryModelNode.getSignature() that prints the name of the node's class.

Specified by:

getSignature in interface QueryModelNode

Overrides:

getSignature in class AbstractQueryModelNode

Returns:

The node's signature, e.g. SLICE (offset=10, limit=10).

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object obj)

Description copied from interface: QueryModelNode

Returns true if this query model node and its children are recursively equal to o and its children.

Specified by:

equals in interface QueryModelNode

Overrides:

equals in class Object

getEndpointID

public String getEndpointID()

isLocal

public boolean isLocal()