Package org.eclipse.rdf4j.query.algebra
Class OrderElem
- java.lang.Object
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- org.eclipse.rdf4j.query.algebra.AbstractQueryModelNode
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- org.eclipse.rdf4j.query.algebra.OrderElem
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- All Implemented Interfaces:
Serializable
,Cloneable
,GraphPatternGroupable
,QueryModelNode
,VariableScopeChange
public class OrderElem extends AbstractQueryModelNode
- Author:
- Arjohn Kampman
- See Also:
- Serialized Form
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description OrderElem
clone()
Returns a (deep) clone of this query model node.boolean
equals(Object other)
Returns true if this query model node and its children are recursively equal to o and its children.ValueExpr
getExpr()
String
getSignature()
Default implementation ofQueryModelNode.getSignature()
that prints the name of the node's class.int
hashCode()
boolean
isAscending()
void
replaceChildNode(QueryModelNode current, QueryModelNode replacement)
Default implementation ofQueryModelNode.replaceChildNode(QueryModelNode, QueryModelNode)
that throws anIllegalArgumentException
indicating that current is not a child node of this node.void
setAscending(boolean ascending)
void
setExpr(ValueExpr expr)
<X extends Exception>
voidvisit(QueryModelVisitor<X> visitor)
Visits this node.<X extends Exception>
voidvisitChildren(QueryModelVisitor<X> visitor)
Dummy implementation ofQueryModelNode.visitChildren(org.eclipse.rdf4j.query.algebra.QueryModelVisitor<X>)
that does nothing.-
Methods inherited from class org.eclipse.rdf4j.query.algebra.AbstractQueryModelNode
getCardinality, getCostEstimate, getParentNode, getResultSizeActual, getResultSizeEstimate, getTotalTimeNanosActual, isCardinalitySet, isGraphPatternGroup, isVariableScopeChange, nullEquals, replaceNodeInList, replaceWith, resetCardinality, setCardinality, setCostEstimate, setGraphPatternGroup, setParentNode, setResultSizeActual, setResultSizeEstimate, setTotalTimeNanosActual, setVariableScopeChange, shouldCacheCardinality, toString
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Method Detail
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getExpr
public ValueExpr getExpr()
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setExpr
public void setExpr(ValueExpr expr)
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isAscending
public boolean isAscending()
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setAscending
public void setAscending(boolean ascending)
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visit
public <X extends Exception> void visit(QueryModelVisitor<X> visitor) throws X extends Exception
Description copied from interface:QueryModelNode
Visits this node. The node reports itself to the visitor with the proper runtime type.- Throws:
X extends Exception
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visitChildren
public <X extends Exception> void visitChildren(QueryModelVisitor<X> visitor) throws X extends Exception
Description copied from class:AbstractQueryModelNode
Dummy implementation ofQueryModelNode.visitChildren(org.eclipse.rdf4j.query.algebra.QueryModelVisitor<X>)
that does nothing. Subclasses should override this method when they have child nodes.- Specified by:
visitChildren
in interfaceQueryModelNode
- Overrides:
visitChildren
in classAbstractQueryModelNode
- Throws:
X extends Exception
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replaceChildNode
public void replaceChildNode(QueryModelNode current, QueryModelNode replacement)
Description copied from class:AbstractQueryModelNode
Default implementation ofQueryModelNode.replaceChildNode(QueryModelNode, QueryModelNode)
that throws anIllegalArgumentException
indicating that current is not a child node of this node.- Specified by:
replaceChildNode
in interfaceQueryModelNode
- Overrides:
replaceChildNode
in classAbstractQueryModelNode
- Parameters:
current
- The current child node.replacement
- The new child node.
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getSignature
public String getSignature()
Description copied from class:AbstractQueryModelNode
Default implementation ofQueryModelNode.getSignature()
that prints the name of the node's class.- Specified by:
getSignature
in interfaceQueryModelNode
- Overrides:
getSignature
in classAbstractQueryModelNode
- Returns:
- The node's signature, e.g. SLICE (offset=10, limit=10).
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equals
public boolean equals(Object other)
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 interfaceQueryModelNode
- Overrides:
equals
in classObject
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clone
public OrderElem clone()
Description copied from interface:QueryModelNode
Returns a (deep) clone of this query model node. This method recursively clones the entire node tree, starting from this nodes.- Specified by:
clone
in interfaceQueryModelNode
- Overrides:
clone
in classAbstractQueryModelNode
- Returns:
- A deep clone of this query model node.
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