Package org.eclipse.rdf4j.query.algebra
Class ProjectionElem
- java.lang.Object
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- org.eclipse.rdf4j.query.algebra.AbstractQueryModelNode
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- org.eclipse.rdf4j.query.algebra.ProjectionElem
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- All Implemented Interfaces:
Serializable,Cloneable,GraphPatternGroupable,QueryModelNode,VariableScopeChange
public class ProjectionElem extends AbstractQueryModelNode
- See Also:
- Serialized Form
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Constructor Summary
Constructors Constructor Description ProjectionElem()ProjectionElem(String name)ProjectionElem(String sourceName, String targetName)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description ProjectionElemclone()Returns a (deep) clone of this query model node.booleanequals(Object other)Returns true if this query model node and its children are recursively equal to o and its children.StringgetSignature()Default implementation ofQueryModelNode.getSignature()that prints the name of the node's class.ExtensionElemgetSourceExpression()StringgetSourceName()StringgetTargetName()booleanhasAggregateOperatorInExpression()inthashCode()voidsetAggregateOperatorInExpression(boolean aggregateOperatorInExpression)voidsetSourceExpression(ExtensionElem sourceExpression)voidsetSourceName(String sourceName)voidsetTargetName(String targetName)<X extends Exception>
voidvisit(QueryModelVisitor<X> visitor)Visits this node.-
Methods inherited from class org.eclipse.rdf4j.query.algebra.AbstractQueryModelNode
getCostEstimate, getParentNode, getResultSizeActual, getResultSizeEstimate, getTotalTimeNanosActual, isGraphPatternGroup, isVariableScopeChange, nullEquals, replaceChildNode, replaceNodeInList, replaceWith, setCostEstimate, setGraphPatternGroup, setParentNode, setResultSizeActual, setResultSizeEstimate, setTotalTimeNanosActual, setVariableScopeChange, toString, visitChildren
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Method Detail
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getSourceName
public String getSourceName()
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setSourceName
public void setSourceName(String sourceName)
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getTargetName
public String getTargetName()
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setTargetName
public void setTargetName(String targetName)
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visit
public <X extends Exception> void visit(QueryModelVisitor<X> visitor) throws X extends Exception
Description copied from interface:QueryModelNodeVisits this node. The node reports itself to the visitor with the proper runtime type.- Throws:
X extends Exception
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getSignature
public String getSignature()
Description copied from class:AbstractQueryModelNodeDefault implementation ofQueryModelNode.getSignature()that prints the name of the node's class.- Specified by:
getSignaturein interfaceQueryModelNode- Overrides:
getSignaturein 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:QueryModelNodeReturns true if this query model node and its children are recursively equal to o and its children.- Specified by:
equalsin interfaceQueryModelNode- Overrides:
equalsin classObject
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clone
public ProjectionElem clone()
Description copied from interface:QueryModelNodeReturns a (deep) clone of this query model node. This method recursively clones the entire node tree, starting from this nodes.- Specified by:
clonein interfaceQueryModelNode- Overrides:
clonein classAbstractQueryModelNode- Returns:
- A deep clone of this query model node.
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hasAggregateOperatorInExpression
public boolean hasAggregateOperatorInExpression()
- Returns:
- Returns the aggregateOperatorInExpression.
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setAggregateOperatorInExpression
public void setAggregateOperatorInExpression(boolean aggregateOperatorInExpression)
- Parameters:
aggregateOperatorInExpression- The aggregateOperatorInExpression to set.
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getSourceExpression
public ExtensionElem getSourceExpression()
- Returns:
- Returns the sourceExpression.
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setSourceExpression
public void setSourceExpression(ExtensionElem sourceExpression)
- Parameters:
sourceExpression- The sourceExpression to set.
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