Class SPARQLUnionPatternImpl

java.lang.Object

se.liu.ida.hefquin.base.query.impl.SPARQLUnionPatternImpl

All Implemented Interfaces:

Query, SPARQLGraphPattern, SPARQLUnionPattern

public class SPARQLUnionPatternImpl
extends Object
implements SPARQLUnionPattern

Field Summary

Fields

Modifier and Type	Field	Description
protected final List<SPARQLGraphPattern>	subPatterns

Constructor Summary

Constructors

Constructor	Description
SPARQLUnionPatternImpl(List<SPARQLGraphPattern> subPatterns)
SPARQLUnionPatternImpl(SPARQLGraphPattern... subPatterns)

Method Summary

Modifier and Type	Method	Description
void	addSubPattern(SPARQLGraphPattern p)
SPARQLUnionPattern	applySolMapToGraphPattern(SolutionMapping sm)	Applies the given solution mapping to this graph pattern and returns the resulting graph pattern in which all occurrences of the variables bound by the given solution mapping are replaced by the RDF terms that the solution mappings assigns to these variables.
boolean	equals(Object other)
Set<TriplePattern>	getAllMentionedTPs()	Returns a set of all triple patterns that are contained within this graph pattern.
Set<org.apache.jena.sparql.core.Var>	getAllMentionedVariables()	Returns the set of all variables mentioned in this graph pattern, except for the variables that occur only in expressions (in FILTER or in BIND).
Set<org.apache.jena.sparql.core.Var>	getCertainVariables()	Returns the variables that are guaranteed to be bound in every solution mapping produced for this graph pattern.
ExpectedVariables	getExpectedVariables()	Returns the sets of variables that can be expected in the solution mappings produced for this graph pattern.
int	getNumberOfSubPatterns()	Returns the number of graph patterns that are combined via this union operator.
int	getNumberOfTermMentions()	Returns the number of times any RDF term is mentioned in this graph pattern (if the same term is mentioned multiple times, then each of these mentions is counted), but ignores terms mentions in expressions (in FILTER or in BIND).
int	getNumberOfVarMentions()	Returns the number of times any variable is mentioned in this graph pattern (if the same variable is mentioned multiple times, then each of these mentions is counted), but ignores variable mentions in expressions (in FILTER or in BIND).
Set<org.apache.jena.sparql.core.Var>	getPossibleVariables()	Returns the variables that may be bound in solution mappings produced for this graph pattern, but that are not guaranteed to be bound in every such solution mapping.
Iterable<SPARQLGraphPattern>	getSubPatterns()	Returns all graph patterns that are combined via this union operator.
SPARQLGraphPattern	getSubPatterns(int i)	Returns the i-th of the graph patterns that are combined via this union operator, where i starts at index 0 (zero).
int	hashCode()
SPARQLGraphPattern	mergeWith(SPARQLGraphPattern other)	If the given pattern is a SPARQLGroupPattern, then this method returns a SPARQLGroupPattern that consists of this pattern plus all the sub-patterns of the given SPARQLGroupPattern.
String	toString()

Methods inherited from class java.lang.Object

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

Methods inherited from interface se.liu.ida.hefquin.base.query.SPARQLGraphPattern

mergeWith, mergeWith

Field Details

subPatterns

protected final List<SPARQLGraphPattern> subPatterns

Constructor Details

SPARQLUnionPatternImpl

public SPARQLUnionPatternImpl(List<SPARQLGraphPattern> subPatterns)

SPARQLUnionPatternImpl

public SPARQLUnionPatternImpl(SPARQLGraphPattern... subPatterns)

Method Details

getNumberOfSubPatterns

public int getNumberOfSubPatterns()

Description copied from interface: SPARQLUnionPattern

Returns the number of graph patterns that are combined via this union operator.

Specified by:

getNumberOfSubPatterns in interface SPARQLUnionPattern

getSubPatterns

public Iterable<SPARQLGraphPattern> getSubPatterns()

Description copied from interface: SPARQLUnionPattern

Returns all graph patterns that are combined via this union operator.

Specified by:

getSubPatterns in interface SPARQLUnionPattern

getSubPatterns

public SPARQLGraphPattern getSubPatterns(int i)
                                  throws IndexOutOfBoundsException

Description copied from interface: SPARQLUnionPattern

Returns the i-th of the graph patterns that are combined via this union operator, where i starts at index 0 (zero). If the union operator has fewer sub-patterns, then an IndexOutOfBoundsException will be thrown.

Specified by:

getSubPatterns in interface SPARQLUnionPattern

Throws:

IndexOutOfBoundsException

addSubPattern

public void addSubPattern(SPARQLGraphPattern p)

toString

public String toString()

Overrides:

toString in class Object

equals

public boolean equals(Object other)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

getAllMentionedTPs

public Set<TriplePattern> getAllMentionedTPs()

Description copied from interface: SPARQLGraphPattern

Returns a set of all triple patterns that are contained within this graph pattern.

Specified by:

getAllMentionedTPs in interface SPARQLGraphPattern

getCertainVariables

public Set<org.apache.jena.sparql.core.Var> getCertainVariables()

Description copied from interface: SPARQLGraphPattern

Returns the variables that are guaranteed to be bound in every solution mapping produced for this graph pattern.

Specified by:

getCertainVariables in interface SPARQLGraphPattern

getPossibleVariables

public Set<org.apache.jena.sparql.core.Var> getPossibleVariables()

Description copied from interface: SPARQLGraphPattern

Returns the variables that may be bound in solution mappings produced for this graph pattern, but that are not guaranteed to be bound in every such solution mapping.

Specified by:

getPossibleVariables in interface SPARQLGraphPattern

getAllMentionedVariables

public Set<org.apache.jena.sparql.core.Var> getAllMentionedVariables()

Description copied from interface: SPARQLGraphPattern

Returns the set of all variables mentioned in this graph pattern, except for the variables that occur only in expressions (in FILTER or in BIND).

Specified by:

getAllMentionedVariables in interface SPARQLGraphPattern

getExpectedVariables

public ExpectedVariables getExpectedVariables()

Description copied from interface: SPARQLGraphPattern

Returns the sets of variables that can be expected in the solution mappings produced for this graph pattern. It holds that the ExpectedVariables.getCertainVariables() and the ExpectedVariables.getPossibleVariables() methods of the returned object return the same sets as returned by SPARQLGraphPattern.getCertainVariables() and SPARQLGraphPattern.getPossibleVariables(), respectively.

Specified by:

getExpectedVariables in interface SPARQLGraphPattern

getNumberOfVarMentions

public int getNumberOfVarMentions()

Description copied from interface: SPARQLGraphPattern

Returns the number of times any variable is mentioned in this graph pattern (if the same variable is mentioned multiple times, then each of these mentions is counted), but ignores variable mentions in expressions (in FILTER or in BIND).

Specified by:

getNumberOfVarMentions in interface SPARQLGraphPattern

getNumberOfTermMentions

public int getNumberOfTermMentions()

Description copied from interface: SPARQLGraphPattern

Returns the number of times any RDF term is mentioned in this graph pattern (if the same term is mentioned multiple times, then each of these mentions is counted), but ignores terms mentions in expressions (in FILTER or in BIND).

Specified by:

getNumberOfTermMentions in interface SPARQLGraphPattern

mergeWith

public SPARQLGraphPattern mergeWith(SPARQLGraphPattern other)

If the given pattern is a SPARQLGroupPattern, then this method returns a SPARQLGroupPattern that consists of this pattern plus all the sub-patterns of the given SPARQLGroupPattern. Otherwise, this method returns a SPARQLGroupPattern that consists of this pattern plus the other given pattern (whatever it is).

Specified by:

mergeWith in interface SPARQLGraphPattern

applySolMapToGraphPattern

public SPARQLUnionPattern applySolMapToGraphPattern(SolutionMapping sm)
                                             throws VariableByBlankNodeSubstitutionException

Description copied from interface: SPARQLGraphPattern

Applies the given solution mapping to this graph pattern and returns the resulting graph pattern in which all occurrences of the variables bound by the given solution mapping are replaced by the RDF terms that the solution mappings assigns to these variables.

Specified by:

applySolMapToGraphPattern in interface SPARQLGraphPattern

Specified by:

applySolMapToGraphPattern in interface SPARQLUnionPattern

Throws:

VariableByBlankNodeSubstitutionException - if one of the variables would be replaced by a blank node