Class MappingOpExtract<DDS extends DataObject,DC1 extends DataObject,DC2 extends DataObject,QL1 extends Query,QL2 extends Query>

java.lang.Object

se.liu.ida.hefquin.mappings.algebra.ops.MappingOpExtract<DDS,DC1,DC2,QL1,QL2>

All Implemented Interfaces:

MappingOperator

Direct Known Subclasses:

MappingOpExtractJSON

public class MappingOpExtract<DDS extends DataObject,DC1 extends DataObject,DC2 extends DataObject,QL1 extends Query,QL2 extends Query>
extends Object
implements MappingOperator

Field Summary

Fields

Modifier and Type	Field	Description
protected final Map<String,QL2>	P
protected final QL1	query
protected final SourceReference	sr
protected final SourceType<DDS,DC1,DC2,QL1,QL2>	type

Constructor Summary

Constructors

Constructor	Description
MappingOpExtract(SourceReference sr, SourceType<DDS,DC1,DC2,QL1,QL2> type, QL1 query, Map<String,QL2> P)

Method Summary

Modifier and Type	Method	Description
boolean	equals(Object o)
Set<String>	getAttributesOfP()
Iterable<Map.Entry<String,QL2>>	getEntriesOfP()
int	getExpectedNumberOfSubExpressions()	Returns the number of sub-expressions that a mapping expression is expected to have if it has this operator as its root operator.
QL1	getQuery()
int	getSizeOfP()
SourceReference	getSourceReference()
SourceType<DDS,DC1,DC2,QL1,QL2>	getSourceType()
int	hashCode()
String	toString()
void	visit(MappingOperatorVisitor visitor)

Methods inherited from class java.lang.Object

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

Field Details

sr

protected final SourceReference sr

type

protected final SourceType<DDS extends DataObject,DC1 extends DataObject,DC2 extends DataObject,QL1 extends Query,QL2 extends Query> type

query

protected final QL1 extends Query query

P

protected final Map<String,QL2 extends Query> P

Constructor Details

MappingOpExtract

public MappingOpExtract(SourceReference sr,
 SourceType<DDS,DC1,DC2,QL1,QL2> type,
 QL1 query,
 Map<String,QL2> P)

Method Details

getSourceReference

public SourceReference getSourceReference()

getSourceType

public SourceType<DDS,DC1,DC2,QL1,QL2> getSourceType()

getQuery

public QL1 getQuery()

getSizeOfP

public int getSizeOfP()

getAttributesOfP

public Set<String> getAttributesOfP()

getEntriesOfP

public Iterable<Map.Entry<String,QL2>> getEntriesOfP()

getExpectedNumberOfSubExpressions

public int getExpectedNumberOfSubExpressions()

Description copied from interface: MappingOperator

Returns the number of sub-expressions that a mapping expression is expected to have if it has this operator as its root operator. Hence, for nullary operators, this method returns 0; for unary operators, it returns 1; for binary operators, it returns 2. For n-ary operators (which can be applied to an arbitrary number of sub-expressions), this method returns Integer.MAX_VALUE.

Specified by:

getExpectedNumberOfSubExpressions in interface MappingOperator

visit

public void visit(MappingOperatorVisitor visitor)

Specified by:

visit in interface MappingOperator

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object o)

Overrides:

equals in class Object

toString

public String toString()

Overrides:

toString in class Object