CollectorVisitor (Teiid 7.4.0.Final API)

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org.teiid.language.visitor
Class CollectorVisitor<T>

java.lang.Object
  org.teiid.language.visitor.CollectorVisitor<T>

All Implemented Interfaces:: LanguageObjectVisitor

public class CollectorVisitor<T>
extends java.lang.Object
implements LanguageObjectVisitor
extends java.lang.Object
implements LanguageObjectVisitor

This visitor can be used to collect all objects of a certain type in a language tree. Each visit method does an instanceof method to check whether the object is of the expected type.

Constructor Summary
`CollectorVisitor(java.lang.Class<T> type)`

Method Summary

static java.util.Collection<ColumnReference> collectElements(LanguageObject object)
This is a utility method for a common use of this visitor, which is to collect all elements in an object tree.

static java.util.Collection<NamedTable> collectGroups(LanguageObject object)
This is a utility method for a common use of this visitor, which is to collect all groups in an object tree.

static java.util.Set<NamedTable> collectGroupsUsedByElements(LanguageObject object)
This is a utility method for a common use of this visitor, which is to collect all groups used by all elements in an object tree.

static



<T> java.util.Collection<T>

collectObjects(java.lang.Class<T> type,
               LanguageObject object)

This is a utility method to instantiate and run the visitor in conjunction with a HierarchyVisitor to collect all objects of the specified type of the specified tree in the language object tree.

java.util.Collection<T> getCollectedObjects()

void visit(AggregateFunction obj)

void visit(AndOr obj)

void visit(Argument obj)

void visit(BatchedUpdates obj)

void visit(Call obj)

void visit(ColumnReference obj)

void visit(Comparison obj)

void visit(Delete obj)

void visit(DerivedColumn obj)

void visit(DerivedTable obj)

void visit(Exists obj)

void visit(ExpressionValueSource obj)

void visit(Function obj)

void visit(GroupBy obj)

void visit(In obj)

void visit(Insert obj)

void visit(IsNull obj)

void visit(IteratorValueSource obj)

void visit(Join obj)

void visit(Like obj)

void visit(Limit obj)

void visit(Literal obj)

void visit(NamedTable obj)

void visit(Not obj)

void visit(OrderBy obj)

void visit(ScalarSubquery obj)

void visit(SearchedCase obj)

void visit(SearchedWhenClause obj)

void visit(Select obj)

void visit(SetClause obj)

void visit(SetQuery obj)

void visit(SortSpecification obj)

void visit(SubqueryComparison obj)

void visit(SubqueryIn obj)

void visit(Update obj)

void visit(With obj)

void visit(WithItem obj)

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail