package org.whole.lang.sql.visitors;
import org.whole.lang.visitors.GenericTraversalFactory;
import org.whole.lang.visitors.IVisitor;
import org.whole.lang.visitors.IBinaryVisitor;
import org.whole.lang.visitors.IUnaryVisitor;
/**
* @generator Whole
*/
public class SQLTraversalFactory extends GenericTraversalFactory {
public static final SQLTraversalFactory instance = new SQLTraversalFactory();
private SQLTraversalFactory() {
}
protected IVisitor ensureSpecific(IVisitor visitor) {
if (visitor instanceof ISQLVisitor)
return visitor;
else
return new SQLForwardGenericVisitor(visitor);
}
public IVisitor failure() {
return new SQLFailureVisitor();
}
public IVisitor identity() {
return new SQLIdentityVisitor();
}
public IVisitor forwardStaged() {
return new SQLForwardStagedVisitor();
}
public IBinaryVisitor sequence(IVisitor visitor1, IVisitor visitor2) {
return new SQLSequenceVisitor(ensureSpecific(visitor1),
ensureSpecific(visitor2));
}
public IUnaryVisitor traverseAll(IVisitor visitor1) {
return new SQLTraverseAllVisitor(ensureSpecific(visitor1));
}
public IUnaryVisitor traverseAllChildren(IVisitor visitor1) {
return new SQLTraverseAllChildrenVisitor(ensureSpecific(visitor1));
}
public IUnaryVisitor traverseAllAdjacents(IVisitor visitor1) {
return new SQLTraverseAllAdjacentsVisitor(ensureSpecific(visitor1));
}
}