public virtual bool Action(DropViewStatement stmt)
{
if (stmt.Views.Count > 0)
{
FixIdentifiers(stmt.Views[0], ObjectType.VIEW, stmt.Views[0].Identifiers);
}
return(false);
}
protected override void VisitDropViewStatement(DropViewStatement statement)
{
State.Write(Symbols.DROP);
State.Write(Symbols.VIEW);
if (statement.CheckExists)
{
State.Write(Symbols.IF);
State.Write(Symbols.EXISTS);
}
VisitNameToken(statement.Name);
}
void AlterView(Name tokenName, IStatement definitionStatement)
{
DropViewStatement dropViewStatement = Sql.DropView(tokenName, true);
VisitStatement(dropViewStatement);
State.WriteStatementTerminator();
CreateViewStatement createViewStatement = Sql.CreateView(tokenName, definitionStatement);
VisitStatement(createViewStatement);
State.WriteStatementTerminator();
}
void AlterView(Name tokenName, IStatement definitionStatement)
{
State.Write(Symbols.DO);
State.WriteCRLF();
State.Write(this.TempName);
State.WriteCRLF();
State.Write(Symbols.BEGIN);
DropViewStatement dropViewStatement = Sql.DropView(tokenName, true);
VisitStatement(dropViewStatement);
State.WriteStatementTerminator();
CreateViewStatement createViewStatement = Sql.CreateView(tokenName, definitionStatement);
VisitStatement(createViewStatement);
State.WriteStatementTerminator();
State.Write(Symbols.END);
State.WriteCRLF();
State.Write(this.TempName);
}
public override void Visit(DropViewStatement node) { this.action(node); }
public override void ExplicitVisit(DropViewStatement fragment)
{
_fragments.Add(fragment);
}
protected abstract void VisitDropViewStatement(DropViewStatement statement);