Deveel.Data.Sql.Statements.SqlStatement Class Reference

Represents the foundation class of SQL statements to be executed. More...

Inheritance diagram for Deveel.Data.Sql.Statements.SqlStatement:

Public Member Functions
ITable	Execute (IRequest context)
	Prepares and evaluates this statement into a tabular result. More...

Static Public Member Functions
static IEnumerable< SqlStatement >	Parse (string sqlSource)
	Parses a given string into one of more statements. More...
static IEnumerable< SqlStatement >	Parse (IContext context, string sqlSource)
	Parses a given string into one of more statements. More...
static IEnumerable< SqlStatement >	Parse (IContext context, SqlQuery query)

Protected Member Functions
	SqlStatement ()
	SqlStatement (ObjectData data)
virtual void	ExecuteStatement (ExecutionContext context)
virtual void	GetData (SerializeData data)

Package Functions
void	SetSource (SqlQuery query)

Properties
SqlQuery	SourceQuery [get, set]
	Gets the SqlQuery that is the origin of this statement. More...
bool	IsFromQuery [get, private set]
	Gets a boolean value indicating if this object was formed from the parsing of a SqlQuery or if it was manually created. More...
Properties inherited from Deveel.Data.Sql.Statements.IStatement
SqlQuery	SourceQuery [get]

Private Member Functions
void IExecutable.	Execute (ExecutionContext context)
void ISerializable.	GetData (SerializeData data)
ITable	PrepareAndExecute (IExpressionPreparer preparer, IRequest context)

Static Private Attributes
static readonly ISqlCompiler	DefaultCompiler = new SqlDefaultCompiler()

Detailed Description

Represents the foundation class of SQL statements to be executed.

Definition at line 32 of file SqlStatement.cs.

Constructor & Destructor Documentation

Deveel.Data.Sql.Statements.SqlStatement.SqlStatement ( )

inlineprotected

Definition at line 33 of file SqlStatement.cs.

                                 {
            
        }

Deveel.Data.Sql.Statements.SqlStatement.SqlStatement ( ObjectData  data )

inlineprotected

Definition at line 37 of file SqlStatement.cs.

                                                {
            SourceQuery = data.GetValue<SqlQuery>("SourceQuery");
            IsFromQuery = data.GetBoolean("IsFromQuery");
        }

Member Function Documentation

void IExecutable. Deveel.Data.Sql.Statements.SqlStatement.Execute ( ExecutionContext  context )

inlineprivate

Implements Deveel.Data.Sql.IExecutable.

Definition at line 62 of file SqlStatement.cs.

                                                           {
            ExecuteStatement(context);
        }

ITable Deveel.Data.Sql.Statements.SqlStatement.Execute ( IRequest  context )

inline

Prepares and evaluates this statement into a tabular result.

Parameters

context

The context used to prepare and evaluate the statement.

Returns

Returns a ITable object that contains the values resulting from the evaluation of the statement.

Exceptions

StatementPrepareException

Thrown if an error occurred while preparing the statement.

Definition at line 97 of file SqlStatement.cs.

                                                {
            return PrepareAndExecute(null, context);
        }

virtual void Deveel.Data.Sql.Statements.SqlStatement.ExecuteStatement ( ExecutionContext  context )

inlineprotectedvirtual

Reimplemented in Deveel.Data.Sql.Statements.InsertStatement.Prepared, Deveel.Data.Sql.Statements.CreateViewStatement.Prepared, Deveel.Data.Sql.Statements.CreateTableStatement.Prepared, Deveel.Data.Sql.Statements.SelectIntoStatement.Prepared, Deveel.Data.Sql.Statements.UpdateStatement.Prepared, Deveel.Data.Sql.Statements.DropTableStatement.Prepared, Deveel.Data.Sql.Statements.DeclareCursorStatement, Deveel.Data.Sql.Statements.AlterTableStatement, Deveel.Data.Sql.Statements.InsertSelectStatement.Prepared, Deveel.Data.Sql.Statements.OpenStatement, Deveel.Data.Sql.Statements.DropViewStatement.Prepared, Deveel.Data.Sql.Statements.GrantPrivilegesStatement, Deveel.Data.Sql.Statements.SelectStatement.Prepared, Deveel.Data.Sql.Statements.LoopControlStatement, Deveel.Data.Sql.Statements.AlterUserStatement, Deveel.Data.Sql.Statements.UpdateFromCursorStatement.Prepared, Deveel.Data.Sql.Statements.CreateUserStatement, Deveel.Data.Sql.Statements.UpdateQueryStatement.Prepared, Deveel.Data.Sql.Statements.RaiseStatement, Deveel.Data.Sql.Statements.CloseStatement, Deveel.Data.Sql.Statements.DeclareVariableStatement, Deveel.Data.Sql.Statements.CreateSchemaStatement, and Deveel.Data.Sql.Statements.DropSchemaStatement.

Definition at line 66 of file SqlStatement.cs.

                                                                          {
            throw new NotSupportedException(String.Format("The statement '{0}' does not support execution", GetType().Name));
        }

void ISerializable. Deveel.Data.Sql.Statements.SqlStatement.GetData ( SerializeData  data )

inlineprivate

Implements Deveel.Data.Serialization.ISerializable.

Definition at line 75 of file SqlStatement.cs.

                                                       {
            data.SetValue("SourceQuery", SourceQuery);
            data.SetValue("IsFromQuery", IsFromQuery);

            GetData(data);
        }

virtual void Deveel.Data.Sql.Statements.SqlStatement.GetData ( SerializeData  data )

inlineprotectedvirtual

Implements Deveel.Data.Serialization.ISerializable.

Reimplemented in Deveel.Data.Sql.Statements.CreateTableStatement.Prepared, Deveel.Data.Sql.Statements.CreateViewStatement.Prepared, Deveel.Data.Sql.Statements.InsertStatement.Prepared, Deveel.Data.Sql.Statements.UpdateStatement.Prepared, Deveel.Data.Sql.Statements.SelectIntoStatement.Prepared, Deveel.Data.Sql.Statements.DropTableStatement.Prepared, Deveel.Data.Sql.Statements.AlterTableStatement, Deveel.Data.Sql.Statements.OpenStatement, Deveel.Data.Sql.Statements.InsertSelectStatement.Prepared, Deveel.Data.Sql.Statements.DropViewStatement.Prepared, Deveel.Data.Sql.Statements.DeclareCursorStatement, Deveel.Data.Sql.Statements.LoopControlStatement, Deveel.Data.Sql.Statements.GrantPrivilegesStatement, Deveel.Data.Sql.Statements.SelectStatement.Prepared, Deveel.Data.Sql.Statements.UpdateQueryStatement.Prepared, Deveel.Data.Sql.Statements.AlterUserStatement, Deveel.Data.Sql.Statements.CreateUserStatement, Deveel.Data.Sql.Statements.CloseStatement, and Deveel.Data.Sql.Statements.RaiseStatement.

Definition at line 82 of file SqlStatement.cs.

                                                           {
            
        }

static IEnumerable<SqlStatement> Deveel.Data.Sql.Statements.SqlStatement.Parse ( string  sqlSource )

inlinestatic

Parses a given string into one of more statements.

Parameters

sqlSource

The input string to be parsed.

Returns

Returns a list of SqlStatement objects resulting from the parsing of the input string.

Exceptions

SqlParseException

Thrown if the input string is of an invalid format and cannot form into a valid statement.

Definition at line 133 of file SqlStatement.cs.

                                                                        {
            return Parse(null, sqlSource);
        }

static IEnumerable<SqlStatement> Deveel.Data.Sql.Statements.SqlStatement.Parse ( IContext  context, string  sqlSource  )

inlinestatic

Parses a given string into one of more statements.

Parameters

context
sqlSource	The input string to be parsed.

Returns

Returns a list of SqlStatement objects resulting from the parsing of the input string.

Exceptions

SqlParseException

Thrown if the input string is of an invalid format and cannot form into a valid statement.

Definition at line 150 of file SqlStatement.cs.

                                                                                          {
            return Parse(context, new SqlQuery(sqlSource));
        }

static IEnumerable<SqlStatement> Deveel.Data.Sql.Statements.SqlStatement.Parse ( IContext  context, SqlQuery  query  )

inlinestatic

Definition at line 158 of file SqlStatement.cs.

                                                                                        {
            if (query == null)
                throw new ArgumentNullException("query");

            var compiler = DefaultCompiler;

            if (context != null) {
                compiler = context.ResolveService<ISqlCompiler>();
            }

            try {
                var compileContext = new SqlCompileContext(context, query.Text);
                var result = compiler.Compile(compileContext);
                if (result.HasErrors)
                    throw new SqlParseException();

                var statements = result.Statements.Cast<SqlStatement>();

                foreach (var statement in statements) {
                    if (statement != null)
                        statement.SetSource(query);
                }

                return statements;
            } catch (SqlParseException) {
                throw;
            } catch (Exception ex) {
                throw new SqlParseException("The input string cannot be parsed into SQL Statements", ex);
            }
        }

ITable Deveel.Data.Sql.Statements.SqlStatement.PrepareAndExecute ( IExpressionPreparer  preparer, IRequest  context  )

inlineprivate

Definition at line 101 of file SqlStatement.cs.

                                                                                         {
            IExecutable prepared;

            try {
                prepared = this.Prepare(preparer, context);
            } catch (Exception ex) {
                throw new InvalidOperationException("Unable to prepare the statement for execution.", ex);
            }

            if (prepared == null)
                throw new InvalidOperationException();

            var exeContext = new ExecutionContext(context);
            prepared.Execute(exeContext);
            if (!exeContext.HasResult)
                return FunctionTable.ResultTable(context, 0);

            return exeContext.Result;
        }

void Deveel.Data.Sql.Statements.SqlStatement.SetSource ( SqlQuery  query )

inlinepackage

Definition at line 70 of file SqlStatement.cs.

                                                {
            SourceQuery = query;
            IsFromQuery = true;
        }

Member Data Documentation

readonly ISqlCompiler Deveel.Data.Sql.Statements.SqlStatement.DefaultCompiler = new SqlDefaultCompiler()

staticprivate

Definition at line 154 of file SqlStatement.cs.

Property Documentation

bool Deveel.Data.Sql.Statements.SqlStatement.IsFromQuery

getprivate set

Gets a boolean value indicating if this object was formed from the parsing of a SqlQuery or if it was manually created.

When this value is true the value returned by SourceQuery is not null.

See also

SourceQuery

Definition at line 60 of file SqlStatement.cs.

SqlQuery Deveel.Data.Sql.Statements.SqlStatement.SourceQuery

getset

Gets the SqlQuery that is the origin of this statement.

A single SQL query can form multiple SqlStatement objects.

See also

SqlQuery

Definition at line 49 of file SqlStatement.cs.

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The documentation for this class was generated from the following file:

• /var/calculate/remote/distfiles/egit-src/deveeldb.git/src/deveeldb/Deveel.Data.Sql.Statements/SqlStatement.cs