Deveel.Data.Sql.Query.QueryExpressionFrom.FromExpressionPreparer Class Reference

Inheritance diagram for Deveel.Data.Sql.Query.QueryExpressionFrom.FromExpressionPreparer:

Public Member Functions
	FromExpressionPreparer (QueryExpressionFrom fromSet)
bool	CanPrepare (SqlExpression expression)
	Verifies whether the instance of the interface can prepare the given expression. More...
SqlExpression	Prepare (SqlExpression expression)
	Returns the new translated object to be mutated from the given expression. More...

Private Attributes
readonly QueryExpressionFrom	fromSet

Detailed Description

Definition at line 314 of file QueryExpressionFrom.cs.

Constructor & Destructor Documentation

Deveel.Data.Sql.Query.QueryExpressionFrom.FromExpressionPreparer.FromExpressionPreparer ( QueryExpressionFrom  fromSet )

inline

Definition at line 317 of file QueryExpressionFrom.cs.

                                                                       {
                this.fromSet = fromSet;
            }

Member Function Documentation

bool Deveel.Data.Sql.Query.QueryExpressionFrom.FromExpressionPreparer.CanPrepare ( SqlExpression  expression )

inline

Verifies whether the instance of the interface can prepare the given expression.

Parameters

expression

The expression object to verify.

Returns

Returns true if this preparer will prepare the given object in an expression.

Implements Deveel.Data.Sql.Expressions.IExpressionPreparer.

Definition at line 321 of file QueryExpressionFrom.cs.

                                                             {
                return expression is SqlReferenceExpression;
            }

SqlExpression Deveel.Data.Sql.Query.QueryExpressionFrom.FromExpressionPreparer.Prepare ( SqlExpression  expression )

inline

Returns the new translated object to be mutated from the given expression.

Parameters

expression

Returns

Implements Deveel.Data.Sql.Expressions.IExpressionPreparer.

Definition at line 325 of file QueryExpressionFrom.cs.

                                                                   {
                var refName = ((SqlReferenceExpression) expression).ReferenceName;

                var reference = fromSet.QualifyReference(refName);
                if (reference is ObjectName)
                    return SqlExpression.Reference((ObjectName) reference);
                if (reference is QueryReference)
                    return new QueryReferenceExpression((QueryReference) reference);

                throw new InvalidOperationException();
            }

Member Data Documentation

readonly QueryExpressionFrom Deveel.Data.Sql.Query.QueryExpressionFrom.FromExpressionPreparer.fromSet

private

Definition at line 315 of file QueryExpressionFrom.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.Query/QueryExpressionFrom.cs