Deveel.Data.Sql.Query.RangeSelectNode.RangeSetUpdater Class Reference

Inheritance diagram for Deveel.Data.Sql.Query.RangeSelectNode.RangeSetUpdater:

Public Member Functions
	RangeSetUpdater (IRequest context, ColumnInfo field, IndexRangeSet indexRangeSet)
IndexRangeSet	Update (SqlExpression expression)
override SqlExpression	VisitBinary (SqlBinaryExpression binaryEpression)
Public Member Functions inherited from Deveel.Data.Sql.Expressions.SqlExpressionVisitor
virtual SqlExpression	Visit (SqlExpression expression)
	Visits a given SQL expression. More...
virtual SqlExpression[]	VisitExpressionList (SqlExpression[] list)
	Visits a list of expressions given. More...
virtual SqlExpression	VisitFunctionCall (SqlFunctionCallExpression expression)
	Visits the expression that calls the function defined. More...
virtual SqlExpression	VisitUnary (SqlUnaryExpression unary)
virtual SqlExpression	VisitCast (SqlCastExpression castExpression)
virtual SqlExpression	VisitReference (SqlReferenceExpression reference)
virtual SqlExpression	VisitVariableReference (SqlVariableReferenceExpression reference)
virtual SqlExpression	VisitAssign (SqlAssignExpression assign)
virtual SqlExpression	VisitConstant (SqlConstantExpression constant)
virtual SqlExpression	VisitConditional (SqlConditionalExpression conditional)
virtual SqlExpression	VisitTuple (SqlTupleExpression expression)
virtual SqlExpression	VisitQuery (SqlQueryExpression query)

Private Attributes
IndexRangeSet	indexRangeSet
readonly IRequest	context
readonly ColumnInfo	field

Detailed Description

Definition at line 110 of file RangeSelectNode.cs.

Constructor & Destructor Documentation

Deveel.Data.Sql.Query.RangeSelectNode.RangeSetUpdater.RangeSetUpdater ( IRequest  context, ColumnInfo  field, IndexRangeSet  indexRangeSet  )

inline

Definition at line 115 of file RangeSelectNode.cs.

                                                                                                    {
                this.context = context;
                this.field = field;
                this.indexRangeSet = indexRangeSet;
            }

Member Function Documentation

IndexRangeSet Deveel.Data.Sql.Query.RangeSelectNode.RangeSetUpdater.Update ( SqlExpression  expression )

inline

Definition at line 121 of file RangeSelectNode.cs.

                                                                  {
                Visit(expression);
                return indexRangeSet;
            }

override SqlExpression Deveel.Data.Sql.Query.RangeSelectNode.RangeSetUpdater.VisitBinary ( SqlBinaryExpression  binaryEpression )

inlinevirtual

Parameters

binaryEpression

Returns

Reimplemented from Deveel.Data.Sql.Expressions.SqlExpressionVisitor.

Definition at line 126 of file RangeSelectNode.cs.

                                                                                           {
                var op = binaryEpression.ExpressionType;

                // Evaluate to an object
                var value = binaryEpression.Right.EvaluateToConstant(context, null);

                // If the evaluated object is not of a comparable type, then it becomes
                // null.
                var fieldType = field.ColumnType;
                if (!value.Type.IsComparable(fieldType))
                    value = DataObject.Null(fieldType);

                // Intersect this in the range set
                indexRangeSet = indexRangeSet.Intersect(op, value);

                return base.VisitBinary(binaryEpression);
            }

Member Data Documentation

readonly IRequest Deveel.Data.Sql.Query.RangeSelectNode.RangeSetUpdater.context

private

Definition at line 112 of file RangeSelectNode.cs.

readonly ColumnInfo Deveel.Data.Sql.Query.RangeSelectNode.RangeSetUpdater.field

private

Definition at line 113 of file RangeSelectNode.cs.

IndexRangeSet Deveel.Data.Sql.Query.RangeSelectNode.RangeSetUpdater.indexRangeSet

private

Definition at line 111 of file RangeSelectNode.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/RangeSelectNode.cs