public override ODataExpression VisitBinary(ODataBinaryExpression expr)
{
this.sqlBuilder.Append("(");
this.Visit(expr.Left);
switch (expr.ExpressionType)
{
case ExpressionType.AndAlso:
this.sqlBuilder.Append(" AND ");
break;
case ExpressionType.OrElse:
this.sqlBuilder.Append(" OR ");
break;
case ExpressionType.Equal:
this.sqlBuilder.Append(" == ");
break;
case ExpressionType.NotEqual:
this.sqlBuilder.Append(" != ");
break;
case ExpressionType.LessThan:
this.sqlBuilder.Append(" < ");
break;
case ExpressionType.LessThanOrEqual:
this.sqlBuilder.Append(" <= ");
break;
case ExpressionType.GreaterThan:
this.sqlBuilder.Append(" > ");
break;
case ExpressionType.GreaterThanOrEqual:
this.sqlBuilder.Append(" >= ");
break;
case ExpressionType.Add:
this.sqlBuilder.Append(" + ");
break;
case ExpressionType.Subtract:
this.sqlBuilder.Append(" - ");
break;
case ExpressionType.Multiply:
this.sqlBuilder.Append(" * ");
break;
case ExpressionType.Divide:
this.sqlBuilder.Append(" / ");
break;
case ExpressionType.Modulo:
this.sqlBuilder.Append(" % ");
break;
default:
throw new NotSupportedException();
}
this.Visit(expr.Right);
this.sqlBuilder.Append(")");
return expr;
}
public virtual ODataExpression VisitBinary(ODataBinaryExpression expr)
{
ODataExpression left = null;
ODataExpression right = null;
if (expr.Left != null)
{
left = this.Visit(expr.Left);
}
if (expr.Right != null)
{
right = this.Visit(expr.Right);
}
if (left != expr.Left || right != expr.Right)
{
return new ODataBinaryExpression(left, right);
}
return expr;
}
public static ODataExpression Divide(ODataExpression left, ODataExpression right)
{
ODataBinaryExpression bex = new ODataBinaryExpression(left, right);
bex.ExpressionType = ExpressionType.Divide;
return bex;
}
public static ODataExpression Multiply(ODataExpression left, ODataExpression right)
{
ODataBinaryExpression bex = new ODataBinaryExpression(left, right);
bex.ExpressionType = ExpressionType.Multiply;
return bex;
}
public static ODataExpression AndAlso(ODataExpression left, ODataExpression right)
{
ODataBinaryExpression bex = new ODataBinaryExpression(left, right);
bex.ExpressionType = ExpressionType.AndAlso;
return bex;
}
public static ODataExpression Subtract(ODataExpression left, ODataExpression right)
{
ODataBinaryExpression bex = new ODataBinaryExpression(left, right);
bex.ExpressionType = ExpressionType.Subtract;
return bex;
}
public static ODataExpression LessThanOrEqual(ODataExpression left, ODataExpression right)
{
ODataBinaryExpression bex = new ODataBinaryExpression(left, right);
bex.ExpressionType = ExpressionType.LessThanOrEqual;
return bex;
}
public static ODataExpression GreaterThan(ODataExpression left, ODataExpression right)
{
ODataBinaryExpression bex = new ODataBinaryExpression(left, right);
bex.ExpressionType = ExpressionType.GreaterThan;
return bex;
}
