SqlObjectBase Class
Definition
Important
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main work horse for the sql enumerator. it generates the tsql for a level and comunicates with the other levels
[System.Runtime.InteropServices.ComVisible(false)]
public abstract class SqlObjectBase : Microsoft.SqlServer.Management.Sdk.Sfc.EnumObject, Microsoft.SqlServer.Management.Sdk.Sfc.ISqlFilterDecoderCallback[<System.Runtime.InteropServices.ComVisible(false)>]
type SqlObjectBase = class
inherit EnumObject
interface ISqlFilterDecoderCallbackPublic MustInherit Class SqlObjectBase
Inherits EnumObject
Implements ISqlFilterDecoderCallback- Inheritance
- Derived
- Attributes
- Implements
Constructors
| SqlObjectBase() |
Default contructor |
Properties
| ConditionedSqlList |
prefix, postfix etc, that must be added when certain fields are requested |
| ConnectionInfo |
conection object (Inherited from EnumObject) |
| Distinct |
the result must be distinct |
| Filter |
filter for this level (Inherited from EnumObject) |
| FixedProperties |
list of the properties for which the value is know e.g. Name is know if the fileter is in the form [@Name='fff'] or [@Name='fff' and ( xxxxx ) ] (Inherited from EnumObject) |
| Name |
name of the xpath level (Inherited from EnumObject) |
| OrderByRedirect |
used to translate an order by on post process fields to other, supporting fields |
| PostProcessList |
post processes for the level |
| PropertyLinkList |
links for properties |
| Request |
the request for this level, it is received from one level down or from user if it is the last level (Inherited from EnumObject) |
| RequestParentSelect |
Storeage for a parent select ( when we need the tsql for the parent level, usually to insert it in prefix ) |
| ResultTypes |
reports the ResultTypes supported by this level |
| SpecialQuery |
stores a query used to test a condition , for example that a table needed to resolve this level exists, if that fails then the empty set is returned rather then exception |
| SqlRequest |
the SqlRequest that this level must resolve |
| StatementBuilder |
The TSQL place holder + information that will be later transformed in TSQL |
| SupportsParameterization | |
| Urn |
this property lives only while a request is serviced (Inherited from EnumObject) |
Methods
| AddConditionals(String) |
add sql wich is necessary if the property: field, is requested |
| AddConditionalsJustPropDependencies(String) |
add whatever is required to support it |
| AddConstantForFilter(String) |
FilterDecoder reports that a constant is used in filter gives client a chance to modify it |
| AddFilterProperty(String) |
the xpath scanner has detected that this property is used in filter add whatever is required to support it, return value |
| AddLinkProperty(String) |
add whatever is required to support it, return value |
| AddOrderByAcrossDatabases() |
add the order by clause when the tsql runs across databases |
| AddOrderByInDatabase() |
add the order by clause when the tsql runs inside one database |
| AddOrderByProperty(String, Boolean) |
Add the information that the TSQL is ordered by the property name if overrideFlags is tru don't check if it is legal to use this property for order by |
| AddOrderByProperty(String) |
the xpath scanner has detected that this property is used in orderby add whatever is required to support it, return value |
| AddProperty(ObjectProperty) |
add to the collection of properties (Inherited from EnumObject) |
| AddPropertyForFilter(String) |
name property is used in filter |
| BeforeStatementExecuted(String) |
Allow subclasses to add anything to the statement |
| BuildStatement(EnumResult) |
build statement |
| ClearHits() |
clear all the conditional tsql which was activated for the fields in this request |
| ComputeFixedProperties() |
calculate the list of fixed properties ( their value can be deduced from the filter ) (Inherited from EnumObject) |
| FillData(ResultType, StringCollection, Object, StatementBuilder) |
n queries to prepare and the last one to fill the data |
| FillDataWithUseFailure(SqlEnumResult, ResultType) |
Get data from Sql Server. If we fail to get into a database then ignore that database |
| GetAliasPropertyName(String) |
get the property name as it will be aliased in the result set to the user (Inherited from EnumObject) |
| GetData(EnumResult) |
fill StatementBuilder with the information for this level |
| GetFixedStringProperty(String, Boolean) |
get a fixed ( with known value from filter ) property of type string (Inherited from EnumObject) |
| GetProperties(ObjectPropertyUsages) |
returns the object properties by usage (Inherited from EnumObject) |
| GetProperty(String, ObjectPropertyUsages) |
accessor for a property by name and usage ( internal use ) (Inherited from EnumObject) |
| GetSqlProperty(String, ObjectPropertyUsages) |
get the property field if it is legal for the usage, else throw |
| GetUrnProperties() |
until we have a formal way so that each object declares which properties it uses for urn try this best guess aproach (Inherited from EnumObject) |
| Initialize(Object, XPathExpressionBlock) |
initialize this level (Inherited from EnumObject) |
| IntegrateParentResult(EnumResult) |
combine StatementBuilder from this level with what was received in the result from the parent level |
| PostProcess(EnumResult) |
execute any PostProcess actions |
| ResolveComputedField(String) |
a computed field has been used. return its dynamically calculated value |
| ResolveLocalLinkLinks() |
resolve all links which can be resolved at the local level |
| RestoreInitialState() |
get the object in a clean state remove whatever was changed to resolve the current request |
| RetrieveParentRequest() |
Retrive the request that will be sent to the parent level. we must comunicate wht info we need from the parent level here |
| StoreInitialState() |
pre initialize the object with the static info. ( resolve local links ) |
| TryGetProperty(String, ObjectPropertyUsages) |
accessor for a property by name and usage ( internal use ) (Inherited from EnumObject) |