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QueryCondition Class |
QueryCondition objects are specialized ReadCondition objects that allow the application to also specify a filter on the locally available data.
Inheritance HierarchyNamespace: OpenDDSharp.DDS
Assembly: OpenDDSharp (in OpenDDSharp.dll) Version: 0.5.0.0
SyntaxThe QueryCondition type exposes the following members.
Properties| Name | Description | |
|---|---|---|
 | DataReader |
Gets the DataReader associated with the ReadCondition.
(Inherited from ReadCondition.) |
| InstanceStateMask |
Gets the set of instance-states that are taken into account to determine the trigger value of the ReadCondition.
These are the instance-states specified when the ReadCondition was created.
(Inherited from ReadCondition.) |
| QueryExpression |
Gets the queryexpression associated with the QueryCondition.
That is, the expression specified when the QueryCondition was created.
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| SampleStateMask |
Gets the set of sample-states that are taken into account to determine the trigger value of the ReadCondition.
These are the sample-states specified when the ReadCondition was created.
(Inherited from ReadCondition.) |
| TriggerValue |
Gets the trigger value of the Condition (Inherited from Condition.) |
| ViewStateMask |
Gets the set of view-states that are taken into account to determine the trigger value of the ReadCondition.
These are the view-states specified when the ReadCondition was created.
(Inherited from ReadCondition.) |
Methods| Name | Description | |
|---|---|---|
 | Equals | Determines whether the specified object is equal to the current object. (Inherited from Object.) |
| GetHashCode | Serves as the default hash function. (Inherited from Object.) |
| GetQueryParameters |
Gets the query parameters associated with the QueryCondition. That is, the parameters specified on the last
successful call to SetQueryParameters(String), or if SetQueryParameters(String) was never called, the arguments specified when the
QueryCondition was created.
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| GetType | Gets the Type of the current instance. (Inherited from Object.) |
| SetQueryParameters |
Changes the query parameters associated with the QueryCondition.
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| ToString | Returns a string that represents the current object. (Inherited from Object.) |
Remarks
The query is similar to an SQL WHERE clause and can be parameterized by arguments that are dynamically changeable by the SetQueryParameters(String) operation.
See Also