[This topic is pre-release documentation and is subject to change in future releases. Blank topics are included as placeholders.]
Utility class for matching filter parameters to indizes. Matches are indicated by the index net.esper.filter.FilterParamIndex
and the filter parameter net.esper.filter.FilterSpecParam featuring the same event property name and filter operator.
The following tables list the members exposed by the IndexHelper type.
Public Methods
Name | Description | |
---|---|---|
![]() | Equals | (Inherited from Object.) |
![]() ![]() | FindIndex | Find an index that matches one of the filter parameters passed.
The parameter type and index type match up if the property name and
filter operator are the same for the index and the filter parameter.
For instance, for a filter parameter of "count EQUALS 10", the index against property "count" with
operator type EQUALS will be returned, if present.
NOTE: The caller is expected to obtain locks, if necessary, on the collections passed in.
|
![]() ![]() | FindParameter | Determine among the passed in filter parameters any parameter that matches the given index on property name and
filter operator type. Returns null if none of the parameters matches the index.
|
![]() | GetHashCode | Serves as a hash function for a particular type. GetHashCode() is suitable for use in hashing algorithms and data structures like a hash table. (Inherited from Object.) |
![]() | GetType | Gets the Type of the current instance. (Inherited from Object.) |
![]() | ToString | (Inherited from Object.) |