Package com.espertech.esper.runtime.client

Interface EPFireAndForgetService

All Known Implementing Classes:
EPFireAndForgetServiceImpl
public interface EPFireAndForgetService
Executes fire-and-forget non-continuous on-demand queries against named windows or tables.

Compile queries use the compile-query methods of the compiler.

  • Method Summary

    Modifier and Type
    Method
    Description
    com.espertech.esper.common.client.fireandforget.EPFireAndForgetQueryResult
    executeQuery(com.espertech.esper.common.client.EPCompiled compiled)
    Execute a fire-and-forget query.
    com.espertech.esper.common.client.fireandforget.EPFireAndForgetQueryResult
    executeQuery(com.espertech.esper.common.client.EPCompiled compiled, com.espertech.esper.common.client.context.ContextPartitionSelector[] selectors)
    Execute a fire-and-forget query for use with named windows and tables that have a context declared and that may therefore have multiple context partitions, allows to target context partitions for query execution selectively.
    com.espertech.esper.common.client.fireandforget.EPFireAndForgetQueryResult
    executeQuery(com.espertech.esper.common.client.fireandforget.EPFireAndForgetPreparedQueryParameterized parameterizedQuery)
    Execute a fire-and-forget parameterized query.
    com.espertech.esper.common.client.fireandforget.EPFireAndForgetQueryResult
    executeQuery(com.espertech.esper.common.client.fireandforget.EPFireAndForgetPreparedQueryParameterized parameterizedQuery, com.espertech.esper.common.client.context.ContextPartitionSelector[] selectors)
    Execute a fire-and-forget parameterized query.
    com.espertech.esper.common.client.fireandforget.EPFireAndForgetPreparedQuery
    prepareQuery(com.espertech.esper.common.client.EPCompiled compiled)
    Prepare an unparameterized fire-and-forget query before execution and for repeated execution.
    com.espertech.esper.common.client.fireandforget.EPFireAndForgetPreparedQueryParameterized
    prepareQueryWithParameters(com.espertech.esper.common.client.EPCompiled compiled)
    Prepare a parameterized fire-and-forget query for repeated parameter setting and execution.

  • Method Details

    • executeQuery

      com.espertech.esper.common.client.fireandforget.EPFireAndForgetQueryResult executeQuery(com.espertech.esper.common.client.EPCompiled compiled)
      Execute a fire-and-forget query.
      Parameters:
      compiled - is the compiled EPL query to execute
      Returns:
      query result

    • executeQuery

      com.espertech.esper.common.client.fireandforget.EPFireAndForgetQueryResult executeQuery(com.espertech.esper.common.client.EPCompiled compiled, com.espertech.esper.common.client.context.ContextPartitionSelector[] selectors)
      Execute a fire-and-forget query for use with named windows and tables that have a context declared and that may therefore have multiple context partitions, allows to target context partitions for query execution selectively.
      Parameters:
      compiled - is the compiled EPL query to execute
      selectors - selects context partitions to consider
      Returns:
      result

    • prepareQuery

      com.espertech.esper.common.client.fireandforget.EPFireAndForgetPreparedQuery prepareQuery(com.espertech.esper.common.client.EPCompiled compiled)
      Prepare an unparameterized fire-and-forget query before execution and for repeated execution.

      Call EPFireAndForgetPreparedQuery.close() when done executing queries.

      Parameters:
      compiled - is the compiled EPL query to prepare
      Returns:
      proxy to execute upon, that also provides the event type of the returned results

    • prepareQueryWithParameters

      com.espertech.esper.common.client.fireandforget.EPFireAndForgetPreparedQueryParameterized prepareQueryWithParameters(com.espertech.esper.common.client.EPCompiled compiled)
      Prepare a parameterized fire-and-forget query for repeated parameter setting and execution. Set all values on the returned holder then execute using executeQuery(EPFireAndForgetPreparedQueryParameterized).

      Call EPFireAndForgetPreparedQueryParameterized.close() when done executing queries.

      Parameters:
      compiled - is the compiled EPL query to prepare
      Returns:
      parameter holder upon which to set values

    • executeQuery

      com.espertech.esper.common.client.fireandforget.EPFireAndForgetQueryResult executeQuery(com.espertech.esper.common.client.fireandforget.EPFireAndForgetPreparedQueryParameterized parameterizedQuery)
      Execute a fire-and-forget parameterized query.
      Parameters:
      parameterizedQuery - contains the query and parameter values
      Returns:
      query result

    • executeQuery

      com.espertech.esper.common.client.fireandforget.EPFireAndForgetQueryResult executeQuery(com.espertech.esper.common.client.fireandforget.EPFireAndForgetPreparedQueryParameterized parameterizedQuery, com.espertech.esper.common.client.context.ContextPartitionSelector[] selectors)
      Execute a fire-and-forget parameterized query.
      Parameters:
      parameterizedQuery - contains the query and parameter values
      selectors - selects context partitions to consider
      Returns:
      query result