Package com.espertech.esper.runtime.client

Interface EPFireAndForgetService

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
EPFireAndForgetQueryResult	executeQuery(EPCompiled compiled)	Execute a fire-and-forget query.
EPFireAndForgetQueryResult	executeQuery(EPCompiled compiled, 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.
EPFireAndForgetQueryResult	executeQuery(EPFireAndForgetPreparedQueryParameterized parameterizedQuery)	Execute a fire-and-forget parameterized query.
EPFireAndForgetQueryResult	executeQuery(EPFireAndForgetPreparedQueryParameterized parameterizedQuery, ContextPartitionSelector[] selectors)	Execute a fire-and-forget parameterized query.
EPFireAndForgetPreparedQuery	prepareQuery(EPCompiled compiled)	Prepare an unparameterized fire-and-forget query before execution and for repeated execution.
EPFireAndForgetPreparedQueryParameterized	prepareQueryWithParameters(EPCompiled compiled)	Prepare a parameterized fire-and-forget query for repeated parameter setting and execution.

Method Details

executeQuery

EPFireAndForgetQueryResult executeQuery(EPCompiled compiled)

Execute a fire-and-forget query.

Parameters:

compiled - is the compiled EPL query to execute

Returns:

query result

executeQuery

EPFireAndForgetQueryResult executeQuery(EPCompiled compiled,
 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

EPFireAndForgetPreparedQuery prepareQuery(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

EPFireAndForgetPreparedQueryParameterized prepareQueryWithParameters(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

EPFireAndForgetQueryResult executeQuery(EPFireAndForgetPreparedQueryParameterized parameterizedQuery)

Execute a fire-and-forget parameterized query.

Parameters:

parameterizedQuery - contains the query and parameter values

Returns:

query result

executeQuery

EPFireAndForgetQueryResult executeQuery(EPFireAndForgetPreparedQueryParameterized parameterizedQuery,
 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