Overview | Package | Class | Use | Tree | Deprecated | Index | Help
PREV CLASS NEXT CLASS | FRAMES NO FRAMES
SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD

## org.apache.openjpa.kernel
Class ExpressionStoreQuery.InMemoryExecutor

    java.lang.Object
      org.apache.openjpa.kernel.AbstractStoreQuery.AbstractExecutor
          org.apache.openjpa.kernel.ExpressionStoreQuery.AbstractExpressionExecutor
              org.apache.openjpa.kernel.ExpressionStoreQuery.InMemoryExecutor

All Implemented Interfaces:
  Serializable, StoreQuery.Executor

Enclosing class:
  ExpressionStoreQuery

    public static class ExpressionStoreQuery.InMemoryExecutor

extends ExpressionStoreQuery.AbstractExpressionExecutor
implements StoreQuery.Executor, Serializable

Runs the expression query in memory.

See Also:
  Serialized Form

Constructor Summary
`ExpressionStoreQuery.InMemoryExecutor(ExpressionStoreQuery q, ClassMetaData candidate, boolean subclasses, ExpressionParser parser, Object parsed, InMemoryExpressionFactory factory)`

Method Summary
`ResultObjectProvider` | `executeQuery(StoreQuery q, Object[] params, StoreQuery.Range range)` Return the result of executing this query with the given parameter values.
`String[]` | `getDataStoreActions(StoreQuery q, Object[] params, StoreQuery.Range range)` Return a description of the commands that will be sent to the datastore in order to execute the query.
`Object` | `getOrderingValue(StoreQuery q, Object[] params, Object resultObject, int orderIndex)` Extract the value of the `orderIndex`th ordering expression in `Query#getOrderingClauses` from the given result object.
`Class[]` | `getProjectionTypes(StoreQuery q)` Return the expected types of the projections used by this query, or an empty array if not a projection.
`QueryExpressions[]` | `getQueryExpressions()` Return the parsed query expressions for our candidate types.

Methods inherited from class org.apache.openjpa.kernel.ExpressionStoreQuery.AbstractExpressionExecutor
`assertNotContainer, getAccessPathMetaDatas, getAlias, getAscending, getOperation, getOrderedParameterTypes, getProjectionAliases, getRange, getResultClass, getResultShape, getUpdates, hasGrouping, isAggregate, isDistinct, isPacking, toParameterArray, validate`

Methods inherited from class org.apache.openjpa.kernel.AbstractStoreQuery.AbstractExecutor
`executeDelete, executeUpdate, getParameterTypes`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Methods inherited from interface org.apache.openjpa.kernel.StoreQuery.Executor
`executeDelete, executeUpdate, getAccessPathMetaDatas, getAlias, getAscending, getOperation, getOrderedParameterTypes, getParameterTypes, getProjectionAliases, getRange, getResultClass, getResultShape, getUpdates, hasGrouping, isAggregate, isDistinct, isPacking, toParameterArray, validate`

Constructor Detail

### ExpressionStoreQuery.InMemoryExecutor

    public ExpressionStoreQuery.InMemoryExecutor(ExpressionStoreQuery q,
                                                 ClassMetaData candidate,
                                                 boolean subclasses,
                                                 ExpressionParser parser,
                                                 Object parsed,
                                                 InMemoryExpressionFactory factory)

Method Detail

### getQueryExpressions

    public QueryExpressions[] getQueryExpressions()

  Description copied from interface: `StoreQuery.Executor`
  Return the parsed query expressions for our candidate types. The expressions are available only after query has been parsed.

  Specified by:
    `getQueryExpressions` in interface `StoreQuery.Executor`
  Overrides:
    `getQueryExpressions` in class `AbstractStoreQuery.AbstractExecutor`

### executeQuery

    public ResultObjectProvider executeQuery(StoreQuery q,
                                             Object[] params,
                                             StoreQuery.Range range)

  Description copied from interface: `StoreQuery.Executor`
  Return the result of executing this query with the given parameter values. If this query is a projection and this executor does not pack results itself, each element of the returned result object provider should be an object array containing the projection values.

  Specified by:
    `executeQuery` in interface `StoreQuery.Executor`
  See Also:
    `StoreQuery.Executor.isPacking(org.apache.openjpa.kernel.StoreQuery)`

### getDataStoreActions

    public String[] getDataStoreActions(StoreQuery q,
                                        Object[] params,
                                        StoreQuery.Range range)

  Description copied from interface: `StoreQuery.Executor`
  Return a description of the commands that will be sent to the datastore in order to execute the query.

  Specified by:
    `getDataStoreActions` in interface `StoreQuery.Executor`
  Overrides:
    `getDataStoreActions` in class `AbstractStoreQuery.AbstractExecutor`

### getOrderingValue

    public Object getOrderingValue(StoreQuery q,
                                   Object[] params,
                                   Object resultObject,
                                   int orderIndex)

  Description copied from interface: `StoreQuery.Executor`
  Extract the value of the `orderIndex`th ordering expression in `Query#getOrderingClauses` from the given result object. The result object will be an object from the result object provider returned from `StoreQuery.Executor.executeQuery(org.apache.openjpa.kernel.StoreQuery, java.lang.Object[], org.apache.openjpa.kernel.StoreQuery.Range)`. This method is used when several result lists have to be merged in memory. If this exeuctor's parent query supports executors on abstract or interface classes, this method will not be used.

  Specified by:
    `getOrderingValue` in interface `StoreQuery.Executor`
  Overrides:
    `getOrderingValue` in class `AbstractStoreQuery.AbstractExecutor`
  See Also:
    `StoreQuery.supportsAbstractExecutors()`

### getProjectionTypes

    public Class[] getProjectionTypes(StoreQuery q)

  Description copied from interface: `StoreQuery.Executor`
  Return the expected types of the projections used by this query, or an empty array if not a projection.

  Specified by:
    `getProjectionTypes` in interface `StoreQuery.Executor`
  Overrides:
    `getProjectionTypes` in class `ExpressionStoreQuery.AbstractExpressionExecutor`

Overview | Package | Class | Use | Tree | Deprecated | Index | Help
PREV CLASS NEXT CLASS | FRAMES NO FRAMES
SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD

Copyright © 2006-2013 Apache Software Foundation. All Rights Reserved.