QueryImpl (OpenJPA Parent POM 2.4.2 API)

java.lang.Object
- org.apache.openjpa.kernel.QueryImpl

All Implemented Interfaces:

Serializable, Query, QueryContext, QueryFlushModes, QueryOperations

Direct Known Subclasses:

DistributedQueryImpl
```
public class QueryImpl
extends Object
implements Query
```
Implementation of the Query interface.

Author:

Abe White

See Also:
Serialized Form

Nested Class Summary

Nested Classes
Modifier and Type	Class and Description
`protected static class`	`QueryImpl.Compilation` Struct of compiled query properties.
`static class`	`QueryImpl.PackingResultObjectProvider` Result object provider that packs results before returning them.
`class`	`QueryImpl.RemoveOnCloseResultList` Result list that removes itself from the query's open result list when it is closed.

Field Summary
- Fields inherited from interface org.apache.openjpa.kernel.QueryOperations
  OP_DELETE, OP_SELECT, OP_UPDATE
- Fields inherited from interface org.apache.openjpa.kernel.QueryFlushModes
  FLUSH_FALSE, FLUSH_TRUE, FLUSH_WITH_CONNECTION

Constructor Summary

Constructors
Constructor and Description

QueryImpl(Broker broker, String language, StoreQuery storeQuery)
Construct a query managed by the given broker.

Constructors
Constructor and Description
`QueryImpl(Broker broker, String language, StoreQuery storeQuery)` Construct a query managed by the given broker.

Method Summary

Methods
Modifier and Type	Method and Description
`void`	`addAggregateListener(AggregateListener listener)` Register an aggregate listener for the query.
`void`	`addFilterListener(FilterListener listener)` Register a filter listener for the query.
`void`	`assertNotReadOnly()` Assert that the query is not read-only.
`void`	`assertNotSerialized()` Check that the query has not been serialized, which causes it to lose its association with its Broker.
`void`	`assertOpen()` Assert that the query's broker is still open.
`protected void`	`assertParameters(StoreQuery q, StoreQuery.Executor ex, Map params)`
`protected void`	`assertParameters(StoreQuery q, StoreQuery.Executor ex, Object[] params)` Checks that the passed parameters match the declarations.
`Class`	`classForName(String name, String[] imports)` Helper method to instantiate the class with the given name, taking into account the query's candidate package, automatic imports, and the given imports (if any).
`void`	`closeAll()` Close all open query results.
`void`	`closeResources()` Close query results that are consuming resources.
`protected QueryImpl.Compilation`	`compilationFromCache()` Find the cached compilation for the current query, creating one if it does not exist.
`void`	`compile()` Compile the query.
`void`	`declareParameters(String params)` Declared parameters, for query languages that use them.
`protected QueryImpl.RemoveOnCloseResultList`	`decorateResultList(ResultList<?> res)` Optionally decorate the native result.
`long`	`deleteAll()` Deletes all of the instances that are satisfied by the query.
`long`	`deleteAll(Map params)` Deletes all of the instances that are satisfied by the query.
`long`	`deleteAll(Object[] params)` Deletes all of the instances that are satisfied by the query.
`Number`	`deleteInMemory(StoreQuery q, StoreQuery.Executor executor, Object[] params)` Helper method to delete the objects found by executing a query on the given executor.
`Object`	`execute()` Execute.
`Object`	`execute(Map params)` Execute with parameter map.
`Object`	`execute(Object[] params)` Execute with parameter array.
`ClassMetaData[]`	`getAccessPathMetaDatas()` Return the classes that affect this query.
`AggregateListener`	`getAggregateListener(String tag)` Return the filter listener for the given tag, or null.
`Collection<AggregateListener>`	`getAggregateListeners()` The set of aggregate listeners.
`String`	`getAlias()` If this query is not a projection but places candidate results into a result class under an alias, return that alias.
`Broker`	`getBroker()` The broker that generated this query.
`Collection<?>`	`getCandidateCollection()` Return the candidate collection, or `null` if an extent was specified instead of a collection.
`Extent`	`getCandidateExtent()` Return the candidate extent, or `null` if a collection was specified instead of an extent.
`Class`	`getCandidateType()` Return the class of the objects that this query will return, or `null` if this information is not available / not relevant.
`Object`	`getCompilation()` Return the query's compilation state.
`String[]`	`getDataStoreActions(Map params)` Returns a description of the commands that will be sent to the datastore in order to execute this query.
`long`	`getEndRange()` Return the 0-based exclusive end index for the returned results, or `Long.MAX_VALUE` for no limit.
`FetchConfiguration`	`getFetchConfiguration()` Return the fetch configuration for this query.
`FilterListener`	`getFilterListener(String tag)` Return the filter listener for the given tag, or null.
`Collection<FilterListener>`	`getFilterListeners()` The set of filter listeners.
`boolean`	`getIgnoreChanges()` Whether to ignore changes in the current transaction.
`String`	`getLanguage()` The query language.
`int`	`getOperation()` Returns the operation that this query will be expected to perform.
`OrderedMap<Object,Class<?>>`	`getOrderedParameterTypes()` Return a map of parameter name to type for this query.
`String`	`getParameterDeclaration()` The parameter declaration.
`org.apache.commons.collections.map.LinkedMap`	`getParameterTypes()` Return a map of parameter name to type for this query.
`String[]`	`getProjectionAliases()` If this query is a projection, return the projection aliases.
`Class<?>[]`	`getProjectionTypes()` If this query is a projection, return the projection types.
`Query`	`getQuery()` Return the query for this context.
`String`	`getQueryString()` The query string.
`String`	`getResultMappingName()` Name of a mapping from the result data to its object representation.
`Class`	`getResultMappingScope()` Scope of a mapping from the result data to its object representation.
`Class`	`getResultType()` Returns the result class that has been set through `QueryContext.setResultType(java.lang.Class<?>)`, or null if none.
`long`	`getStartRange()` Return the 0-based start index for the returned results.
`StoreContext`	`getStoreContext()` The persistence context for the query.
`StoreQuery`	`getStoreQuery()` Internal store query.
`Map`	`getUpdates()` If this query is a bulk update, return a map of the `FieldMetaData`s to `Constant`s.
`boolean`	`hasGrouping()` Return true if the query uses grouping.
`boolean`	`hasSubclasses()` Whether query results will include subclasses of the candidate class.
`static boolean`	`isAccessPathDirty(Broker broker, ClassMetaData[] accessMetas)`
`boolean`	`isAggregate()` Return true if the query is an aggregate.
`boolean`	`isDistinct()` Affirms if this query results are distinct instance(s).
`boolean`	`isParsedQuery()` Affirms if this query has originated by parsing a string-based query.
`boolean`	`isReadOnly()` Whether the query has been marked read-only.
`boolean`	`isUnique()` The unique flag.
`void`	`lock()` Synchronize on the query's internal lock.
`void`	`removeAggregateListener(AggregateListener listener)` Remove an aggregate listener from the query.
`void`	`removeFilterListener(FilterListener listener)` Remove a filter listener from the query.
`void`	`setCandidateCollection(Collection<?> candidateCollection)` Set a collection of candidates.
`void`	`setCandidateExtent(Extent candidateExtent)` Set the candidate extent.
`void`	`setCandidateType(Class candidateClass, boolean subs)` Set the candidate type.
`void`	`setIgnoreChanges(boolean flag)` Whether to ignore changes in the current transaction.
`boolean`	`setQuery(Object query)` The query string or template.
`void`	`setRange(long start, long end)` Set the range of results to return.
`void`	`setReadOnly(boolean flag)` Whether the query has been marked read-only.
`void`	`setResultMapping(Class<?> scope, String name)` Name and scope of a mapping from the result data to its object representation.
`void`	`setResultType(Class cls)` Specify the type of object in which the result of evaluating this query.
`void`	`setUnique(boolean unique)` Specify that the query will return only 1 result, rather than a collection.
`void`	`startLocking()`
`void`	`stopLocking()`
`protected Object`	`toResult(StoreQuery q, StoreQuery.Executor ex, ResultObjectProvider rop, StoreQuery.Range range)` Return the query result for the given result object provider.
`String`	`toString()`
`void`	`unlock()` Unlock the query's internal lock.
`long`	`updateAll()` Performs an update of the instances that are satisfied by the query.
`long`	`updateAll(Map params)` Performs an update of the instances that are satisfied by the query.
`long`	`updateAll(Object[] params)` Performs an update of the instances that are satisfied by the query.
`Number`	`updateInMemory(StoreQuery q, StoreQuery.Executor executor, Object[] params)` Helper method to update the objects found by executing a query on the given executor.

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

- Constructor Detail
  - QueryImpl
```
public QueryImpl(Broker broker,
         String language,
         StoreQuery storeQuery)
```
    Construct a query managed by the given broker.
- Method Detail
  - getStoreQuery
```
public StoreQuery getStoreQuery()
```
    Internal store query.
  - getBroker
```
public Broker getBroker()
```
    Description copied from interface: Query
    
    The broker that generated this query.
    
    Specified by:
    
    getBroker in interface Query
  - getQuery
```
public Query getQuery()
```
    Description copied from interface: QueryContext
    
    Return the query for this context. Note that the query will be unavailable in remote contexts, and this method may throw an exception to that effect.
    
    Specified by:
    
    getQuery in interface QueryContext
  - getStoreContext
```
public StoreContext getStoreContext()
```
    Description copied from interface: QueryContext
    
    The persistence context for the query.
    
    Specified by:
    
    getStoreContext in interface QueryContext
  - getLanguage
```
public String getLanguage()
```
    Description copied from interface: QueryContext
    
    The query language.
    
    Specified by:
    
    getLanguage in interface QueryContext
  - getFetchConfiguration
```
public FetchConfiguration getFetchConfiguration()
```
    Description copied from interface: QueryContext
    
    Return the fetch configuration for this query.
    
    Specified by:
    
    getFetchConfiguration in interface QueryContext
  - getQueryString
```
public String getQueryString()
```
    Description copied from interface: QueryContext
    
    The query string.
    
    Specified by:
    
    getQueryString in interface QueryContext
  - getIgnoreChanges
```
public boolean getIgnoreChanges()
```
    Description copied from interface: QueryContext
    
    Whether to ignore changes in the current transaction.
    
    Specified by:
    
    getIgnoreChanges in interface QueryContext
  - setIgnoreChanges
```
public void setIgnoreChanges(boolean flag)
```
    Description copied from interface: Query
    
    Whether to ignore changes in the current transaction.
    
    Specified by:
    
    setIgnoreChanges in interface Query
  - isReadOnly
```
public boolean isReadOnly()
```
    Description copied from interface: QueryContext
    
    Whether the query has been marked read-only.
    
    Specified by:
    
    isReadOnly in interface QueryContext
  - setReadOnly
```
public void setReadOnly(boolean flag)
```
    Description copied from interface: QueryContext
    
    Whether the query has been marked read-only.
    
    Specified by:
    
    setReadOnly in interface QueryContext
  - addFilterListener
```
public void addFilterListener(FilterListener listener)
```
    Description copied from interface: Query
    
    Register a filter listener for the query.
    
    Specified by:
    
    addFilterListener in interface Query
  - removeFilterListener
```
public void removeFilterListener(FilterListener listener)
```
    Description copied from interface: Query
    
    Remove a filter listener from the query.
    
    Specified by:
    
    removeFilterListener in interface Query
  - getFilterListeners
```
public Collection<FilterListener> getFilterListeners()
```
    Description copied from interface: QueryContext
    
    The set of filter listeners.
    
    Specified by:
    
    getFilterListeners in interface QueryContext
  - getFilterListener
```
public FilterListener getFilterListener(String tag)
```
    Description copied from interface: QueryContext
    
    Return the filter listener for the given tag, or null.
    
    Specified by:
    
    getFilterListener in interface QueryContext
  - addAggregateListener
```
public void addAggregateListener(AggregateListener listener)
```
    Description copied from interface: Query
    
    Register an aggregate listener for the query.
    
    Specified by:
    
    addAggregateListener in interface Query
  - removeAggregateListener
```
public void removeAggregateListener(AggregateListener listener)
```
    Description copied from interface: Query
    
    Remove an aggregate listener from the query.
    
    Specified by:
    
    removeAggregateListener in interface Query
  - getAggregateListeners
```
public Collection<AggregateListener> getAggregateListeners()
```
    Description copied from interface: QueryContext
    
    The set of aggregate listeners.
    
    Specified by:
    
    getAggregateListeners in interface QueryContext
  - getAggregateListener
```
public AggregateListener getAggregateListener(String tag)
```
    Description copied from interface: QueryContext
    
    Return the filter listener for the given tag, or null.
    
    Specified by:
    
    getAggregateListener in interface QueryContext
  - getCandidateExtent
```
public Extent getCandidateExtent()
```
    Description copied from interface: Query
    
    Return the candidate extent, or null if a collection was specified instead of an extent.
    
    Specified by:
    
    getCandidateExtent in interface Query
  - setCandidateExtent
```
public void setCandidateExtent(Extent candidateExtent)
```
    Description copied from interface: Query
    
    Set the candidate extent.
    
    Specified by:
    
    setCandidateExtent in interface Query
  - getCandidateCollection
```
public Collection<?> getCandidateCollection()
```
    Description copied from interface: QueryContext
    
    Return the candidate collection, or null if an extent was specified instead of a collection.
    
    Specified by:
    
    getCandidateCollection in interface QueryContext
  - setCandidateCollection
```
public void setCandidateCollection(Collection<?> candidateCollection)
```
    Description copied from interface: Query
    
    Set a collection of candidates.
    
    Specified by:
    
    setCandidateCollection in interface Query
  - getCandidateType
```
public Class getCandidateType()
```
    Description copied from interface: QueryContext
    
    Return the class of the objects that this query will return, or null if this information is not available / not relevant.
    
    Specified by:
    
    getCandidateType in interface QueryContext
  - setCandidateType
```
public void setCandidateType(Class candidateClass,
                    boolean subs)
```
    Description copied from interface: QueryContext
    
    Set the candidate type.
    
    Specified by:
    
    setCandidateType in interface QueryContext
  - hasSubclasses
```
public boolean hasSubclasses()
```
    Description copied from interface: QueryContext
    
    Whether query results will include subclasses of the candidate class.
    
    Specified by:
    
    hasSubclasses in interface QueryContext
  - getResultMappingName
```
public String getResultMappingName()
```
    Description copied from interface: QueryContext
    
    Name of a mapping from the result data to its object representation.
    
    Specified by:
    
    getResultMappingName in interface QueryContext
  - getResultMappingScope
```
public Class getResultMappingScope()
```
    Description copied from interface: QueryContext
    
    Scope of a mapping from the result data to its object representation.
    
    Specified by:
    
    getResultMappingScope in interface QueryContext
  - setResultMapping
```
public void setResultMapping(Class<?> scope,
                    String name)
```
    Description copied from interface: QueryContext
    
    Name and scope of a mapping from the result data to its object representation.
    
    Specified by:
    
    setResultMapping in interface QueryContext
  - isUnique
```
public boolean isUnique()
```
    Description copied from interface: QueryContext
    
    The unique flag.
    
    Specified by:
    
    isUnique in interface QueryContext
  - isParsedQuery
```
public boolean isParsedQuery()
```
    Affirms if this query has originated by parsing a string-based query.
  - setUnique
```
public void setUnique(boolean unique)
```
    Description copied from interface: QueryContext
    
    Specify that the query will return only 1 result, rather than a collection. The execute method will return null if the query result size is 0.
    
    Specified by:
    
    setUnique in interface QueryContext
  - getResultType
```
public Class getResultType()
```
    Description copied from interface: QueryContext
    
    Returns the result class that has been set through QueryContext.setResultType(java.lang.Class<?>), or null if none.
    
    Specified by:
    
    getResultType in interface QueryContext
  - setResultType
```
public void setResultType(Class cls)
```
    Description copied from interface: QueryContext
    
    Specify the type of object in which the result of evaluating this query.
    
    Specified by:
    
    setResultType in interface QueryContext
  - getStartRange
```
public long getStartRange()
```
    Description copied from interface: QueryContext
    
    Return the 0-based start index for the returned results.
    
    Specified by:
    
    getStartRange in interface QueryContext
  - getEndRange
```
public long getEndRange()
```
    Description copied from interface: QueryContext
    
    Return the 0-based exclusive end index for the returned results, or Long.MAX_VALUE for no limit.
    
    Specified by:
    
    getEndRange in interface QueryContext
  - setRange
```
public void setRange(long start,
            long end)
```
    Description copied from interface: QueryContext
    
    Set the range of results to return.
    
    Specified by:
    
    setRange in interface QueryContext
    
    Parameters:
    start - 0-based inclusive start index
    end - 0-based exclusive end index, or Long.MAX_VALUE for no limit
  - getParameterDeclaration
```
public String getParameterDeclaration()
```
    Description copied from interface: QueryContext
    
    The parameter declaration.
    
    Specified by:
    
    getParameterDeclaration in interface QueryContext
  - declareParameters
```
public void declareParameters(String params)
```
    Description copied from interface: QueryContext
    
    Declared parameters, for query languages that use them.
    
    Specified by:
    
    declareParameters in interface QueryContext
  - compile
```
public void compile()
```
    Description copied from interface: Query
    
    Compile the query.
    
    Specified by:
    
    compile in interface Query
  - getCompilation
```
public Object getCompilation()
```
    Description copied from interface: QueryContext
    
    Return the query's compilation state.
    
    Specified by:
    
    getCompilation in interface QueryContext
  - compilationFromCache
```
protected QueryImpl.Compilation compilationFromCache()
```
    Find the cached compilation for the current query, creating one if it does not exist.
  - execute
```
public Object execute()
```
    Description copied from interface: Query
    
    Execute.
    
    Specified by:
    
    execute in interface Query
  - execute
```
public Object execute(Object[] params)
```
    Description copied from interface: Query
    
    Execute with parameter array.
    
    Specified by:
    
    execute in interface Query
  - execute
```
public Object execute(Map params)
```
    Description copied from interface: Query
    
    Execute with parameter map.
    
    Specified by:
    
    execute in interface Query
  - deleteAll
```
public long deleteAll()
```
    Description copied from interface: Query
    
    Deletes all of the instances that are satisfied by the query.
    
    Specified by:
    
    deleteAll in interface Query
    
    Returns:
    the number of instances that were deleted
  - deleteAll
```
public long deleteAll(Object[] params)
```
    Description copied from interface: Query
    
    Deletes all of the instances that are satisfied by the query.
    
    Specified by:
    
    deleteAll in interface Query
    
    Parameters:
    params - the positional parameters for the query
    
    Returns:
    the number of instances that were deleted
  - deleteAll
```
public long deleteAll(Map params)
```
    Description copied from interface: Query
    
    Deletes all of the instances that are satisfied by the query.
    
    Specified by:
    
    deleteAll in interface Query
    
    Parameters:
    params - the named parameter map
    
    Returns:
    the number of instances that were deleted
  - updateAll
```
public long updateAll()
```
    Description copied from interface: Query
    
    Performs an update of the instances that are satisfied by the query.
    
    Specified by:
    
    updateAll in interface Query
    
    Returns:
    the number of instances that were update
  - updateAll
```
public long updateAll(Object[] params)
```
    Description copied from interface: Query
    
    Performs an update of the instances that are satisfied by the query.
    
    Specified by:
    
    updateAll in interface Query
    
    Parameters:
    params - the positional parameter array
    
    Returns:
    the number of instances that were update
  - updateAll
```
public long updateAll(Map params)
```
    Description copied from interface: Query
    
    Performs an update of the instances that are satisfied by the query.
    
    Specified by:
    
    updateAll in interface Query
    
    Parameters:
    params - the named parameter map
    
    Returns:
    the number of instances that were update
  - deleteInMemory
```
public Number deleteInMemory(StoreQuery q,
                    StoreQuery.Executor executor,
                    Object[] params)
```
    Description copied from interface: QueryContext
    
    Helper method to delete the objects found by executing a query on the given executor.
    
    Specified by:
    
    deleteInMemory in interface QueryContext
  - updateInMemory
```
public Number updateInMemory(StoreQuery q,
                    StoreQuery.Executor executor,
                    Object[] params)
```
    Description copied from interface: QueryContext
    
    Helper method to update the objects found by executing a query on the given executor.
    
    Specified by:
    
    updateInMemory in interface QueryContext
  - toResult
```
protected Object toResult(StoreQuery q,
              StoreQuery.Executor ex,
              ResultObjectProvider rop,
              StoreQuery.Range range)
                   throws Exception
```
    Return the query result for the given result object provider.
    
    Throws:
    
    Exception
  - decorateResultList
```
protected QueryImpl.RemoveOnCloseResultList decorateResultList(ResultList<?> res)
```
    Optionally decorate the native result.
  - isAccessPathDirty
```
public static boolean isAccessPathDirty(Broker broker,
                        ClassMetaData[] accessMetas)
```
  - closeAll
```
public void closeAll()
```
    Description copied from interface: Query
    
    Close all open query results.
    
    Specified by:
    
    closeAll in interface Query
  - closeResources
```
public void closeResources()
```
    Description copied from interface: Query
    
    Close query results that are consuming resources. Allow results that are not consuming resources to remain open so that they continue to function normally.
    
    Specified by:
    
    closeResources in interface Query
  - getDataStoreActions
```
public String[] getDataStoreActions(Map params)
```
    Description copied from interface: Query
    
    Returns a description of the commands that will be sent to the datastore in order to execute this query. This will typically be in the native query language of the database (e.g., SQL).
    
    Specified by:
    
    getDataStoreActions in interface Query
    
    Parameters:
    params - the named parameter map for the query invocation
  - setQuery
```
public boolean setQuery(Object query)
```
    Description copied from interface: Query
    
    The query string or template.
    
    Specified by:
    
    setQuery in interface Query
  - getAlias
```
public String getAlias()
```
    Description copied from interface: QueryContext
    
    If this query is not a projection but places candidate results into a result class under an alias, return that alias.
    
    Specified by:
    
    getAlias in interface QueryContext
  - getProjectionAliases
```
public String[] getProjectionAliases()
```
    Description copied from interface: QueryContext
    
    If this query is a projection, return the projection aliases.
    
    Specified by:
    
    getProjectionAliases in interface QueryContext
  - getProjectionTypes
```
public Class<?>[] getProjectionTypes()
```
    Description copied from interface: QueryContext
    
    If this query is a projection, return the projection types.
    
    Specified by:
    
    getProjectionTypes in interface QueryContext
  - getOperation
```
public int getOperation()
```
    Description copied from interface: QueryContext
    
    Returns the operation that this query will be expected to perform.
    
    Specified by:
    
    getOperation in interface QueryContext
    
    See Also:
    QueryOperations
  - isAggregate
```
public boolean isAggregate()
```
    Description copied from interface: QueryContext
    
    Return true if the query is an aggregate.
    
    Specified by:
    
    isAggregate in interface QueryContext
  - isDistinct
```
public boolean isDistinct()
```
    Description copied from interface: QueryContext
    
    Affirms if this query results are distinct instance(s).
    
    Specified by:
    
    isDistinct in interface QueryContext
  - hasGrouping
```
public boolean hasGrouping()
```
    Description copied from interface: QueryContext
    
    Return true if the query uses grouping.
    
    Specified by:
    
    hasGrouping in interface QueryContext
  - getAccessPathMetaDatas
```
public ClassMetaData[] getAccessPathMetaDatas()
```
    Description copied from interface: QueryContext
    
    Return the classes that affect this query.
    
    Specified by:
    
    getAccessPathMetaDatas in interface QueryContext
  - getOrderedParameterTypes
```
public OrderedMap<Object,Class<?>> getOrderedParameterTypes()
```
    Description copied from interface: QueryContext
    
    Return a map of parameter name to type for this query. The returned map will iterate in the order that the parameters were declared or, if they're implicit, used.
    
    Specified by:
    
    getOrderedParameterTypes in interface QueryContext
  - getParameterTypes
```
public org.apache.commons.collections.map.LinkedMap getParameterTypes()
```
    Description copied from interface: QueryContext
    
    Return a map of parameter name to type for this query. The returned map will iterate in the order that the parameters were declared or, if they're implicit, used.
    
    Specified by:
    
    getParameterTypes in interface QueryContext
  - getUpdates
```
public Map getUpdates()
```
    Description copied from interface: QueryContext
    
    If this query is a bulk update, return a map of the FieldMetaDatas to Constants.
    
    Specified by:
    
    getUpdates in interface QueryContext
  - lock
```
public void lock()
```
    Description copied from interface: QueryContext
    
    Synchronize on the query's internal lock.
    
    Specified by:
    
    lock in interface QueryContext
  - unlock
```
public void unlock()
```
    Description copied from interface: QueryContext
    
    Unlock the query's internal lock.
    
    Specified by:
    
    unlock in interface QueryContext
  - startLocking
```
public void startLocking()
```
  - stopLocking
```
public void stopLocking()
```
  - classForName
```
public Class classForName(String name,
                 String[] imports)
```
    Description copied from interface: QueryContext
    
    Helper method to instantiate the class with the given name, taking into account the query's candidate package, automatic imports, and the given imports (if any). Returns null if the type cannot be found.
    
    Specified by:
    
    classForName in interface QueryContext
  - assertOpen
```
public void assertOpen()
```
    Description copied from interface: Query
    
    Assert that the query's broker is still open.
    
    Specified by:
    
    assertOpen in interface Query
  - assertNotReadOnly
```
public void assertNotReadOnly()
```
    Description copied from interface: Query
    
    Assert that the query is not read-only.
    
    Specified by:
    
    assertNotReadOnly in interface Query
  - assertNotSerialized
```
public void assertNotSerialized()
```
    Description copied from interface: Query
    
    Check that the query has not been serialized, which causes it to lose its association with its Broker.
    
    Specified by:
    
    assertNotSerialized in interface Query
  - assertParameters
```
protected void assertParameters(StoreQuery q,
                    StoreQuery.Executor ex,
                    Object[] params)
```
    Checks that the passed parameters match the declarations.
  - assertParameters
```
protected void assertParameters(StoreQuery q,
                    StoreQuery.Executor ex,
                    Map params)
```
  - toString
```
public String toString()
```
    Overrides:
    
    toString in class Object

Class QueryImpl

Nested Class Summary

Field Summary

Fields inherited from interface org.apache.openjpa.kernel.QueryOperations

Fields inherited from interface org.apache.openjpa.kernel.QueryFlushModes

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

QueryImpl

Method Detail

getStoreQuery

getBroker

getQuery

getStoreContext

getLanguage

getFetchConfiguration

getQueryString

getIgnoreChanges

setIgnoreChanges

isReadOnly

setReadOnly

addFilterListener

removeFilterListener

getFilterListeners

getFilterListener

addAggregateListener

removeAggregateListener

getAggregateListeners

getAggregateListener

getCandidateExtent

setCandidateExtent

getCandidateCollection

setCandidateCollection

getCandidateType

setCandidateType

hasSubclasses

getResultMappingName

getResultMappingScope

setResultMapping

isUnique

isParsedQuery

setUnique

getResultType

setResultType

getStartRange

getEndRange

setRange

getParameterDeclaration

declareParameters

compile

getCompilation

compilationFromCache

execute

execute

execute

deleteAll

deleteAll

deleteAll

updateAll

updateAll

updateAll

deleteInMemory

updateInMemory

toResult

decorateResultList

isAccessPathDirty

closeAll

closeResources

getDataStoreActions

setQuery

getAlias

getProjectionAliases

getProjectionTypes

getOperation

isAggregate

isDistinct

hasGrouping

getAccessPathMetaDatas

getOrderedParameterTypes