org.springframework.data.repository.query
Class QueryMethod

java.lang.Object
  org.springframework.data.repository.query.QueryMethod

public class QueryMethod
extends java.lang.Object

Abstraction of a method that is designated to execute a finder query. Enriches the standard Method interface with specific information that is necessary to construct RepositoryQuerys for the method.

Author:

Oliver Gierke

Constructor Summary

QueryMethod(java.lang.reflect.Method method, RepositoryMetadata metadata)
Creates a new QueryMethod from the given parameters.

Method Summary

protected Parameters	createParameters(java.lang.reflect.Method method) Creates a Parameters instance.
protected java.lang.Class<?>	getDomainClass() Returns the domain class the query method is targeted at.
EntityMetadata<?>	getEntityInformation()
java.lang.String	getName() Returns the method's name.
java.lang.String	getNamedQueryName() Returns the name of the named query this method belongs to.
Parameters	getParameters() Returns the Parameters wrapper to gain additional information about Method parameters.
java.lang.Class<?>	getReturnedObjectType() Returns the type of the object that will be returned.
boolean	isCollectionQuery() Returns whether the finder will actually return a collection of entities or a single one.
boolean	isModifyingQuery()
boolean	isPageQuery() Returns whether the finder will return a Page of results.
java.lang.String	toString()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

QueryMethod

public QueryMethod(java.lang.reflect.Method method,
                   RepositoryMetadata metadata)

Creates a new QueryMethod from the given parameters. Looks up the correct query to use for following invocations of the method given.

Parameters:

method - must not be null

metadata - must not be null

Method Detail

createParameters

protected Parameters createParameters(java.lang.reflect.Method method)

Creates a Parameters instance.

Parameters:

method -

Returns:

must not return null.

getName

public java.lang.String getName()

Returns the method's name.

Returns:

getEntityInformation

public EntityMetadata<?> getEntityInformation()

getNamedQueryName

public java.lang.String getNamedQueryName()

Returns the name of the named query this method belongs to.

Returns:

getDomainClass

protected java.lang.Class<?> getDomainClass()

Returns the domain class the query method is targeted at.

Returns:

getReturnedObjectType

public java.lang.Class<?> getReturnedObjectType()

Returns the type of the object that will be returned.

Returns:

isCollectionQuery

public boolean isCollectionQuery()

Returns whether the finder will actually return a collection of entities or a single one.

Returns:

isPageQuery

public boolean isPageQuery()

Returns whether the finder will return a Page of results.

Returns:

isModifyingQuery

public boolean isModifyingQuery()

getParameters

public Parameters getParameters()

Returns the Parameters wrapper to gain additional information about Method parameters.

Returns:

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object