Interface ResourceResolver
- All Superinterfaces:
Adaptable
,AutoCloseable
,Closeable
- All Known Implementing Classes:
ResourceResolverWrapper
ResourceResolver
defines the API which may be used
to resolve Resource
objects and
work with such resources like creating, editing or updating them.
The resource resolver is available to the request processing servlet
through the
SlingHttpServletRequest.getResourceResolver()
method. A resource resolver can also be created through the
ResourceResolverFactory
service.
The ResourceResolver
is also an Adaptable
to get
adapters to other types. A JCR based resource resolver might support adapting
to the JCR Session used by the resolver to access the JCR Repository.
A ResourceResolver
is generally not thread safe! As a
consequence, an application which uses the resolver, its returned resources
and/or objects resulting from adapting either the resolver or a resource,
must provide proper synchronization to ensure no more than one thread
concurrently operates against a single resolver, resource or resulting
objects.
Accessing Resources
This interface defines two kinds of methods to access resources: The
resolve
methods and the getResource
methods. The
difference lies in the algorithm applied to find the requested resource and
in the behavior in case a resource cannot be found:
Method Kind | Access Algorithm | Missing Resource |
---|---|---|
resolve | Path is always assumed to be absolute. Uses elaborate resource resolution algorithm. This kind of method is intended to resolve request URLs to resources. | Returns NonExistingResource |
getResource | Directly access resources with absolute path. For relative paths, the
search path is applied. This method is intended to
be used by request processing scripts to access further resources as
required. |
Returns null |
Resource Handling
A resource resolver provides various methods to manage resources. All changes are transient and require to commit them at the end.
create(Resource, String, Map)
for creating a new resource.delete(Resource)
to delete a resource.Adaptable.adaptTo(Class)
allows to adapt a resource to aModifiableValueMap
to update a resource.move(String, String)
to move resources.copy(String, String)
to copy resources.commit()
commits all staged changes.revert()
reverts all staged changes.
The resource tree accessible through the resource resolver is backed by one or
more ResourceProvider
s. In
general it is advisable to limit transient changes to a single resource provider.
The commit()
is not using a two phase commit, therefore if there
is more than one resource provider involved and one of them fails in persisting,
changes already committed to other providers are not reverted.
External changes
Changes which happen outside of the Resource API provided by Sling are not required to be reflected immediately within an already opened ResourceResolver and its associated resources. For example, if the ResourceResolver is backed by a JCR implementation, any changes within the JCR session (which is an implementation detail of the respective ResourceResolver implementation) are not required to be reflected within its Resource Resolver.
Lifecycle
A Resource Resolver has a life cycle which begins with the creation of the
Resource Resolver using any of the factory methods and ends with calling the
close()
method. It is very important to call the close()
method once the resource resolver is not used any more to ensure any system
resources are properly cleaned up.
A Resource Resolver may also be closed implicitly if the ResourceResolverFactory
which was used to create this resolver is no longer active.
To check whether a Resource Resolver can still be used, the isLive()
method can be called.
A ResourceResolver
is only valid for as long as the
ResourceResolverFactory
that created this instance exists. The
same applies in general to all objects returned by this instance,
especially for all resources. If the ResourceResolverFactory
does not exist anymore, the resource resolver instances becomes invalid.
Resource Resolver Attributes
The authentication info properties provided to the
ResourceResolverFactory.getResourceResolver(Map)
,
ResourceResolverFactory.getAdministrativeResourceResolver(Map)
, or
clone(Map)
are available through the getAttributeNames()
and getAttribute(String)
methods with the exception of security
sensitive properties like ResourceResolverFactory.PASSWORD
which is
not exposed.
-
Field Summary
Modifier and TypeFieldDescriptionstatic final String
This is the suggested property to be used for setting the resource type of a resource during either creation (create(Resource, String, Map)
) or modifying (ModifiableValueMap
).static final String
Deprecated.static final String
The name of the resource resolver attribute which is set if the resource resolver has been impersonated as per theResourceResolverFactory.USER_IMPERSONATION
property. -
Method Summary
Modifier and TypeMethodDescription@NotNull ResourceResolver
Returns a newResourceResolver
instance based on the givenauthenticationInfo
map and the original authentication info used to create this instance.void
close()
Close this resource resolver.void
commit()
Persist all pending changes.This method copies the subgraph rooted at, and including, the resource atsrcAbsPath
to the new location atdestAbsPath
and adds it as a child node of the resource atdestAbsPath
.@NotNull Resource
Add a child resource to the given parent resource.void
Delete the resource Deleting a non existing resource leads to no operation nor exception.findResources
(@NotNull String query, String language) Searches for resources using the given query formulated in the given language.@Nullable Object
getAttribute
(@NotNull String name) Returns the value of the given resource resolver attribute ornull
if the attribute is not set (or not visible as is the case of theResourceResolverFactory.PASSWORD
or other security sensitive attributes).Returns an iterator of attribute names whose value can be retrieved calling thegetAttribute(String)
method.getChildren
(@NotNull Resource parent) @Nullable Resource
Returns the parent resource of this resource.@Nullable String
getParentResourceType
(String resourceType) Returns the super type of the given resource type.@Nullable String
getParentResourceType
(Resource resource) Returns the super type of the given resource.Returns a mutable map to store temporary objects.@Nullable Resource
getResource
(@NotNull String path) Returns aResource
object for data located at the given path.@Nullable Resource
getResource
(Resource base, @NotNull String path) Returns aResource
object for data located at the given path.@NotNull String[]
Returns the search path used by thegetResource(String)
method to search for resources by relative path.@Nullable String
Get the user ID, if any, associated with this resource resolver.boolean
Are there any pending changes?boolean
hasChildren
(@NotNull Resource resource) Checks if the specified resource has any direct child resources.boolean
isLive()
Returnstrue
if this resource resolver is still usable.boolean
isResourceType
(Resource resource, String resourceType) Returnstrue
if the resource type or any of the resource's super type(s) equals the given resource type.listChildren
(@NotNull Resource parent) @NotNull String
Returns a (request) path mapped from the (resource) path applying the reverse mapping used by theresolve(String)
such that when the path is given to theresolve(String)
method the same resource is returned.@NotNull String
Returns an URL mapped from the (resource) path applying the reverse mapping used by theresolve(HttpServletRequest, String)
such that when the path is given to theresolve(HttpServletRequest, String)
method the same resource is returned.This method moves the subgraph rooted at, and including, the resource atsrcAbsPath
to the new location atdestAbsPath
and adds it as a child node of the resource atdestAbsPath
.boolean
orderBefore
(@NotNull Resource parent, @NotNull String name, @Nullable String followingSiblingName) Orders the child resources returned bygetChildren(Resource)
andlistChildren(Resource)
so that a given resource is listed before the given sibling resource.queryResources
(@NotNull String query, String language) Queries the storage using the given query formulated in the given language.void
refresh()
The resolver is updated to reflect the latest state.@NotNull Resource
Resolves the resource from the given absolute path.@NotNull Resource
resolve
(@NotNull javax.servlet.http.HttpServletRequest request) Deprecated.@NotNull Resource
Resolves the resource from the givenabsPath
optionally takingHttpServletRequest
into account, such as the value of theHost
request header.void
revert()
Revert all pending changes.
-
Field Details
-
REQUEST_ATTR_WORKSPACE_INFO
Deprecated.A request attribute containing the workspace to use forresolve(HttpServletRequest)
andresolve(HttpServletRequest, String)
if not the default workspace should be used to resolve the resource.- Since:
- 2.1 (Sling API Bundle 2.1.0)
-
USER_IMPERSONATOR
The name of the resource resolver attribute which is set if the resource resolver has been impersonated as per theResourceResolverFactory.USER_IMPERSONATION
property. The value of this attribute is the name of the primary user provided to the resource resolver factory method.- Since:
- 2.1 (Sling API Bundle 2.1.0)
- See Also:
-
PROPERTY_RESOURCE_TYPE
This is the suggested property to be used for setting the resource type of a resource during either creation (create(Resource, String, Map)
) or modifying (ModifiableValueMap
). However the exact way to set the resource type of a resource is defined by the underlying resource provider. It should value this property but is not required to do so.- Since:
- 2.3 (Sling API Bundle 2.4.0)
- See Also:
-
-
Method Details
-
resolve
@NotNull @NotNull Resource resolve(@NotNull @NotNull javax.servlet.http.HttpServletRequest request, @NotNull @NotNull String absPath) Resolves the resource from the givenabsPath
optionally takingHttpServletRequest
into account, such as the value of theHost
request header. Returns aNonExistingResource
if the path cannot be resolved to an existing and accessible resource.The difference between this method and the
resolve(String)
method is, that this method may take request properties like the scheme, the host header or request parameters into account to resolve the resource.- Parameters:
request
- The http servlet request object providing more hints at how to resolve theabsPath
. This parameter may benull
in which case the implementation should use reasonable defaults.absPath
- The absolute path to be resolved to a resource. If this parameter isnull
, it is assumed to address the root of the resource tree. If the path is relative it is assumed relative to the root, that is a slash is prepended to the path before resolving it.- Returns:
- The
Resource
addressed by theabsPath
or aNonExistingResource
if no such resource can be resolved. - Throws:
SlingException
- Or a subclass thereof may be thrown if an error occurs trying to resolve the resource.IllegalStateException
- if this resource resolver has already beenclosed
.- Since:
- 2.0.4 (Sling API Bundle 2.0.4)
- See Also:
-
resolve
Resolves the resource from the given absolute path. Returns aNonExistingResource
if the path cannot be resolved to an existing and accessible resource.This method is intended to apply the same algorithm to the absolute path as is used by the
resolve(HttpServletRequest)
method except for cases where the latter uses request property such as request headers or request parameters to resolve a resource.It is ok for the implementation of this method to just call the
resolve(HttpServletRequest, String)
method withnull
as the request argument.- Parameters:
absPath
- The absolute path to be resolved to a resource. If this parameter isnull
, it is assumed to address the root of the resource tree. If the path is relative it is assumed relative to the root, that is a slash is prepended to the path before resolving it.- Returns:
- The
Resource
addressed by theabsPath
or aNonExistingResource
if no such resource can be resolved. - Throws:
SlingException
- Or a subclass thereof may be thrown if an error occurs trying to resolve the resource.IllegalStateException
- if this resource resolver has already beenclosed
.- See Also:
-
resolve
@Deprecated @NotNull @NotNull Resource resolve(@NotNull @NotNull javax.servlet.http.HttpServletRequest request) Deprecated.as of 2.0.4, useresolve(HttpServletRequest, String)
instead.Resolves the resource from the givenHttpServletRequest
. Returns aNonExistingResource
if the path cannot be resolved to an existing and accessible resource.This method is deprecated as of API version 2.0.4 and should not be used anymore. Implementations are expected to implement this method calling the
resolve(HttpServletRequest, String)
where theabsPath
argument is the result of calling thegetPathInfo()
on therequest
object.- Parameters:
request
- The http servlet request object used to resolve the resource for. This must not benull
.- Returns:
- The
Resource
addressed byHttpServletRequest.getPathInfo()
or aNonExistingResource
if no such resource can be resolved. - Throws:
NullPointerException
- Ifrequest
isnull
.SlingException
- Or a subclass thereof may be thrown if an error occurs trying to resolve the resource.IllegalStateException
- if this resource resolver has already beenclosed
.- See Also:
-
map
Returns a (request) path mapped from the (resource) path applying the reverse mapping used by theresolve(String)
such that when the path is given to theresolve(String)
method the same resource is returned.Note, that technically the
resourcePath
need not refer to an existing resource. This method just applies the mappings and returns the resulting string. If theresourcePath
does not address an existing resource roundtripping may of course not work and callingresolve(String)
with the path returned may returnnull
.This method is intended as the reverse operation of the
resolve(String)
method.This method also does percent-encoding before returning the (request) path (with charset UTF-8). Due to this calling this method multiple times in a nested fashion might lead to an invalid (request) path which can subsequently not be resolved via
resolve(String)
.- Parameters:
resourcePath
- The path for which to return a mapped path.- Returns:
- The mapped path or
resourcePath
in case no mapping is found. - Throws:
IllegalStateException
- if this resource resolver has already beenclosed
.- See Also:
-
map
@NotNull @NotNull String map(@NotNull @NotNull javax.servlet.http.HttpServletRequest request, @NotNull @NotNull String resourcePath) Returns an URL mapped from the (resource) path applying the reverse mapping used by theresolve(HttpServletRequest, String)
such that when the path is given to theresolve(HttpServletRequest, String)
method the same resource is returned.Note, that technically the
resourcePath
need not refer to an existing resource. This method just applies the mappings and returns the resulting string. If theresourcePath
does not address an existing resource roundtripping may of course not work and callingresolve(HttpServletRequest, String)
with the path returned may returnnull
.This method is intended as the reverse operation of the
resolve(HttpServletRequest, String)
method. As such the URL returned is expected to be an absolute URL including scheme, host, any servlet context path and the actual path used to resolve the resource.This method also does percent-encoding before returning the URL (with charset UTF-8). Due to this calling this method multiple times in a nested fashion might lead to an invalid URL which can subsequently not be resolved via
resolve(String)
.- Parameters:
request
- The http servlet request object which may be used to apply more mapping functionality.resourcePath
- The path for which to return a mapped path.- Returns:
- The mapped URL or
resourcePath
in case no mapping is found. - Throws:
IllegalStateException
- if this resource resolver has already beenclosed
.- Since:
- 2.0.4 (Sling API Bundle 2.0.4)
- See Also:
-
getResource
Returns aResource
object for data located at the given path.This specification does not define the location for resources or the semantics for resource paths. For an implementation reading content from a Java Content Repository, the path could be a
javax.jcr.Item
path from which the resource object is loaded. In contrast to theresolve(String)
method, this method does not apply any logic to the path, so the path is used as-is to fetch the content.- Parameters:
path
- The absolute path to the resource object to be loaded. The path may contain relative path specifiers like.
(current location) and..
(parent location), which are resolved by this method. If the path is relative, that is the first character is not a slash, implementations are expected to apply a search path algorithm to resolve the relative path to a resource.- Returns:
- The
Resource
object loaded from the path ornull
if the path does not resolve to a resource. - Throws:
SlingException
- If an error occurs trying to load the resource object from the path.IllegalStateException
- if this resource resolver has already beenclosed
.
-
getResource
Returns aResource
object for data located at the given path.This specification does not define the location for resources or the semantics for resource paths. For an implementation reading content from a Java Content Repository, the path could be a
javax.jcr.Item
path from which the resource object is loaded.- Parameters:
base
- The baseResource
against which a relative path argument given bypath
is resolved. This parameter may benull
if thepath
is known to be absolute.path
- The path to the resource object to be loaded. If the path is relative, i.e. does not start with a slash (/
), the resource relative to the givenbase
resource is returned. The path may contain relative path specifiers like.
(current location) and..
(parent location), which are resolved by this method.- Returns:
- The
Resource
object loaded from the path ornull
if the path does not resolve to a resource. - Throws:
SlingException
- If an error occurs trying to load the resource object from the path or ifbase
isnull
andpath
is relative.IllegalStateException
- if this resource resolver has already beenclosed
.
-
getSearchPath
Returns the search path used by thegetResource(String)
method to search for resources by relative path. If no search path is set an array with the single value "/" is returned.The returned array of strings is a copy of the internal value, so modifications to this array have no influence on the operation of the ResourceResolver.
The search path of a resource resolver never changes during the lifetime of the resource resolver. Therefore clients may call this method once and use the stored value together with this resource resolver.
Each entry in the array is an absolute path terminated with a slash character. Thus to create an absolute path from a search path entry and a relative path, the search path entry and relative path may just be concatenated.
- Returns:
- The array of search paths
- Throws:
IllegalStateException
- if this resource resolver has already beenclosed
.
-
listChildren
Returns anIterator
ofResource
objects loaded from the children of the givenResource
.This specification does not define what the term "child" means. This is left to the implementation to define. For example an implementation reading content from a Java Content Repository, the children could be the
Resource
objects loaded from child items of theItem
of the givenResource
.- Parameters:
parent
- TheResource
whose children are requested.- Returns:
- An
Iterator
ofResource
objects. - Throws:
NullPointerException
- Ifparent
isnull
.SlingException
- If any error occurs acquiring the child resource iterator.IllegalStateException
- if this resource resolver has already beenclosed
.
-
getParent
Returns the parent resource of this resource.This method is implemented by getting the parent resource path first calling the
ResourceUtil.getParent(String)
method and then to retrieve that resource.- Parameters:
child
- TheResource
whose parent is requested.- Returns:
- The parent resource or
null
. - Throws:
NullPointerException
- Ifchild
isnull
.SlingException
- If any error occurs acquiring the parent resource.IllegalStateException
- if this resource resolver has already beenclosed
.- Since:
- 2.9 (Sling API Bundle 2.11.0)
-
getChildren
Returns anIterable
ofResource
objects loaded from the children of the givenResource
.This specification does not define what the term "child" means. This is left to the implementation to define. For example an implementation reading content from a Java Content Repository, the children could be the
Resource
objects loaded from child items of theItem
of the givenResource
.- Parameters:
parent
- TheResource
whose children are requested.- Returns:
- An
Iterable
ofResource
objects. - Throws:
NullPointerException
- Ifparent
isnull
.SlingException
- If any error occurs acquiring the child resource iterator.IllegalStateException
- if this resource resolver has already beenclosed
.- Since:
- 2.2 (Sling API Bundle 2.2.0)
-
findResources
Searches for resources using the given query formulated in the given language.The semantic meaning of the query and language depend on the actual implementation and storage used for the resources. For JCR repository being used as storage, the query and language parameters are used to create a JCR
Query
through theQueryManager
. The result returned is then based on theNodeIterator
provided by the query result.- Parameters:
query
- The query string to use to find the resources.language
- The language in which the query is formulated. The language should always be specified. However for compatibility with older version, if no language is specified, "xpath" is used.- Returns:
- An
Iterator
ofResource
objects matching the query. - Throws:
QuerySyntaxException
- If the query is not syntactically correct according to the query language indicator.SlingException
- If an error occurs querying for the resources.IllegalStateException
- if this resource resolver has already beenclosed
.
-
queryResources
@NotNull @NotNull Iterator<Map<String,Object>> queryResources(@NotNull @NotNull String query, String language) Queries the storage using the given query formulated in the given language.The semantic meaning of the query and language depend on the actual implementation and storage used for the resources. For JCR repository being used as storage, the query and language parameters are used to create a JCR
Query
through theQueryManager
. The result returned is then based on theRowIterator
provided by the query result. The map returned for each row is indexed by the column name and the column value is the JCRValue
object converted into the respective Java object, such asBoolean
for a value of property type Boolean.- Parameters:
query
- The query string to use to find the resources.language
- The language in which the query is formulated. The language should always be specified. However for compatibility with older version, if no language is specified, "xpath" is used.- Returns:
- An
Iterator
ofMap
instances providing access to the query result. - Throws:
QuerySyntaxException
- If the query is not syntactically correct according to the query language indicator.SlingException
- If an error occurs querying for the resources.IllegalStateException
- if this resource resolver has already beenclosed
.
-
hasChildren
Checks if the specified resource has any direct child resources.- Parameters:
resource
- the resource to check for direct children- Returns:
true
if the resource has any child resources- Throws:
IllegalStateException
- if this resource resolver has already beenclosed
.- Since:
- 2.4.4 (Sling API Bundle 2.5.0)
-
clone
@NotNull @NotNull ResourceResolver clone(Map<String, Object> authenticationInfo) throws LoginExceptionReturns a newResourceResolver
instance based on the givenauthenticationInfo
map and the original authentication info used to create this instance.The new resource resolver is created according to the following algorithm:
Map<String, Object> newAuthenticationInfo = new HashMap( authenticationInfoOfThisInstance); newAuthenticationInfo.addAll(authenticationInfo); return resourceResolverFactory.getResourceResolver(newAuthenticationInfo);
- Parameters:
authenticationInfo
- The map or credential data to overlay the original credential data with for the creation of a new resource resolver. This may benull
in which case the same credential data is used as was used to create this instance.- Returns:
- A new
ResourceResolver
- Throws:
LoginException
- If an error occurs creating the newResourceResolver
with the provided credential data.IllegalStateException
- if this resource resolver has already beenclosed
.- Since:
- 2.1 (Sling API Bundle 2.1.0)
-
isLive
boolean isLive()Returnstrue
if this resource resolver is still usable. This method tests different things like if it has not been closed yet or if any of the used resource providers is not usable anymore.Unlike the other methods defined in this interface, this method will never throw an exception even after the resource resolver has been
closed
.- Returns:
true
if the resource resolver is still usable. Once the resource resolver has been closed or a used resource provider has been unregistered, this method returnsfalse
.- Since:
- 2.1 (Sling API Bundle 2.1.0)
-
close
void close()Close this resource resolver. This method should be called by clients when the resource resolver is not used anymore. Once this method has been called, the resource resolver is considered unusable and will throw exceptions if still used - with the exception of this method, which can be called several times with no ill effects. A resolver may also be closed implicitly in case when theResourceResolverFactory
which was used to create this resolver is no longer active or any of the used resource providers is no longer active. All objects in the map maintained bygetPropertyMap()
implementing theCloseable
interface, will be closed by callingCloseable#close()
on each of them. Any exception thrown by this call will be ignored. The order in which the objects are closed is not defined.- Specified by:
close
in interfaceAutoCloseable
- Specified by:
close
in interfaceCloseable
- Since:
- 2.1 (Sling API Bundle 2.1.0)
- See Also:
-
getUserID
Get the user ID, if any, associated with this resource resolver. The meaning of this identifier is an implementation detail defined by the underlying repository. This method may return null.- Returns:
- the user ID
- Throws:
IllegalStateException
- if this resource resolver has already beenclosed
.- Since:
- 2.1 (Sling API Bundle 2.1.0)
-
getAttributeNames
Returns an iterator of attribute names whose value can be retrieved calling thegetAttribute(String)
method. This iterator will not include any attributes which are not accessible.- Returns:
- An iterator of attribute names
- Throws:
IllegalStateException
- if this resource resolver has already beenclosed
.
-
getAttribute
Returns the value of the given resource resolver attribute ornull
if the attribute is not set (or not visible as is the case of theResourceResolverFactory.PASSWORD
or other security sensitive attributes).- Parameters:
name
- The name of the attribute to access- Returns:
- The value of the attribute or
null
if the attribute is not set or not accessible. - Throws:
NullPointerException
- ifname
isnull
.IllegalStateException
- if this resource resolver has already beenclosed
.
-
delete
Delete the resource Deleting a non existing resource leads to no operation nor exception. The changes are transient and require a call tocommit()
for persisting.- Parameters:
resource
- The resource to delete- Throws:
NullPointerException
- if the resource parameter is nullUnsupportedOperationException
- If the resource provider does not allow to delete this resource.PersistenceException
- If the operation fails.IllegalStateException
- if this resource resolver has already beenclosed
.- Since:
- 2.2 (Sling API Bundle 2.2.0)
-
create
@NotNull @NotNull Resource create(@NotNull @NotNull Resource parent, @NotNull @NotNull String name, Map<String, Object> properties) throws PersistenceExceptionAdd a child resource to the given parent resource. The changes are transient and require a call tocommit()
for persisting.- Parameters:
parent
- The parent resourcename
- The name of the child resource - this is a plain name, not a path!properties
- Optional properties for the resource- Returns:
- The new resource
- Throws:
NullPointerException
- if the resource parameter or name parameter is nullIllegalArgumentException
- if the name contains a slashUnsupportedOperationException
- If the underlying resource provider does not support write operations.PersistenceException
- If the operation fails in the underlying resource provider, e.g. in case a resource of that name does already exist.IllegalStateException
- if this resource resolver has already beenclosed
.- Since:
- 2.2 (Sling API Bundle 2.2.0)
-
orderBefore
boolean orderBefore(@NotNull @NotNull Resource parent, @NotNull @NotNull String name, @Nullable @Nullable String followingSiblingName) throws UnsupportedOperationException, PersistenceException, IllegalArgumentException Orders the child resources returned bygetChildren(Resource)
andlistChildren(Resource)
so that a given resource is listed before the given sibling resource. The changes are transient and require a call tocommit()
for persisting.- Parameters:
parent
- the parent resource containing the child resources to order.name
- the name of the child resource inparent
to order. Must be an existing child name.followingSiblingName
- the name of the resource child inparent
which should come after the reordered resource. Ifnull
is given the resource is ordered as last among all sibling resources.- Returns:
true
in case the order of the child resources inparent
has been changed,false
if the given resource were already in the desired order.- Throws:
UnsupportedOperationException
- in case the underlying resource provider does not support ordering or the child resources ofparent
are provided by different providers.IllegalArgumentException
- if eithername
orfollowingSiblingName
are not existing child resource names ofparent
.PersistenceException
- If the operation fails in the underlying resource provider, e.g. in case the parent resource does not support orderable children.- Since:
- 2.13.0 (Sling API Bundle 2.24.0)
- See Also:
-
revert
void revert()Revert all pending changes.- Throws:
IllegalStateException
- if this resource resolver has already beenclosed
.- Since:
- 2.2 (Sling API Bundle 2.2.0)
-
commit
Persist all pending changes.- Throws:
PersistenceException
- If persisting the changes fails.IllegalStateException
- if this resource resolver has already beenclosed
.- Since:
- 2.2 (Sling API Bundle 2.2.0)
-
hasChanges
boolean hasChanges()Are there any pending changes?- Returns:
true
if there are pending changes.- Throws:
IllegalStateException
- if this resource resolver has already beenclosed
.- Since:
- 2.2 (Sling API Bundle 2.2.0)
-
getParentResourceType
Returns the super type of the given resource. This method checks first if the resource itself knows its super type by callingResource.getResourceSuperType()
. If that returnsnull
getParentResourceType(String)
is invoked with the resource type of the resource.- Parameters:
resource
- The resource to return the resource super type for.- Returns:
- The resource super type or
null
. This method also returnsnull
if the provided resource isnull
- Throws:
IllegalStateException
- if this resource resolver has already beenclosed
.- Since:
- 2.3 (Sling API Bundle 2.4.0)
-
getParentResourceType
Returns the super type of the given resource type. This method converts the resource type to a resource path and checks the corresponding resource (considering the search path). If the resource exists, theResource.getResourceSuperType()
method is called.- Parameters:
resourceType
- The resource type whose super type is to be returned.- Returns:
- the super type of the
resourceType
ornull
if the resource given by the resource type does not exist or if it returnsnull
for its super type. It also returnsnull
ifresourceType
is null. - Throws:
IllegalStateException
- if this resource resolver has already beenclosed
.- Since:
- 2.3 (Sling API Bundle 2.4.0)
-
isResourceType
Returnstrue
if the resource type or any of the resource's super type(s) equals the given resource type. In case the type of the given resource or the given resource type starts with one of the resource resolver's search paths it is converted to a relative resource type by stripping off the resource resolver's search path before doing the comparison.- Parameters:
resource
- The resource to checkresourceType
- The resource type to check this resource against.- Returns:
true
if the resource type or any of the resource's super type(s) equals the given resource type.false
is also returned ifresource
orresourceType
arenull
.- Throws:
IllegalStateException
- if this resource resolver has already beenclosed
.- Since:
- 2.3 (Sling API Bundle 2.4.0)
-
refresh
void refresh()The resolver is updated to reflect the latest state. Resources which have changes pending are not discarded.- Throws:
IllegalStateException
- if this resource resolver has already beenclosed
.- Since:
- 2.3 (Sling API Bundle 2.4.0)
-
copy
This method copies the subgraph rooted at, and including, the resource atsrcAbsPath
to the new location atdestAbsPath
and adds it as a child node of the resource atdestAbsPath
. If the copy operation is within a single resource provider, the resource provider can use an optimized copy operation. Otherwise the resource resolver copies resources from one provider to another. The resource atdestAbsPath
needs to exist, if not aPersistenceException
is thrown. If a child resource with the same name already exists atdestAbsPath
aPersistenceException
is thrown. If the resource atsrcAbsPath
does not exist, aPersistenceException
is thrown. The changes are transient and require a call tocommit()
for persisting.- Parameters:
srcAbsPath
- the path of the resource to be copied.destAbsPath
- the location to which the resource atsrcAbsPath
is to be copied.- Returns:
- The destination resource.
- Throws:
PersistenceException
- If an error occurs.UnsupportedOperationException
- If one of the destination resource providers does not allow to create a resource at that location.IllegalStateException
- if this resource resolver has already beenclosed
.- Since:
- 2.9 (Sling API Bundle 2.11.0)
-
move
This method moves the subgraph rooted at, and including, the resource atsrcAbsPath
to the new location atdestAbsPath
and adds it as a child node of the resource atdestAbsPath
. If the move operation is within a single resource provider, the resource provider can use an optimized move operation. Otherwise the resource resolver moves resources from one provider to another. The resource atdestAbsPath
needs to exist, if not aPersistenceException
is thrown. If a child resource with the same name already exists atdestAbsPath
aPersistenceException
is thrown. If the resource atsrcAbsPath
does not exist, aPersistenceException
is thrown. The changes are transient and require a call tocommit()
for persisting.- Parameters:
srcAbsPath
- the path of the resource to be copied.destAbsPath
- the location to which the resource atsrcAbsPath
is to be moved.- Returns:
- The destination resource.
- Throws:
PersistenceException
- If an error occurs.UnsupportedOperationException
- If one of the destination resource providers does not allow to create a resource at that location.IllegalStateException
- if this resource resolver has already beenclosed
.- Since:
- 2.9 (Sling API Bundle 2.11.0)
-
getPropertyMap
Returns a mutable map to store temporary objects. This map is suited to store objects which share the same lifecycle as the resource resolver. The resource resolver itself does not use this map. The resource resolver will clear the map duringclose()
, so afterwards the map is empty. If a stored value implements theCloseable
interface, the ResourceResolver will invoke theclose
method} of the value before clearing the map. Clients should not use this map to store objects which have a lifecycle beyond the resource resolver. Any object stored into this map after the resource resolver has been closed will not be closed. The returned map is not thread-safe.- Returns:
- the property map
- Since:
- 2.13.0 (Sling API Bundle 2.24.0)
- See Also:
-
resolve(HttpServletRequest, String)
instead.