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Java Source Code / Java Documentation » Security » acegi security » org.acegisecurity.acl.basic

Source Cross Reference Class Diagram Java Document (Java Doc)

java.lang .Object

org.acegisecurity.acl.basic .BasicAclProvider

BasicAclProvider

public class BasicAclProvider implements AclProvider,InitializingBean(Code)

Retrieves access control lists (ACL) entries for domain object instances from a data access object (DAO).

This implementation will provide ACL lookup services for any object that it can determine the AclObjectIdentity for by calling the BasicAclProvider.obtainIdentity(Object) method. Subclasses can override this method if they only want the BasicAclProvider responding to particular domain object instances.

BasicAclProvider will walk an inheritance hierarchy if a BasicAclEntry returned by the DAO indicates it has a parent. NB: inheritance occurs at a domain instance object level. It does not occur at an ACL recipient level. This means allBasicAclEntrys for a given domain instance object must have the same parent identity, or allBasicAclEntrys must have null as their parent identity.

A cache should be used. This is provided by the BasicAclEntryCache . BasicAclProvider by default is setup to use the NullAclEntryCache , which performs no caching.

To implement the BasicAclProvider.getAcls(Object,Authentication) method, BasicAclProvider requires a EffectiveAclsResolver to be configured against it. By default the GrantedAuthorityEffectiveAclsResolver is used.

author:
Ben Alex
version:
$Id: BasicAclProvider.java 1782 2007-02-22 23:57:49Z luke_t $

Method Summary
public void	afterPropertiesSet()
public AclEntry[]	getAcls(Object domainInstance)
public AclEntry[]	getAcls(Object domainInstance, Authentication authentication)
public BasicAclDao	getBasicAclDao()
public BasicAclEntryCache	getBasicAclEntryCache()
public Class	getDefaultAclObjectIdentityClass()
public EffectiveAclsResolver	getEffectiveAclsResolver()
public Class	getRestrictSupportToClass()
protected AclObjectIdentity	obtainIdentity(Object domainInstance) This method looks up the `AclObjectIdentity` of a passed domain object instance. This implementation attempts to obtain the `AclObjectIdentity` via reflection inspection of the class for the AclObjectIdentityAware interface.
public void	setBasicAclDao(BasicAclDao basicAclDao)
public void	setBasicAclEntryCache(BasicAclEntryCache basicAclEntryCache)
public void	setDefaultAclObjectIdentityClass(Class defaultAclObjectIdentityClass) Allows selection of the `AclObjectIdentity` class that an attempt should be made to construct if the passed object does not implement `AclObjectIdentityAware`. NB: Any `defaultAclObjectIdentityClass`must provide a public constructor that accepts an `Object`.
public void	setEffectiveAclsResolver(EffectiveAclsResolver effectiveAclsResolver)
public void	setRestrictSupportToClass(Class restrictSupportToClass) If set to a value other than `null`, the BasicAclProvider.supports(Object) method will only support the indicates class.
public boolean	supports(Object domainInstance)

Method Detail

afterPropertiesSet
public void afterPropertiesSet()(Code)

getAcls
public AclEntry[] getAcls(Object domainInstance)(Code)

getAcls
public AclEntry[] getAcls(Object domainInstance, Authentication authentication)(Code)

getBasicAclDao
public BasicAclDao getBasicAclDao()(Code)

getBasicAclEntryCache
public BasicAclEntryCache getBasicAclEntryCache()(Code)

getDefaultAclObjectIdentityClass
public Class getDefaultAclObjectIdentityClass()(Code)

getEffectiveAclsResolver
public EffectiveAclsResolver getEffectiveAclsResolver()(Code)

getRestrictSupportToClass
public Class getRestrictSupportToClass()(Code)

obtainIdentity
protected AclObjectIdentity obtainIdentity(Object domainInstance)(Code)
	This method looks up the `AclObjectIdentity` of a passed domain object instance. This implementation attempts to obtain the `AclObjectIdentity` via reflection inspection of the class for the AclObjectIdentityAware interface. If this fails, an attempt is made to construct a BasicAclProvider.getDefaultAclObjectIdentityClass() object by passing the domain instance object into its constructor. Parameters: domainInstance - the domain object instance (never `null`) an ACL object identity, or `null` if one could not be obtained

setBasicAclDao
public void setBasicAclDao(BasicAclDao basicAclDao)(Code)

setBasicAclEntryCache
public void setBasicAclEntryCache(BasicAclEntryCache basicAclEntryCache)(Code)

setDefaultAclObjectIdentityClass
public void setDefaultAclObjectIdentityClass(Class defaultAclObjectIdentityClass)(Code)
	Allows selection of the `AclObjectIdentity` class that an attempt should be made to construct if the passed object does not implement `AclObjectIdentityAware`. NB: Any `defaultAclObjectIdentityClass`must provide a public constructor that accepts an `Object`. Otherwise it is not possible for the `BasicAclProvider` to try to create the `AclObjectIdentity` instance at runtime. Parameters: defaultAclObjectIdentityClass -

setEffectiveAclsResolver
public void setEffectiveAclsResolver(EffectiveAclsResolver effectiveAclsResolver)(Code)

setRestrictSupportToClass
public void setRestrictSupportToClass(Class restrictSupportToClass)(Code)
	If set to a value other than `null`, the BasicAclProvider.supports(Object) method will only support the indicates class. This is useful if you wish to wire multiple `BasicAclProvider`s in a list of `AclProviderManager.providers` but only have particular instances respond to particular domain object types. Parameters: restrictSupportToClass - the class to restrict this `BasicAclProvider` to service request for,or `null` (the default) if the `BasicAclProvider` should respond to every classpresented

supports
public boolean supports(Object domainInstance)(Code)
	Indicates support for the passed object. An object will only be supported if it (i) is allowed to be supported as defined by the BasicAclProvider.setRestrictSupportToClass(Class) method, and (ii) if an `AclObjectIdentity` is returned by BasicAclProvider.obtainIdentity(Object) for that object. Parameters: domainInstance - the instance to check `true` if this provider supports the passed object, `false` otherwise

Methods inherited from java.lang.Object

native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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