Package org.apache.cassandra.auth

Class FunctionResource

java.lang.Object
org.apache.cassandra.auth.FunctionResource
All Implemented Interfaces:
IResource
public class FunctionResource extends Object implements IResource
IResource implementation representing functions. The root level "functions" resource represents the collection of all Functions. "functions" - root level resource representing all functions defined across every keyspace "functions/keyspace" - keyspace level resource to apply permissions to all functions within a keyspace "functions/keyspace/function" - a specific function, scoped to a given keyspace

  • Method Details

    • root

      public static FunctionResource root()
      Returns:
      the root-level resource.

    • keyspace

      public static FunctionResource keyspace(String keyspace)
      Creates a FunctionResource representing the collection of functions scoped to a specific keyspace.
      Parameters:
      keyspace - name of the keyspace
      Returns:
      FunctionResource instance representing all of the keyspace's functions

    • function

      public static FunctionResource function(String keyspace, String name, List<AbstractType<?>> argTypes)
      Creates a FunctionResource representing a specific, keyspace-scoped function.
      Parameters:
      keyspace - the keyspace in which the function is scoped
      name - name of the function.
      argTypes - the types of the arguments to the function
      Returns:
      FunctionResource instance reresenting the function.

    • function

      public static FunctionResource function(UserFunction function)

    • functionFromCql

      public static FunctionResource functionFromCql(String keyspace, String name, List<CQL3Type.Raw> argTypes)
      Creates a FunctionResource representing a specific, keyspace-scoped function. This variant is used to create an instance during parsing of a CQL statement. It includes transposition of the arg types from CQL types to AbstractType implementations
      Parameters:
      keyspace - the keyspace in which the function is scoped
      name - name of the function.
      argTypes - the types of the function arguments in raw CQL form
      Returns:
      FunctionResource instance reresenting the function.

    • functionFromCql

      public static FunctionResource functionFromCql(FunctionName name, List<CQL3Type.Raw> argTypes)

    • fromName

      public static FunctionResource fromName(String name)
      Parses a resource name into a FunctionResource instance. A valid resource name for function should be in the follow format: functions/KEYSPACE/FUNCTION_NAME[FUNCTION_ARGS] Note that 1. FUNCTION_NAME could contain any character due to the use of quoted text in CQL. 2. FUNCTION_ARGS could be empty. If it is not empty, it is expressed in this format: FUNCTION_ARG1^FUNCTION_ARG2... where ^ is the delimiter for arguments
      Parameters:
      name - Name of the function resource.
      Returns:
      FunctionResource instance matching the name.

    • getName

      public String getName()
      Specified by:
      getName in interface IResource
      Returns:
      Printable name of the resource.

    • getKeyspace

      public String getKeyspace()
      Get the name of the keyspace this resource relates to. In the case of the global root resource, return null
      Returns:
      the keyspace name of this resource, or null for the root resource

    • getFunctionName

      public FunctionName getFunctionName()
      Returns:
      a qualified FunctionName instance for a function-level resource. Throws IllegalStateException if called on the resource which doens't represent a single function.

    • getParent

      public IResource getParent()
      Description copied from interface: IResource
      Gets next resource in the hierarchy. Call hasParent first to make sure there is one.
      Specified by:
      getParent in interface IResource
      Returns:
      Parent of the resource, if any. Throws IllegalStateException if it's the root-level resource.

    • hasParent

      public boolean hasParent()
      Description copied from interface: IResource
      Indicates whether or not this resource has a parent in the hierarchy. Please perform this check before calling getParent() method.
      Specified by:
      hasParent in interface IResource
      Returns:
      Whether or not the resource has a parent.

    • exists

      public boolean exists()
      Specified by:
      exists in interface IResource
      Returns:
      Whether or not this resource exists in Cassandra.

    • applicablePermissions

      public Set<Permission> applicablePermissions()
      Description copied from interface: IResource
      Returns the set of Permissions that may be applied to this resource Certain permissions are not applicable to particular types of resources. For instance, it makes no sense to talk about CREATE permission on table, or SELECT on a Role. Here we filter a set of permissions depending on the specific resource they're being applied to. This is necessary because the CQL syntax supports ALL as wildcard, but the set of permissions that should resolve to varies by IResource.
      Specified by:
      applicablePermissions in interface IResource
      Returns:
      the permissions that may be granted on the specific resource

    • compareTo

      public int compareTo(FunctionResource o)

    • toString

      public String toString()
      Overrides:
      toString in class Object

    • equals

      public boolean equals(Object o)
      Overrides:
      equals in class Object

    • hashCode

      public int hashCode()
      Overrides:
      hashCode in class Object