Open the resource execute the function and either return all errors as a list or the result of the function execution.
Open the resource execute the function and either return all errors as a list or the result of the function execution.
On open and close error handlers in ResourceContext are called. If they then raise errors the errors are captured and returned as a Right[List[Throwable]]
Perhaps the worst method I have ever written :-(
Add a CloseAction that will be executed each time the resource is closed.
Add a CloseAction that will be executed each time the resource is closed.
the action to add
a new resource instance with the close action added
Get the Resource context associated with this Resource instance.
Get the Resource context associated with this Resource instance.
the associated ResourceContext
as Resources are immutable objects a given Resource instance will always be associated with the same ResourceContext
Creates a new instance of the underlying resource (or opens it).
Creates a new instance of the underlying resource (or opens it). Sometimes the code block used to create the Resource is non-reusable in which case this Resource can only be used once. This is not recommended.
When creating a resource it is recommended to pass the code block for creating the resource to the resource so that the resource can be reused. Of course this is not always possible
This method should only be used with care in cases when Automatic
Resource Management cannot be used because the
InputStream must be closed manually.
This is public only to permit interoperability with certain Java APIs. A better pattern of use should be:
resource.acquireFor {
// call java API
}or
val calculatedResult = resource.acquireAndGet { // cal java API that returns a result }
the actual resource that has been opened
normally the error handler registered with the associated ResourceContext will handle any errors opening the resource, but when calling this method the caller must handle any possible errors that are raised.
Create a Resource instance that is configured with the new ResourceContext
Create a Resource instance that is configured with the new ResourceContext
A new ResourceContext
a new instance configured with the new context
Update the current ResourceContext and return a new Resource instance with the updated context
Update the current ResourceContext and return a new Resource instance with the updated context
A function for transforming the current context to a new context with new values.
a new instance configured with the new context
Write several characters to the underlying object
Write several characters to the underlying object
Execute the function 'f' passing an WriteChars instance that performs all operations on a single opened connection to the underlying resource.
Execute the function 'f' passing an WriteChars instance that performs all operations on a single opened connection to the underlying resource. Typically each call to one of the Output's methods results in a new connection. For example if the underlying OutputStream truncates the file each time the connection is made then calling write two times will result in the contents of the second write overwriting the second write.
Even if the underlying resource is an appending, using open will be more efficient since the connection only needs to be made a single time.
the result of the function
Write several strings.
Write several strings. The open options that can be used are dependent on the implementation and implementors should clearly document which option are permitted.
The data to write
A string to add between each string. It is not added to the before the first string or after the last.
A ManagedResource for accessing and using Writers. Class can be created using the scalax.io.Resource object.