When an application closes a connection, the connection is returned to the pool.Applications that use the Persistence API specify the DataSource object they are using in the jta-data-source element of the persistence.xml file:<jta-data-source>jdbc/MyOrderDB</jta-data-source>...
Opens or creates a file, returning a file channel to access the file. Theoptionsparameter determines how the file is opened. TheREADandWRITEoptions determine if the file should be opened for reading and/or writing. If neither option (or theAPPENDoption) is contained in the array then the file...
A file channel is aSeekableByteChannelthat is connected to a file. It has a currentpositionwithin its file which can be both#position() queriedand#position(long) modified. The file itself contains a variable-length sequence of bytes that can be read and written and whose current#size size...
Opens or creates a file for reading and/or writing, returning an asynchronous file channel to access the file. Open(IPath, IOpenOption[]) Opens or creates a file for reading and/or writing, returning an asynchronous file channel to access the file. Read(ByteBuffer, Int64) Reads a sequen...
If the file name contains spaces, then it must be enclosed in quotation marks. --view Opens following files in viewer mode (read-only). --show Opens and starts the following presentation documents of each immediately. Files are closed after the showing. Files other than Impress documents are...
As an example, we could have added an output stream for compressing data between a DataOutputStream and a FileOutputStream. When a stream is closed, it also closes the stream that it is decorating. Going back again to the example, when close() is called on the instance of DataOutputStrea...
Programs use byte streams to perform input and output of 8-bit bytes. All byte stream classes are descended from InputStream and OutputStream. There are many byte stream classes. To demonstrate how byte streams work, we'll focus on the file I/O byte streams, FileInputStream and FileOutput...
For example, you will not find here a list of exactly which sound file formats are supported in the reference implementation. (Because the Java Sound API makes "plug-in" services possible, API implementors and/or third parties can add support for new formats, ports with special features, etc...
If you can pause any file systems on the disk long enough to take a snapshot, your snapshot should be complete. Nevertheless, if you cannot pause all file writes to the disk, you should unmount the disk from within the Lightsail instance, issue the create disk snapshot command,...
2.6 File Locking 2.7 Regular Expressions In this chapter, we cover the Java Application Programming Interfaces (APIs) for input and output. You will learn how to access files and directories and how to read and write data in binary and text format. This chapter also shows you the object seri...