Source Code Cross Referenced for Binary.java in  » 6.0-JDK-Modules » jsr-283 » javax » jcr » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » 6.0 JDK Modules » jsr 283 » javax.jcr 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


01:        /*
02:         * Copyright 2006 Day Management AG, Switzerland. All rights reserved.
03:         */
04:        package javax.jcr;
05:
06:        import java.io.InputStream;
07:
08:        /**
09:         * The <code>Binary</code> interface and its related methods in
10:         * <code>Property</code>, <code>Value</code> and <code>ValueFactory</code>
11:         * replace the deprecated {@link Value#getStream} and {@link Property#getStream}
12:         * methods. The <code>Binary</code> interface allows repositories to provide
13:         * implementations that handle JCR BINARY values in the most efficient manner,
14:         * given the specifics of their internal handling of the binary data.
15:         *
16:         * @since JCR 2.0
17:         */
18:        public interface Binary {
19:
20:            /**
21:             * Returns an <code>InputStream</code> representation of this value.
22:             *
23:             * @return A stream representation of this value.
24:             * @throws IllegalStateException if {@link #acquire} has not yet or
25:             *         {@link #release} has already been called on this
26:             *         <code>Binary</code> object instance.
27:             * @throws RepositoryException if another error occurs.
28:             */
29:            InputStream getStream() throws IllegalStateException,
30:                    RepositoryException;
31:
32:            /**
33:             * Returns a byte array representation of this value.
34:             *
35:             * @return a byte array representation of this value.
36:             * @throws IllegalStateException if {@link #acquire} has not yet or
37:             *         {@link #release} has already been called on this
38:             *         <code>Binary</code> object instance.
39:             * @throws RepositoryException if another error occurs.
40:             */
41:            byte[] getBytes() throws IllegalStateException, RepositoryException;
42:
43:            /**
44:             * Returns the size of this value in bytes.
45:             *
46:             * @return the size of this value in bytes.
47:             * @throws IllegalStateException if {@link #acquire} has not yet or
48:             *         {@link #release} has already been called on this
49:             *         <code>Binary</code> object instance.
50:             * @throws RepositoryException if another error occurs.
51:             */
52:            long getSize() throws IllegalStateException, RepositoryException;
53:
54:            /**
55:             * Clients must call this method before using any of the other methods of
56:             * this interface, other than {@link #release}.
57:             * <p/>
58:             * This method is used by the implementation to track the usage of
59:             * <code>Binary</code> objects and perform any preparation that may be
60:             * necessary for returning the binary data (through either {@link #getStream}
61:             * or {@link #getBytes}) or reporting the size of the binary data (through
62:             * {@link #getSize}). The details of any such preparation will be specific
63:             * to the implementation.
64:             *
65:             * @throws IllegalStateException if {@link #release} has already been
66:             *         called on this <code>Binary</code> object instance.
67:             * @throws RepositoryException if another error occurs.
68:             */
69:            void acquire() throws IllegalStateException, RepositoryException;
70:
71:            /**
72:             * Clients must call this method when they are finished with a
73:             * <code>Binary</code> object instance in order to allow the implementation
74:             * to release any resources used during the lifetime of the object. The
75:             * details of any such clean-up will be specific to the implementation.
76:             * <p/>
77:             * It is legal for this method to be called even if {@link #acquire} has not
78:             * yet been called, though in a typical implementation this will have no
79:             * effect.
80:             *
81:             * @throws RepositoryException if an error occurs.
82:             */
83:            void release() throws RepositoryException;
84:        }
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