67 * Neither the name of the copyright holder nor the names of
68 contributors may be used to endorse or promote products derived from
69 this software without specific prior written permission.
70
71 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
72 IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
73 TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
74 PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDER
75 BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
76 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
77 SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
78 BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
79 WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
80 OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
81 ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
82 */
83
84 package jdk.internal.dynalink.beans;
85
86 import java.io.Serializable;
87
88 /**
89 * Object that represents the static facet of a class (its static methods, properties, and fields, as well as
90 * construction of instances using "dyn:new"). Objects of this class are recognized by the {@link BeansLinker} as being
91 * special, and operations on them will be linked against the represented class' static facet. The "class" synthetic
92 * property is additionally recognized and returns the Java {@link Class} object, as per {@link #getRepresentedClass()}
93 * method. Conversely, {@link Class} objects exposed through {@link BeansLinker} expose the "static" synthetic property
94 * which returns an instance of this class.
95 */
96 public class StaticClass implements Serializable {
97 private static final ClassValue<StaticClass> staticClasses = new ClassValue<StaticClass>() {
98 @Override
99 protected StaticClass computeValue(final Class<?> type) {
100 return new StaticClass(type);
101 }
102 };
103
104 private static final long serialVersionUID = 1L;
105
106 private final Class<?> clazz;
107
108 /*private*/ StaticClass(final Class<?> clazz) {
109 clazz.getClass(); // NPE check
110 this.clazz = clazz;
111 }
112
113 /**
114 * Retrieves the {@link StaticClass} instance for the specified class.
115 * @param clazz the class for which the static facet is requested.
116 * @return the {@link StaticClass} instance representing the specified class.
117 */
118 public static StaticClass forClass(final Class<?> clazz) {
119 return staticClasses.get(clazz);
120 }
121
122 /**
123 * Returns the represented Java class.
124 * @return the represented Java class.
125 */
126 public Class<?> getRepresentedClass() {
127 return clazz;
128 }
129
130 @Override
|
67 * Neither the name of the copyright holder nor the names of
68 contributors may be used to endorse or promote products derived from
69 this software without specific prior written permission.
70
71 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
72 IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
73 TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
74 PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDER
75 BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
76 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
77 SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
78 BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
79 WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
80 OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
81 ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
82 */
83
84 package jdk.internal.dynalink.beans;
85
86 import java.io.Serializable;
87 import java.util.Objects;
88
89 /**
90 * Object that represents the static facet of a class (its static methods, properties, and fields, as well as
91 * construction of instances using "dyn:new"). Objects of this class are recognized by the {@link BeansLinker} as being
92 * special, and operations on them will be linked against the represented class' static facet. The "class" synthetic
93 * property is additionally recognized and returns the Java {@link Class} object, as per {@link #getRepresentedClass()}
94 * method. Conversely, {@link Class} objects exposed through {@link BeansLinker} expose the "static" synthetic property
95 * which returns an instance of this class.
96 */
97 public class StaticClass implements Serializable {
98 private static final ClassValue<StaticClass> staticClasses = new ClassValue<StaticClass>() {
99 @Override
100 protected StaticClass computeValue(final Class<?> type) {
101 return new StaticClass(type);
102 }
103 };
104
105 private static final long serialVersionUID = 1L;
106
107 private final Class<?> clazz;
108
109 /*private*/ StaticClass(final Class<?> clazz) {
110 this.clazz = Objects.requireNonNull(clazz);
111 }
112
113 /**
114 * Retrieves the {@link StaticClass} instance for the specified class.
115 * @param clazz the class for which the static facet is requested.
116 * @return the {@link StaticClass} instance representing the specified class.
117 */
118 public static StaticClass forClass(final Class<?> clazz) {
119 return staticClasses.get(clazz);
120 }
121
122 /**
123 * Returns the represented Java class.
124 * @return the represented Java class.
125 */
126 public Class<?> getRepresentedClass() {
127 return clazz;
128 }
129
130 @Override
|