| /* |
| * $Id$ |
| * |
| * Copyright 2003 (C) James Strachan and Bob Mcwhirter. All Rights Reserved. |
| * |
| * Redistribution and use of this software and associated documentation |
| * ("Software"), with or without modification, are permitted provided that the |
| * following conditions are met: |
| * 1. Redistributions of source code must retain copyright statements and |
| * notices. Redistributions must also contain a copy of this document. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * 3. The name "groovy" must not be used to endorse or promote products |
| * derived from this Software without prior written permission of The Codehaus. |
| * For written permission, please contact info@codehaus.org. |
| * 4. Products derived from this Software may not be called "groovy" nor may |
| * "groovy" appear in their names without prior written permission of The |
| * Codehaus. "groovy" is a registered trademark of The Codehaus. |
| * 5. Due credit should be given to The Codehaus - http://groovy.codehaus.org/ |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE CODEHAUS AND CONTRIBUTORS ``AS IS'' AND ANY |
| * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
| * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| * DISCLAIMED. IN NO EVENT SHALL THE CODEHAUS OR ITS CONTRIBUTORS BE LIABLE FOR |
| * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
| * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
| * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH |
| * DAMAGE. |
| * |
| */ |
| package groovy.lang; |
| |
| import java.lang.reflect.Modifier; |
| |
| import org.codehaus.groovy.runtime.MetaClassHelper; |
| import org.codehaus.groovy.runtime.typehandling.DefaultTypeTransformation; |
| |
| /** |
| * Represents a property on a bean which may have a getter and/or a setter |
| * |
| * @author <a href="mailto:james@coredevelopers.net">James Strachan</a> |
| * @author Pilho Kim |
| * @version $Revision$ |
| */ |
| public class MetaBeanProperty extends MetaProperty { |
| |
| private MetaMethod getter; |
| private MetaMethod setter; |
| private MetaFieldProperty field; |
| |
| public MetaBeanProperty(String name, Class type, MetaMethod getter, MetaMethod setter) { |
| super(name, type); |
| this.getter = getter; |
| this.setter = setter; |
| } |
| |
| /** |
| * Get the property of the given object. |
| * |
| * @param object which to be got |
| * @return the property of the given object |
| * @throws Exception if the property could not be evaluated |
| */ |
| public Object getProperty(Object object) { |
| if (getter == null) { |
| //TODO: we probably need a WriteOnlyException class |
| throw new GroovyRuntimeException("Cannot read write-only property: " + name); |
| } |
| return getter.invoke(object, MetaClassHelper.EMPTY_ARRAY); |
| } |
| |
| /** |
| * Set the property on the given object to the new value. |
| * |
| * @param object on which to set the property |
| * @param newValue the new value of the property |
| * @throws RuntimeException if the property could not be set |
| */ |
| public void setProperty(Object object, Object newValue) { |
| if (setter == null) { |
| throw new GroovyRuntimeException("Cannot set read-only property: " + name); |
| } |
| newValue = DefaultTypeTransformation.castToType(newValue, getType()); |
| setter.invoke(object, new Object[] { newValue }); |
| } |
| |
| /** |
| * Get the getter method. |
| */ |
| public MetaMethod getGetter() { |
| return getter; |
| } |
| |
| /** |
| * Get the setter method. |
| */ |
| public MetaMethod getSetter() { |
| return setter; |
| } |
| |
| /** |
| * This is for MetaClass to patch up the object later when looking for get*() methods. |
| */ |
| void setGetter(MetaMethod getter) { |
| this.getter = getter; |
| } |
| |
| /** |
| * This is for MetaClass to patch up the object later when looking for set*() methods. |
| */ |
| void setSetter(MetaMethod setter) { |
| this.setter = setter; |
| } |
| |
| public int getModifiers() { |
| if (setter!=null && getter==null) return setter.getModifiers(); |
| if (getter!=null && setter==null) return getter.getModifiers(); |
| int modifiers = getter.getModifiers() | setter.getModifiers(); |
| int visibility = 0; |
| if (Modifier.isPublic(modifiers)) visibility = Modifier.PUBLIC; |
| if (Modifier.isProtected(modifiers)) visibility = Modifier.PROTECTED; |
| if (Modifier.isPrivate(modifiers)) visibility = Modifier.PRIVATE; |
| int states = getter.getModifiers() & setter.getModifiers(); |
| states &= ~(Modifier.PUBLIC|Modifier.PROTECTED|Modifier.PRIVATE); |
| states |= visibility; |
| return states; |
| } |
| |
| public void setField(MetaFieldProperty f) { |
| this.field = f; |
| } |
| |
| public MetaFieldProperty getField() { |
| return field; |
| } |
| } |