groovy.lang.MetaClass.getAttribute()方法的使用及代码示例

x33g5p2x  于2022-01-25 转载在 其他  
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本文整理了Java中groovy.lang.MetaClass.getAttribute()方法的一些代码示例，展示了MetaClass.getAttribute()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。MetaClass.getAttribute()方法的具体详情如下：
包路径：groovy.lang.MetaClass
类名称：MetaClass
方法名：getAttribute

MetaClass.getAttribute介绍

[英]Retrieves the value of an attribute (field). This method is to support the Groovy runtime and not for general client API usage.
[中]检索属性（字段）的值。这种方法是为了支持Groovy运行时，而不是用于一般的客户端API。

代码示例

代码示例来源：origin: org.codehaus.groovy/groovy

public Object getAttribute(Object object, String attribute) {
  return delegate.getAttribute(object, attribute);
}

代码示例来源：origin: org.codehaus.groovy/groovy

public Object getAttribute(Class sender, Object receiver, String messageName, boolean useSuper) {
  return this.delegate.getAttribute(sender, receiver, messageName, useSuper);
}

代码示例来源：origin: org.codehaus.groovy/groovy

public static Object getAttribute(Object object, String attribute) {
  if (object == null) {
    object = NullObject.getNullObject();
  }
  if (object instanceof Class) {
    return metaRegistry.getMetaClass((Class) object).getAttribute(object, attribute);
  } else if (object instanceof GroovyObject) {
    return ((GroovyObject) object).getMetaClass().getAttribute(object, attribute);
  } else {
    return metaRegistry.getMetaClass(object.getClass()).getAttribute(object, attribute);
  }
}

代码示例来源：origin: org.codehaus.groovy/groovy

public Object getAttribute(Object object, String attribute) {
  final Object owner = getOwner();
  final MetaClass ownerMetaClass = getOwnerMetaClass(owner);
  return ownerMetaClass.getAttribute(owner, attribute);
}

代码示例来源：origin: org.codehaus.groovy/groovy

public static Object getGroovyObjectField(Class senderClass, GroovyObject receiver, String messageName) throws Throwable {
  try  {
    return receiver.getMetaClass().getAttribute(receiver, messageName);
  } catch (GroovyRuntimeException gre) {
    throw unwrap(gre);
  }
}

代码示例来源：origin: org.codehaus.groovy/groovy

public Object getAttribute(Class sender, Object receiver, String messageName, boolean useSuper) {
  final Object owner = getOwner();
  final MetaClass ownerMetaClass = getOwnerMetaClass(owner);
  return ownerMetaClass.getAttribute(sender, receiver, messageName, useSuper);
}

代码示例来源：origin: org.codehaus.groovy/groovy

public static Object getGroovyObjectFieldSafe(Class senderClass, GroovyObject receiver, String messageName) throws Throwable {
  if (receiver == null) return null;
  try {
    return receiver.getMetaClass().getAttribute(receiver, messageName);
  } catch (GroovyRuntimeException gre) {
    throw unwrap(gre);
  }
}

代码示例来源：origin: org.codehaus.groovy/groovy

public static Object getFieldOnSuper(Class senderClass, Object receiver, String messageName) throws Throwable {
  try {
    if (receiver instanceof Class) {
      return InvokerHelper.getAttribute(receiver, messageName);
    } else {
      MetaClass mc = ((GroovyObject) receiver).getMetaClass();
      return mc.getAttribute(senderClass, receiver, messageName, true);
    }
  } catch (GroovyRuntimeException gre) {
    throw unwrap(gre);
  }
}

代码示例来源：origin: org.codehaus.groovy/groovy

@Override
public Object getAttribute(Class sender, Object object, String attribute, boolean useSuper, boolean fromInsideClass) {
  if (object instanceof Class) {
    return getStaticMetaClass().getAttribute(sender, object, attribute, useSuper);
  } else {
    if (!attributeInitDone) initAttributes();
    CachedField mfp = attributes.get(attribute);
    if (mfp == null) {
      return CLOSURE_METACLASS.getAttribute(sender, object, attribute, useSuper);
    } else {
      return mfp.getProperty(object);
    }
  }
}

代码示例来源：origin: groovy/groovy-core

assertTrue(((Closure) obj.getMetaClass().getAttribute(obj, "x")).call() == obj.x.call());
assertTrue(obj.invokeMethod("x", new Object[]{}) == obj.x());
assertTrue(((Closure) obj.getMetaClass().getAttribute(obj, "x")).call() == newX1.call());
assertTrue(((Closure) obj.getMetaClass().getAttribute(obj, "x")).call() == newX3.call());

代码示例来源：origin: groovy/groovy-core

assertTrue(((Closure) obj.getMetaClass().getAttribute(obj, "x")).call() == obj.x.call());
assertTrue(obj.invokeMethod("x", new Object[]{}) == obj.x());
assertTrue(((Closure) obj.getMetaClass().getAttribute(obj, "x")).call() == newX1.call());
assertTrue(((Closure) obj.getMetaClass().getAttribute(obj, "x")).call() == newX3.call());

代码示例来源：origin: groovy/groovy-core

assertTrue(((Closure) obj.getMetaClass().getAttribute(obj, "x")).call() == obj.x.call());
assertTrue(obj.invokeMethod("x", new Object[]{}) == obj.x());
assertTrue(((Closure) obj.getMetaClass().getAttribute(obj, "x")).call() == newX1.call());
assertTrue(((Closure) obj.getMetaClass().getAttribute(obj, "x")).call() == newX3.call());

代码示例来源：origin: groovy/groovy-core

public void testMetaClassNameHandling() {
  final Tt1gi obj = new Tt1gi();  // Test class implementing GroovyObject
  final String newX = "new x";
  final String newX1 = "new x1";
  final String newX2 = "new x2";
  final String newX3 = "new x3";
  assertTrue("dynamic property".equals(obj.getProperty("x")));
  assertTrue(obj.getMetaClass().getAttribute(obj, "x") == obj.x);
  assertTrue("dynamic method".equals(obj.invokeMethod("x", new Object[]{})));
  obj.setProperty("x", newX);
  obj.getMetaClass().setAttribute(obj, "x", newX1);
  assertTrue("dynamic property".equals(obj.getProperty("x")));
  assertTrue(obj.getMetaClass().getAttribute(obj, "x") == newX1);
  obj.setX(newX2);
  obj.x = newX3;
  assertTrue("dynamic property".equals(obj.getProperty("x")));
  assertTrue(obj.getMetaClass().getAttribute(obj, "x") == newX3);
}

代码示例来源：origin: groovy/groovy-core

public void testMetaClassNameHandling1() {
  final Tt1gi obj = new Tt1gi() {
  }; // repeat test with subclass
  final String newX = "new x";
  final String newX1 = "new x1";
  final String newX2 = "new x2";
  final String newX3 = "new x3";
  assertTrue("dynamic property".equals(obj.getProperty("x")));
  assertTrue(obj.getMetaClass().getAttribute(obj, "x") == obj.x);
  assertTrue("dynamic method".equals(obj.invokeMethod("x", new Object[]{})));
  obj.setProperty("x", newX);
  obj.getMetaClass().setAttribute(obj, "x", newX1);
  assertTrue("dynamic property".equals(obj.getProperty("x")));
  assertTrue(obj.getMetaClass().getAttribute(obj, "x") == newX1);
  obj.setX(newX2);
  obj.x = newX3;
  assertTrue("dynamic property".equals(obj.getProperty("x")));
  assertTrue(obj.getMetaClass().getAttribute(obj, "x") == newX3);
}

代码示例来源：origin: groovy/groovy-core

assertTrue(((Closure) obj.getMetaClass().getAttribute(obj, "x")).call() == obj.x.call());
assertTrue(obj.invokeMethod("x", new Object[]{}) == obj.x());
assertTrue(((Closure) obj.getMetaClass().getAttribute(obj, "x")).call() == newX1.call());
assertTrue(((Closure) obj.getMetaClass().getAttribute(obj, "x")).call() == newX3.call());

代码示例来源：origin: org.codehaus.groovy/groovy

if (isStatic && object != theClass) {
  MetaClass mc = registry.getMetaClass((Class) object);
  return mc.getAttribute(sender, object, attribute, useSuper);

代码示例来源：origin: groovy/groovy-core

public void testObjectSupportNameHandling() {
  final Tt1go obj = new Tt1go();  // Test subclass of GroovyObjectSupport
  final String newX = "new x";
  final String newX1 = "new x1";
  final String newX2 = "new x2";
  final String newX3 = "new x3";
  assertTrue(obj.getProperty("x") == obj.getX());
  assertTrue(obj.getMetaClass().getAttribute(obj, "x") == obj.x);
  assertTrue(obj.invokeMethod("x", new Object[]{}) == obj.x());
  obj.setProperty("x", newX);
  obj.getMetaClass().setAttribute(obj, "x", newX1);
  assertTrue(obj.getProperty("x") == newX);
  assertTrue(obj.getMetaClass().getAttribute(obj, "x") == newX1);
  obj.setX(newX2);
  obj.x = newX3;
  assertTrue(obj.getProperty("x") == newX2);
  assertTrue(obj.getMetaClass().getAttribute(obj, "x") == newX3);
}

代码示例来源：origin: groovy/groovy-core

public void testObjectSupportNameHandling1() {
  final Tt1go obj = new Tt1go() {
  }; // repeat test with subclass
  final String newX = "new x";
  final String newX1 = "new x1";
  final String newX2 = "new x2";
  final String newX3 = "new x3";
  assertTrue(obj.getProperty("x") == obj.getX());
  assertTrue(obj.getMetaClass().getAttribute(obj, "x") == obj.x);
  assertTrue(obj.invokeMethod("x", new Object[]{}) == obj.x());
  obj.setProperty("x", newX);
  obj.getMetaClass().setAttribute(obj, "x", newX1);
  assertTrue(obj.getProperty("x") == newX);
  assertTrue(obj.getMetaClass().getAttribute(obj, "x") == newX1);
  obj.setX(newX2);
  obj.x = newX3;
  assertTrue(obj.getProperty("x") == newX2);
  assertTrue(obj.getMetaClass().getAttribute(obj, "x") == newX3);
}

代码示例来源：origin: org.grails/grails-datastore-gorm

@Override
public Object getAttribute(Object object, String attribute) {
  if (attribute.equals("id")) {
    return getKey();
  } else if (attribute.equals("initialized")) {
    return isProxyInitiated();
  } else if (attribute.equals("target")) {
    return getProxyTarget();
  } else {
    return delegate.getAttribute(getProxyTarget(), attribute);
  }
}

代码示例来源：origin: org.kohsuke.droovy/groovy

public static Object getFieldOnSuper(Class senderClass, Object receiver, String messageName) throws Throwable {
  try {
    if (receiver instanceof Class) {
      return InvokerHelper.getAttribute(receiver, messageName);
    } else {
      MetaClass mc = ((GroovyObject) receiver).getMetaClass();
      return mc.getAttribute(senderClass, receiver, messageName, true);
    }
  } catch (GroovyRuntimeException gre) {
    throw unwrap(gre);
  }
}

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