org.apache.ibatis.reflection.property.PropertyTokenizer Java Examples

@Override
public boolean hasSetter(String name) {
  PropertyTokenizer prop = new PropertyTokenizer(name);
  if (prop.hasNext()) {
    if (metaClass.hasSetter(prop.getIndexedName())) {
      MetaObject metaValue = metaObject.metaObjectForProperty(prop.getIndexedName());
      if (metaValue == SystemMetaObject.NULL_META_OBJECT) {
        return metaClass.hasSetter(name);
      } else {
        return metaValue.hasSetter(prop.getChildren());
      }
    } else {
      return false;
    }
  } else {
    return metaClass.hasSetter(name);
  }
}
 

@Override
public boolean hasSetter(String name) {
  PropertyTokenizer prop = new PropertyTokenizer(name);
  if (prop.hasNext()) {
    if (metaClass.hasSetter(prop.getIndexedName())) {
      MetaObject metaValue = metaObject.metaObjectForProperty(prop.getIndexedName());
      if (metaValue == SystemMetaObject.NULL_META_OBJECT) {
        return metaClass.hasSetter(name);
      } else {
        return metaValue.hasSetter(prop.getChildren());
      }
    } else {
      return false;
    }
  } else {
    return metaClass.hasSetter(name);
  }
}
 

@Override
public boolean hasGetter(String name) {
  PropertyTokenizer prop = new PropertyTokenizer(name);
  if (prop.hasNext()) {
    if (map.containsKey(prop.getIndexedName())) {
      MetaObject metaValue = metaObject.metaObjectForProperty(prop.getIndexedName());
      if (metaValue == SystemMetaObject.NULL_META_OBJECT) {
        return true;
      } else {
        return metaValue.hasGetter(prop.getChildren());
      }
    } else {
      return false;
    }
  } else {
    return map.containsKey(prop.getName());
  }
}
 

@Override
public Class<?> getGetterType(String name) {
  PropertyTokenizer prop = new PropertyTokenizer(name);
  if (prop.hasNext()) {
    MetaObject metaValue = metaObject.metaObjectForProperty(prop.getIndexedName());
    if (metaValue == SystemMetaObject.NULL_META_OBJECT) {
      return Object.class;
    } else {
      return metaValue.getGetterType(prop.getChildren());
    }
  } else {
    if (map.get(name) != null) {
      return map.get(name).getClass();
    } else {
      return Object.class;
    }
  }
}
 

private Class<?> getGetterType(PropertyTokenizer prop) {
  Class<?> type = reflector.getGetterType(prop.getName());
  if (prop.getIndex() != null && Collection.class.isAssignableFrom(type)) {
    Type returnType = getGenericGetterType(prop.getName());
    if (returnType instanceof ParameterizedType) {
      Type[] actualTypeArguments = ((ParameterizedType) returnType).getActualTypeArguments();
      if (actualTypeArguments != null && actualTypeArguments.length == 1) {
        returnType = actualTypeArguments[0];
        if (returnType instanceof Class) {
          type = (Class<?>) returnType;
        } else if (returnType instanceof ParameterizedType) {
          type = (Class<?>) ((ParameterizedType) returnType).getRawType();
        }
      }
    }
  }
  return type;
}
 

@Override
public Class<?> getSetterType(String name) {
  PropertyTokenizer prop = new PropertyTokenizer(name);
  if (prop.hasNext()) {
    MetaObject metaValue = metaObject.metaObjectForProperty(prop.getIndexedName());
    if (metaValue == SystemMetaObject.NULL_META_OBJECT) {
      return Object.class;
    } else {
      return metaValue.getSetterType(prop.getChildren());
    }
  } else {
    if (map.get(name) != null) {
      return map.get(name).getClass();
    } else {
      return Object.class;
    }
  }
}
 

@Override
public boolean hasGetter(String name) {
  PropertyTokenizer prop = new PropertyTokenizer(name);
  if (prop.hasNext()) {
    if (metaClass.hasGetter(prop.getIndexedName())) {
      MetaObject metaValue = metaObject.metaObjectForProperty(prop.getIndexedName());
      if (metaValue == SystemMetaObject.NULL_META_OBJECT) {
        return metaClass.hasGetter(name);
      } else {
        return metaValue.hasGetter(prop.getChildren());
      }
    } else {
      return false;
    }
  } else {
    return metaClass.hasGetter(name);
  }
}
 

@Override
public boolean hasGetter(String name) {
  PropertyTokenizer prop = new PropertyTokenizer(name);
  if (prop.hasNext()) {
    if (metaClass.hasGetter(prop.getIndexedName())) {
      MetaObject metaValue = metaObject.metaObjectForProperty(prop.getIndexedName());
      if (metaValue == SystemMetaObject.NULL_META_OBJECT) {
        return metaClass.hasGetter(name);
      } else {
        return metaValue.hasGetter(prop.getChildren());
      }
    } else {
      return false;
    }
  } else {
    return metaClass.hasGetter(name);
  }
}
 

private Class<?> getGetterType(PropertyTokenizer prop) {
  Class<?> type = reflector.getGetterType(prop.getName());
  if (prop.getIndex() != null && Collection.class.isAssignableFrom(type)) {
    Type returnType = getGenericGetterType(prop.getName());
    if (returnType instanceof ParameterizedType) {
      Type[] actualTypeArguments = ((ParameterizedType) returnType).getActualTypeArguments();
      if (actualTypeArguments != null && actualTypeArguments.length == 1) {
        returnType = actualTypeArguments[0];
        if (returnType instanceof Class) {
          type = (Class<?>) returnType;
        } else if (returnType instanceof ParameterizedType) {
          type = (Class<?>) ((ParameterizedType) returnType).getRawType();
        }
      }
    }
  }
  return type;
}
 

@Override
public Class<?> getSetterType(String name) {
  PropertyTokenizer prop = new PropertyTokenizer(name);
  if (prop.hasNext()) {
    MetaObject metaValue = metaObject.metaObjectForProperty(prop.getIndexedName());
    if (metaValue == SystemMetaObject.NULL_META_OBJECT) {
      return Object.class;
    } else {
      return metaValue.getSetterType(prop.getChildren());
    }
  } else {
    if (map.get(name) != null) {
      return map.get(name).getClass();
    } else {
      return Object.class;
    }
  }
}
 

@Override
public Class<?> getGetterType(String name) {
  PropertyTokenizer prop = new PropertyTokenizer(name);
  if (prop.hasNext()) {
    MetaObject metaValue = metaObject.metaObjectForProperty(prop.getIndexedName());
    if (metaValue == SystemMetaObject.NULL_META_OBJECT) {
      return Object.class;
    } else {
      return metaValue.getGetterType(prop.getChildren());
    }
  } else {
    if (map.get(name) != null) {
      return map.get(name).getClass();
    } else {
      return Object.class;
    }
  }
}
 

@Override
public boolean hasGetter(String name) {
  PropertyTokenizer prop = new PropertyTokenizer(name);
  if (prop.hasNext()) {
    if (map.containsKey(prop.getIndexedName())) {
      MetaObject metaValue = metaObject.metaObjectForProperty(prop.getIndexedName());
      if (metaValue == SystemMetaObject.NULL_META_OBJECT) {
        return true;
      } else {
        return metaValue.hasGetter(prop.getChildren());
      }
    } else {
      return false;
    }
  } else {
    return map.containsKey(prop.getName());
  }
}
 

public void setValue(String name, Object value) {
  PropertyTokenizer prop = new PropertyTokenizer(name);
  if (prop.hasNext()) {
    MetaObject metaValue = metaObjectForProperty(prop.getIndexedName());
    if (metaValue == SystemMetaObject.NULL_META_OBJECT) {
      if (value == null && prop.getChildren() != null) {
        // don't instantiate child path if value is null
        //如果上层就是null了，还得看有没有儿子，没有那就结束
        return;
      } else {
          //否则还得new一个，委派给ObjectWrapper.instantiatePropertyValue
        metaValue = objectWrapper.instantiatePropertyValue(name, prop, objectFactory);
      }
    }
    //递归调用setValue
    metaValue.setValue(prop.getChildren(), value);
  } else {
      //到了最后一层了，所以委派给ObjectWrapper.set
    objectWrapper.set(prop, value);
  }
}
 

public void setValue(String name, Object value) {
  PropertyTokenizer prop = new PropertyTokenizer(name);
  if (prop.hasNext()) {
    MetaObject metaValue = metaObjectForProperty(prop.getIndexedName());
    if (metaValue == SystemMetaObject.NULL_META_OBJECT) {
      if (value == null && prop.getChildren() != null) {
        // don't instantiate child path if value is null
        //如果上层就是null了，还得看有没有儿子，没有那就结束
        return;
      } else {
          //否则还得new一个，委派给ObjectWrapper.instantiatePropertyValue
        metaValue = objectWrapper.instantiatePropertyValue(name, prop, objectFactory);
      }
    }
    //递归调用setValue
    metaValue.setValue(prop.getChildren(), value);
  } else {
      //到了最后一层了，所以委派给ObjectWrapper.set
    objectWrapper.set(prop, value);
  }
}
 

public Object getValue(String name) {
  PropertyTokenizer prop = new PropertyTokenizer(name);
  if (prop.hasNext()) {
    MetaObject metaValue = metaObjectForProperty(prop.getIndexedName());
    if (metaValue == SystemMetaObject.NULL_META_OBJECT) {
        //如果上层就是null了，那就结束，返回null
      return null;
    } else {
        //否则继续看下一层，递归调用getValue
     return metaValue.getValue(prop.getChildren());
    }
  } else {
    return objectWrapper.get(prop);
  }
}
 

@Override
public void set(PropertyTokenizer prop, Object value) {
    //如果有index,说明是集合，那就要解析集合,调用的是BaseWrapper.resolveCollection 和 setCollectionValue
  if (prop.getIndex() != null) {
    Object collection = resolveCollection(prop, object);
    setCollectionValue(prop, collection, value);
  } else {
      //否则，setBeanProperty
    setBeanProperty(prop, object, value);
  }
}
 

public boolean hasSetter(String name) {
  PropertyTokenizer prop = new PropertyTokenizer(name);
  if (prop.hasNext()) {
    if (reflector.hasSetter(prop.getName())) {
      MetaClass metaProp = metaClassForProperty(prop.getName());
      return metaProp.hasSetter(prop.getChildren());
    } else {
      return false;
    }
  } else {
    return reflector.hasSetter(prop.getName());
  }
}
 

@Override
public MetaObject instantiatePropertyValue(String name, PropertyTokenizer prop, ObjectFactory objectFactory) {
  MetaObject metaValue;
  Class<?> type = getSetterType(prop.getName());
  try {
    Object newObject = objectFactory.create(type);
    metaValue = MetaObject.forObject(newObject, metaObject.getObjectFactory(), metaObject.getObjectWrapperFactory());
    set(prop, newObject);
  } catch (Exception e) {
    throw new ReflectionException("Cannot set value of property '" + name + "' because '" + name + "' is null and cannot be instantiated on instance of " + type.getName() + ". Cause:" + e.toString(), e);
  }
  return metaValue;
}
 

public Object getValue(String name) {
  PropertyTokenizer prop = new PropertyTokenizer(name);
  if (prop.hasNext()) {
    MetaObject metaValue = metaObjectForProperty(prop.getIndexedName());
    if (metaValue == SystemMetaObject.NULL_META_OBJECT) {
        //如果上层就是null了，那就结束，返回null
      return null;
    } else {
        //否则继续看下一层，递归调用getValue
     return metaValue.getValue(prop.getChildren());
    }
  } else {
    return objectWrapper.get(prop);
  }
}
 

@Override
public Object get(PropertyTokenizer prop) {
    //如果有index,说明是集合，那就要分解集合,调用的是BaseWrapper.resolveCollection 和 getCollectionValue
  if (prop.getIndex() != null) {
    Object collection = resolveCollection(prop, map);
    return getCollectionValue(prop, collection);
  } else {
    return map.get(prop.getName());
  }
}
 

@Override
public Object get(PropertyTokenizer prop) {
    //如果有index(有中括号),说明是集合，那就要解析集合,调用的是BaseWrapper.resolveCollection 和 getCollectionValue
  if (prop.getIndex() != null) {
    Object collection = resolveCollection(prop, object);
    return getCollectionValue(prop, collection);
  } else {
      //否则，getBeanProperty
    return getBeanProperty(prop, object);
  }
}
 

public Class<?> getSetterType(String name) {
  PropertyTokenizer prop = new PropertyTokenizer(name);
  if (prop.hasNext()) {
    MetaClass metaProp = metaClassForProperty(prop.getName());
    return metaProp.getSetterType(prop.getChildren());
  } else {
    return reflector.getSetterType(prop.getName());
  }
}
 

public Class<?> getGetterType(String name) {
  PropertyTokenizer prop = new PropertyTokenizer(name);
  if (prop.hasNext()) {
    MetaClass metaProp = metaClassForProperty(prop);
    return metaProp.getGetterType(prop.getChildren());
  }
  // issue #506. Resolve the type inside a Collection Object
  return getGetterType(prop);
}
 

@Override
public void set(PropertyTokenizer prop, Object value) {
    //如果有index,说明是集合，那就要解析集合,调用的是BaseWrapper.resolveCollection 和 setCollectionValue
  if (prop.getIndex() != null) {
    Object collection = resolveCollection(prop, object);
    setCollectionValue(prop, collection, value);
  } else {
      //否则，setBeanProperty
    setBeanProperty(prop, object, value);
  }
}
 

public boolean hasGetter(String name) {
  PropertyTokenizer prop = new PropertyTokenizer(name);
  if (prop.hasNext()) {
    if (reflector.hasGetter(prop.getName())) {
      MetaClass metaProp = metaClassForProperty(prop);
      return metaProp.hasGetter(prop.getChildren());
    } else {
      return false;
    }
  } else {
    return reflector.hasGetter(prop.getName());
  }
}
 

@Override
public Object get(PropertyTokenizer prop) {
    //如果有index,说明是集合，那就要分解集合,调用的是BaseWrapper.resolveCollection 和 getCollectionValue
  if (prop.getIndex() != null) {
    Object collection = resolveCollection(prop, map);
    return getCollectionValue(prop, collection);
  } else {
    return map.get(prop.getName());
  }
}
 

@Override
public void set(PropertyTokenizer prop, Object value) {
  if (prop.getIndex() != null) {
    Object collection = resolveCollection(prop, map);
    setCollectionValue(prop, collection, value);
  } else {
    map.put(prop.getName(), value);
  }
}
 

protected void setCollectionValue(PropertyTokenizer prop, Object collection, Object value) {
  if (collection instanceof Map) {
    ((Map) collection).put(prop.getIndex(), value);
  } else {
    int i = Integer.parseInt(prop.getIndex());
    if (collection instanceof List) {
      ((List) collection).set(i, value);
    } else if (collection instanceof Object[]) {
      ((Object[]) collection)[i] = value;
    } else if (collection instanceof char[]) {
      ((char[]) collection)[i] = (Character) value;
    } else if (collection instanceof boolean[]) {
      ((boolean[]) collection)[i] = (Boolean) value;
    } else if (collection instanceof byte[]) {
      ((byte[]) collection)[i] = (Byte) value;
    } else if (collection instanceof double[]) {
      ((double[]) collection)[i] = (Double) value;
    } else if (collection instanceof float[]) {
      ((float[]) collection)[i] = (Float) value;
    } else if (collection instanceof int[]) {
      ((int[]) collection)[i] = (Integer) value;
    } else if (collection instanceof long[]) {
      ((long[]) collection)[i] = (Long) value;
    } else if (collection instanceof short[]) {
      ((short[]) collection)[i] = (Short) value;
    } else {
      throw new ReflectionException("The '" + prop.getName() + "' property of " + collection + " is not a List or Array.");
    }
  }
}
 

protected Object getCollectionValue(PropertyTokenizer prop, Object collection) {
  if (collection instanceof Map) {
      //map['name']
    return ((Map) collection).get(prop.getIndex());
  } else {
    int i = Integer.parseInt(prop.getIndex());
    if (collection instanceof List) {
        //list[0]
      return ((List) collection).get(i);
    } else if (collection instanceof Object[]) {
      return ((Object[]) collection)[i];
    } else if (collection instanceof char[]) {
      return ((char[]) collection)[i];
    } else if (collection instanceof boolean[]) {
      return ((boolean[]) collection)[i];
    } else if (collection instanceof byte[]) {
      return ((byte[]) collection)[i];
    } else if (collection instanceof double[]) {
      return ((double[]) collection)[i];
    } else if (collection instanceof float[]) {
      return ((float[]) collection)[i];
    } else if (collection instanceof int[]) {
      return ((int[]) collection)[i];
    } else if (collection instanceof long[]) {
      return ((long[]) collection)[i];
    } else if (collection instanceof short[]) {
      return ((short[]) collection)[i];
    } else {
      throw new ReflectionException("The '" + prop.getName() + "' property of " + collection + " is not a List or Array.");
    }
  }
}
 

protected Object resolveCollection(PropertyTokenizer prop, Object object) {
  if ("".equals(prop.getName())) {
    return object;
  } else {
    return metaObject.getValue(prop.getName());
  }
}