com.alibaba.excel.util

Class FieldUtils

java.lang.Object

com.alibaba.excel.util.FieldUtils

public class FieldUtils
extends Object

Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements. See the NOTICE file distributed with this work for additional information regarding copyright ownership. The ASF licenses this file to You under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

Author:

Apache Software Foundation (ASF)

Field Summary

Fields

Modifier and Type	Field and Description
static Class<?>	nullObjectClass

Constructor Summary

Constructors

Constructor and Description
FieldUtils()

Method Summary

Modifier and Type	Method and Description
static Field	getField(Class<?> cls, String fieldName) Gets an accessible Field by name respecting scope.
static Field	getField(Class<?> cls, String fieldName, boolean forceAccess) Gets an accessible Field by name, breaking scope if requested.
static Class<?>	getFieldClass(Map dataMap, String fieldName, Object value)
static Class<?>	getFieldClass(Object value)
static String	resolveCglibFieldName(Field field) Parsing the name matching cglib。

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

nullObjectClass

public static Class<?> nullObjectClass

Constructor Detail

FieldUtils

public FieldUtils()

Method Detail

getFieldClass

public static Class<?> getFieldClass(Map dataMap,
                                     String fieldName,
                                     Object value)

getFieldClass

public static Class<?> getFieldClass(Object value)

resolveCglibFieldName

public static String resolveCglibFieldName(Field field)

Parsing the name matching cglib。

     null -> null
     string1 -> string1
     String2 -> string2
     sTring3 -> STring3
     STring4 -> STring4
     STRING5 -> STRING5
     STRing6 -> STRing6
 

Parameters:

field - field

Returns:

field name.

getField

public static Field getField(Class<?> cls,
                             String fieldName)

Gets an accessible Field by name respecting scope. Superclasses/interfaces will be considered.

Parameters:

cls - the Class to reflect, must not be null

fieldName - the field name to obtain

Returns:

the Field object

Throws:

IllegalArgumentException - if the class is null, or the field name is blank or empty

getField

public static Field getField(Class<?> cls,
                             String fieldName,
                             boolean forceAccess)

Gets an accessible Field by name, breaking scope if requested. Superclasses/interfaces will be considered.

Parameters:

cls - the Class to reflect, must not be null

fieldName - the field name to obtain

forceAccess - whether to break scope restrictions using the AccessibleObject.setAccessible(boolean) method. false will only match public fields.

Returns:

the Field object

Throws:

NullPointerException - if the class is null

IllegalArgumentException - if the field name is blank or empty or is matched at multiple places in the inheritance hierarchy