com.fasterxml.jackson.databind.util

Class BeanUtil



  • public class BeanUtil
    extends Object
    Helper class that contains functionality needed by both serialization and deserialization side.
    • Constructor Detail

      • BeanUtil

        public BeanUtil()
    • Method Detail

      • getDefaultValue

        public static Object getDefaultValue(JavaType type)
        Accessor used to find out "default value" to use for comparing values to serialize, to determine whether to exclude value from serialization with inclusion type of JsonInclude.Include.NON_DEFAULT.

        Default logic is such that for primitives and wrapper types for primitives, expected defaults (0 for `int` and `java.lang.Integer`) are returned; for Strings, empty String, and for structured (Maps, Collections, arrays) and reference types, criteria JsonInclude.Include.NON_DEFAULT is used.

        Since:
        2.7
      • isCglibGetCallbacks

        protected static boolean isCglibGetCallbacks(AnnotatedMethod am)
        This method was added to address the need to weed out CGLib-injected "getCallbacks" method. At this point caller has detected a potential getter method with name "getCallbacks" and we need to determine if it is indeed injectect by Cglib. We do this by verifying that the result type is "net.sf.cglib.proxy.Callback[]"
      • isGroovyMetaClassGetter

        protected static boolean isGroovyMetaClassGetter(AnnotatedMethod am)
        Another helper method to deal with Groovy's problematic metadata accessors
      • legacyManglePropertyName

        protected static String legacyManglePropertyName(String basename,
                                                         int offset)
        Method called to figure out name of the property, given corresponding suggested name based on a method or field name.
        Parameters:
        basename - Name of accessor/mutator method, not including prefix ("get"/"is"/"set")
      • stdManglePropertyName

        public static String stdManglePropertyName(String basename,
                                                   int offset)
        Note: public only since 2.11
        Since:
        2.5
      • checkUnsupportedType

        public static String checkUnsupportedType(JavaType type)
        Helper method called by BeanDeserializerFactory and BeanSerializerFactory to check if given unrecognized type (to be (de)serialized as general POJO) is one of "well-known" types for which there would be a datatype module; and if so, return appropriate failure message to give to caller.
        Since:
        2.12
      • isJava8TimeClass

        public static boolean isJava8TimeClass(Class<?> rawType)
        Since:
        2.12
      • isJodaTimeClass

        public static boolean isJodaTimeClass(Class<?> rawType)
        Since:
        2.12

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