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package com.fasterxml.jackson.databind.util;
import com.fasterxml.jackson.databind.BeanPropertyDefinition;
import com.fasterxml.jackson.databind.introspect.AnnotatedField;
import com.fasterxml.jackson.databind.introspect.AnnotatedMember;
import com.fasterxml.jackson.databind.introspect.AnnotatedMethod;
import com.fasterxml.jackson.databind.introspect.AnnotatedParameter;
/**
* Simple immutable {@link BeanPropertyDefinition} implementation that can
* be wrapped around a {@link AnnotatedMember} that is a simple
* accessor (getter) or mutator (setter, constructor parameter)
* (or both, for fields).
*/
public class SimpleBeanPropertyDefinition
extends BeanPropertyDefinition
{
/**
* Member that defines logical property. Assumption is that it
* should be a 'simple' accessor; meaning a zero-argument getter,
* single-argument setter or constructor parameter.
*/
protected final AnnotatedMember _member;
protected final String _name;
/*
/**********************************************************
/* Construction
/**********************************************************
*/
public SimpleBeanPropertyDefinition(AnnotatedMember member) {
this(member, member.getName());
}
public SimpleBeanPropertyDefinition(AnnotatedMember member, String name) {
_member = member;
_name = name;
}
/*
/**********************************************************
/* Fluent factories
/**********************************************************
*/
@Override
public SimpleBeanPropertyDefinition withName(String newName) {
if (_name.equals(newName)) {
return this;
}
return new SimpleBeanPropertyDefinition(_member, newName);
}
/*
/*****************************************************
/* Basic property information, name, type
/*****************************************************
*/
@Override
public String getName() { return _name; }
@Override
public String getInternalName() { return getName(); }
/*
/*****************************************************
/* Access to accessors (fields, methods etc)
/*****************************************************
*/
@Override
public boolean hasGetter() {
return (getGetter() != null);
}
@Override
public boolean hasSetter() {
return (getSetter() != null);
}
@Override
public boolean hasField() {
return (_member instanceof AnnotatedField);
}
@Override
public boolean hasConstructorParameter() {
return (_member instanceof AnnotatedParameter);
}
public AnnotatedMethod getGetter() {
if ((_member instanceof AnnotatedMethod)
&& ((AnnotatedMethod) _member).getParameterCount() == 0) {
return (AnnotatedMethod) _member;
}
return null;
}
public AnnotatedMethod getSetter() {
if ((_member instanceof AnnotatedMethod)
&& ((AnnotatedMethod) _member).getParameterCount() == 1) {
return (AnnotatedMethod) _member;
}
return null;
}
public AnnotatedField getField() {
return (_member instanceof AnnotatedField) ?
(AnnotatedField) _member : null;
}
public AnnotatedParameter getConstructorParameter() {
return (_member instanceof AnnotatedParameter) ?
(AnnotatedParameter) _member : null;
}
/**
* Method used to find accessor (getter, field to access) to use for accessing
* value of the property.
* Null if no such member exists.
*/
public AnnotatedMember getAccessor() {
AnnotatedMember acc = getGetter();
if (acc == null) {
acc = getField();
}
return acc;
}
/**
* Method used to find mutator (constructor parameter, setter, field) to use for
* changing value of the property.
* Null if no such member exists.
*/
public AnnotatedMember getMutator() {
AnnotatedMember acc = getConstructorParameter();
if (acc == null) {
acc = getSetter();
if (acc == null) {
acc = getField();
}
}
return acc;
}
}
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