private MethodDeclaration createValueSetter(PropertyDeclaration property) {
assert property != null;
SimpleName paramName = context.createVariableName("value");
Type valueType = context.getValueType(property);
return f.newMethodDeclaration(
new JavadocBuilder(f)
.text("{0}を設定する。",
context.getDescription(property))
.param(paramName)
.text("設定する値",
context.getDescription(property))