Use Groovy Meta Object Programming to access fields on Geode PdxInstance

build.gradle

apply plugin: 'groovy'

repositories {
  jcenter()
}

dependencies {
  compile 'org.codehaus.groovy:groovy:2.4.8'
  compile 'org.apache.geode:geode-core:1.1.0'
}

task runScript (dependsOn: 'classes', type: JavaExec) {
  main = 'main'
  classpath = sourceSets.main.runtimeClasspath
}

main.groovy

import org.apache.geode.cache.*
import org.apache.geode.pdx.*

class Foo {
  String bar, baz, qux
}

class DataBag implements GroovyInterceptable {

  PdxInstance pdx

  void setProperty(String field, value) {
    println "Set ${field} to ${value}"
  }

  def getProperty(String field) {
    pdx.getField(field)
  }
}

def cache = new CacheFactory().create()

PdxInstance instance = cache.createPdxInstanceFactory("Foo")
  .writeString("bar", "1")
  .writeString("baz", "2")
  .writeString("qux", "3")
  .create()

def o = new DataBag(pdx: instance)

println o.bar // prints 1
println o.baz // prints 2
println o.qux // prints 3