ReflectionException in JMS - symfony

Question

I am developing a simple app in symfony to learn symfony.It has Terms,Example entities.TermExamples is one more entity is one more entitty which is a mapping table between Term and Examples.All is fine but when i try to serialize using JMS serializer ,I get a Reflection exception
These are my entities
Term
/**
* Term
*
* #ORM\Table(name="terms")
* #ORM\Entity
*/
class Term
{
/**
* #var integer
*
* #ORM\Column(name="id", type="integer")
* #ORM\Id
* #ORM\GeneratedValue(strategy="AUTO")
*/
private $id;
/**
* #var string
*
* #ORM\Column(name="termName", type="string", length=255)
*/
private $termName;
/**
* #var string
*
* #ORM\Column(name="description", type="string", length=2000)
*/
private $description;
/**
* #var string
*
* #ORM\Column(name="mnemonic", type="string", length=2000)
*/
private $mnemonic;
/**
* #var ArrayCollection
*
* #ORM\OneToMany(targetEntity="RelatedTerm",
* mappedBy="term1",cascade={"persist"})
*/
private $relatedTerms;
/**
* #var ArrayCollection
*
* #ORM\OneToMany(targetEntity="TermExample",
* mappedBy="term",cascade={"persist"})
*/
private $termExamples;
public function __construct()
{
$this->relatedTerms = new ArrayCollection();
$this->termExamples = new ArrayCollection();
}
/**
* Get id
*
* #return integer
*/
public function getId()
{
return $this->id;
}
/**
* Get Related Terms
*/
public function getRelatedTerms()
{
return $this->relatedTerms ;
}
/**
* Add related term
*/
public function addRelatedTerm($relatedTerm)
{
$this->relatedTerms[] = $relatedTerm;
}
/**
* Clear related Terms
*/
public function clearRelatedTerms()
{
$this->relatedTerms->clear();
}
/**
* Remove a related Term
*/
public function removeRelatedTerm($relatedTerm)
{
$this->relatedTerms->removeElement($relatedTerm);
}
/**
* Get Term Examples
*/
public function getTermExamples()
{
return $this->termExamples ;
}
/**
* Add term example
*/
public function addTermExample($termExample)
{
$this->termExamples[] = $termExample;
}
/**
* Clear term examples
*/
public function clearTermExamples()
{
$this->termExamples->clear() ;
}
/**
* Remove a Term Example
*/
public function removeTermExample($termExample)
{
$this->termExamples->removeElement($termExample);
}
/**
* Set termName
*
* #param string $termName
* #return Term
*/
public function setTermName($termName)
{
$this->termName = $termName;
return $this;
}
/**
* Get termName
*
* #return string
*/
public function getTermName()
{
return $this->termName;
}
/**
* Set description
*
* #param string $description
* #return Term
*/
public function setDescription($description)
{
$this->description = $description;
return $this;
}
/**
* Get description
*
* #return string
*/
public function getDescription()
{
return $this->description;
}
/**
* Set mnemonic
*
* #param string $mnemonic
* #return Term
*/
public function setMnemonic($mnemonic)
{
$this->mnemonic = $mnemonic;
return $this;
}
/**
* Get mnemonic
*
* #return string
*/
public function getMnemonic()
{
return $this->mnemonic;
}
}
Example
/**
* Example
*
* #ORM\Table(name="examples")
* #ORM\Entity
*/
class Example
{
/**
* #var integer
*
* #ORM\Column(name="id", type="integer")
* #ORM\Id
* #ORM\GeneratedValue(strategy="AUTO")
*/
private $id;
/**
* #var string
*
* #ORM\Column(name="example_sentence", type="string")
*/
private $exampleSentence;
/**
* #var term
*
* #ORM\OneToMany(targetEntity="TermExample",
* mappedBy="example")
*/
private $termExamples;
/**
* Get id
*
* #return integer
*/
public function getId()
{
return $this->id;
}
/**
* Get ExampleSentence
*
* #return string
*/
public function getExampleSentence()
{
return $this->exampleSentence;
}
/**
* Set Example sentence
*
* #param string $exampleSentence
*/
public function setExampleSentence($exampleSentence)
{
$this->exampleSentence = $exampleSentence;
return $this;
}
}
?>
TermExample
/**
* TermExample
*
* #ORM\Table(name="term_examples")
* #ORM\Entity
*/
class TermExample
{
/**
* #var integer
*
* #ORM\Column(name="id", type="integer")
* #ORM\Id
* #ORM\GeneratedValue(strategy="AUTO")
*/
private $id;
/**
* #ORM\ManyToOne(targetEntity="Term",
* inversedBy="termExamples",
* cascade={"persist"})
*/
private $term;
/**
* #ORM\ManyToOne(targetEntity="Example",
* inversedBy="termExamples",
* cascade={"persist"})
*/
private $example;
/**
* #var string
*
* #ORM\Column(name="pos",nullable=true)
*/
private $pos = "NO POS";
//public $exampleSentence;
public function __construct()
{
}
/**
* Get id
*
* #return integer
*/
public function getId()
{
return $this->id;
}
/**
* Get Term
*
* #return Term
*/
public function getTerm()
{
return $this->term ;
}
/**
* Set Term
* #param Term $term
*
* #return TermExample
*/
public function setTerm($term)
{
$this->term = $term;
$term->addTermExample($this);
}
/**
* Get Example
*
* #return Example
*/
public function getExample()
{
return $this->example ;
}
/**
* Set Example
*
* #return TermExample
*/
public function setExample($example)
{
$this->example = $example;
}
/**
* Get pos
*
* #return string
*/
public function getPos()
{
return $this->pos ;
}
/**
* Set pos
*
* #param string $pos -Parts of speech
*/
public function setPos($pos)
{
$this->pos = $pos;
}
}
When i try to add a term with example sentence,Everything goes fine into the db,but when i try to serialise the term, It shows me an error
"message": "Property Madhuri\\TermsBundle\\Entity\\TermExample::$exampleSentence does not exist",
"class": "ReflectionException",
"trace": [
{
"namespace": "",
"short_class": "",
"class": "",
"type": "",
"function": "",
"file": "/Users/madhuripalagummi/Documents/Dictionary/vendor/jms/metadata/src/Metadata/PropertyMetadata.php",
"line": 75,
"args": []
},
I tried clearing the doctrine cache metadata.But still dint work.
And when i added a field $exampleSentence in TermExample entity,It worked.But why should there be a $exampleSentence in TermExample?
Can anyone please help me?

Answer 1

JMS stores its serialization cache separately to Doctrine so I would try blitzing your cache (i.e. deleting the contents of the cache directory, not just doing a cache:clear command) and trying again. It sounds like the serializer is holding on to old annotations.