org.apache.jdo.impl.model.jdo.caching
Class JDOMapImplCaching

java.lang.Object
  org.apache.jdo.impl.model.jdo.JDOElementImpl
      org.apache.jdo.impl.model.jdo.JDORelationshipImpl
          org.apache.jdo.impl.model.jdo.JDOMapImplDynamic
              org.apache.jdo.impl.model.jdo.caching.JDOMapImplCaching

All Implemented Interfaces:

JDOElement, JDOMap, JDORelationship

public class JDOMapImplCaching
extends JDOMapImplDynamic

An instance of this class represents the JDO relationship metadata (the treatment of keys and values) of a map relationship field. This caching implementation caches any calulated value to avoid re-calculating it if it is requested again.

Since:

1.1

Version:

1.1

Author:

Michael Bouschen

Field Summary

Fields inherited from class org.apache.jdo.impl.model.jdo.JDOMapImplDynamic

embeddedKey, embeddedValue, keyType, valueType

Fields inherited from interface org.apache.jdo.model.jdo.JDORelationship

CARDINALITY_N, CARDINALITY_ONE, CARDINALITY_ZERO

Constructor Summary

JDOMapImplCaching()

Method Summary

JavaType	getKeyType() Get the type representation of the keys for this JDOMap.
JavaType	getValueType() Get the type representation of the values for this JDOMap.
boolean	isEmbeddedKey() Determines whether the keys of the map should be stored if possible as part of the instance instead of as their own instances in the datastore.
boolean	isEmbeddedValue() Determines whether the values of the map should be stored if possible as part of the instance instead of as their own instances in the datastore.

Methods inherited from class org.apache.jdo.impl.model.jdo.JDOMapImplDynamic

getKeyTypeName, getValueTypeName, setEmbeddedKey, setEmbeddedValue, setKeyType, setKeyTypeName, setValueType, setValueTypeName

Methods inherited from class org.apache.jdo.impl.model.jdo.JDORelationshipImpl

getDeclaringField, getInverseRelationship, getLowerBound, getUpperBound, setDeclaringField, setInverseRelationship, setLowerBound, setUpperBound

Methods inherited from class org.apache.jdo.impl.model.jdo.JDOElementImpl

addPropertyChangeListener, addVetoableChangeListener, createJDOExtension, firePropertyChange, fireVetoableChange, getJDOExtensions, removeJDOExtension, removePropertyChangeListener, removeVetoableChangeListener

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.apache.jdo.model.jdo.JDORelationship

getDeclaringField, getInverseRelationship, getLowerBound, getUpperBound, setDeclaringField, setInverseRelationship, setLowerBound, setUpperBound

Methods inherited from interface org.apache.jdo.model.jdo.JDOElement

addPropertyChangeListener, addVetoableChangeListener, createJDOExtension, getJDOExtensions, removeJDOExtension, removePropertyChangeListener, removeVetoableChangeListener

Constructor Detail

JDOMapImplCaching

public JDOMapImplCaching()

Method Detail

isEmbeddedKey

public boolean isEmbeddedKey()

Determines whether the keys of the map should be stored if possible as part of the instance instead of as their own instances in the datastore.

Specified by:

isEmbeddedKey in interface JDOMap

Overrides:

isEmbeddedKey in class JDOMapImplDynamic

Returns:

true if the keys are stored as part of this instance; false otherwise

getKeyType

public JavaType getKeyType()

Get the type representation of the keys for this JDOMap.

Specified by:

getKeyType in interface JDOMap

Overrides:

getKeyType in class JDOMapImplDynamic

Returns:

the type of the keys of this JDOMap

isEmbeddedValue

public boolean isEmbeddedValue()

Determines whether the values of the map should be stored if possible as part of the instance instead of as their own instances in the datastore.

Specified by:

isEmbeddedValue in interface JDOMap

Overrides:

isEmbeddedValue in class JDOMapImplDynamic

Returns:

true if the values are stored as part of this instance; false otherwise

getValueType

public JavaType getValueType()

Get the type representation of the values for this JDOMap.

Specified by:

getValueType in interface JDOMap

Overrides:

getValueType in class JDOMapImplDynamic

Returns:

the type of the values of this JDOMap