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oracle.eclipselink.coherence.standalone
Class EclipseLinkJPACacheLoader

java.lang.Object
com.tangosol.util.Base
oracle.eclipselink.coherence.standalone.EclipseLinkJPACacheLoader

All Implemented Interfaces:

com.tangosol.net.cache.CacheLoader

Direct Known Subclasses:

EclipseLinkJPACacheStore

public class EclipseLinkJPACacheLoader

extends com.tangosol.util.Base

implements com.tangosol.net.cache.CacheLoader

This is a Coherence Cache Loader that can be used when EclipseLink is is desired as the persistence provider and no Cache Interceptors or Query Redirectors from the EclipseLink-Coherence integration are set within the Persistence Unit for the specific class. This is intended to be used where the application uses Coherence directly and the cache store/loader are used behind the scene to persist and load data.

Coherence Configuration: In order to use the integrated EclipseLinkJPACacheLoader or EclipseLinkJPACacheStore the Coherence configuration XML file must specify the loader/store class as well as providing parameters for the cache-name and JPA persistence unit name.

The following is an example of how the standalone EclipseLinkJPACacheLoader can be configured.

 <cachestore-scheme>
    <class-scheme>
       <class-name>oracle.eclipselink.coherence.standalone.EclipseLinkJPACacheLoader</class-name> 
       <init-params> 
          <init-param>
             <param-type>java.lang.String</param-type>
             <param-value>{cache-name}</param-value> 
          </init-param>
          <init-param>
             <param-type>java.lang.String</param-type>
             <param-value>coherence-pu</param-value> 
          </init-param> 
       </init-params>
    </class-scheme>
 </cachestore-scheme>
 

Since:

Oracle TopLink 11g (11.1.1.0.0)

Author:

gyorke, djclarke

Nested Class Summary

Nested classes/interfaces inherited from class com.tangosol.util.Base

com.tangosol.util.Base.LoggingWriter, com.tangosol.util.Base.StackFrame

Field Summary

private ClassDescriptor	descriptor
private javax.persistence.EntityManagerFactory	emf

Fields inherited from class com.tangosol.util.Base

LOG_ALWAYS, LOG_DEBUG, LOG_ERR, LOG_INFO, LOG_MAX, LOG_MIN, LOG_QUIET, LOG_WARN, POWER_0, POWER_G, POWER_K, POWER_M, POWER_T, UNIT_D, UNIT_H, UNIT_M, UNIT_MS, UNIT_NS, UNIT_S, UNIT_US

Constructor Summary

EclipseLinkJPACacheLoader(java.lang.String cacheName, java.lang.String puName)

Method Summary

protected ClassDescriptor	getDescriptor()
protected javax.persistence.EntityManagerFactory	getEMF()
java.lang.Object	load(java.lang.Object id)
java.util.Map	loadAll(java.util.Collection ids)

Methods inherited from class com.tangosol.util.Base

azzert, azzert, azzert, azzertFailed, breakLines, breakLines, decimalValue, dup, dup, ensureClassLoader, ensureRuntimeException, ensureRuntimeException, equals, equalsDeep, err, err, err, err, err, escape, formatDateTime, getCallerStackFrame, getCommonMonitor, getCommonMonitor, getContextClassLoader, getContextClassLoader, getErr, getLastSafeTimeMillis, getLog, getMaxDecDigits, getMaxHexDigits, getOriginalException, getOut, getRandom, getRandomBinary, getRandomString, getSafeTimeMillis, getStackFrame, getStackFrames, getStackTrace, getStackTrace, getUpTimeMillis, hashCode, hexValue, indentString, indentString, isDecimal, isHex, isLogEcho, isOctal, log, log, log, log, log, makeInteger, makeLong, makeThread, octalValue, out, out, out, out, out, pad, parseBandwidth, parseBandwidth, parseDelimitedString, parseHex, parseHex, parseMemorySize, parseMemorySize, parseTime, parseTime, parseTimeNanos, parseTimeNanos, printStackTrace, randomize, randomize, randomize, read, read, read, read, read, read, read, redirectAll, replace, setErr, setLog, setLogEcho, setOut, toBandwidthString, toBandwidthString, toCharEscape, toCrc, toCrc, toCrc, toDecString, toDelimitedString, toDelimitedString, toDelimitedString, toDelimitedString, toHex, toHex, toHexDump, toHexEscape, toHexEscape, toHexEscape, toHexString, toMemorySizeString, toMemorySizeString, toQuotedCharEscape, toQuotedStringEscape, toSqlString, toString, toString, toStringEscape, toUnicodeEscape, trace, trace, trace, trace, trace, trace, trace, trace, trace

Methods inherited from class java.lang.Object

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

Field Detail

emf

private javax.persistence.EntityManagerFactory emf

descriptor

private ClassDescriptor descriptor

Constructor Detail

EclipseLinkJPACacheLoader

public EclipseLinkJPACacheLoader(java.lang.String cacheName,
                                 java.lang.String puName)

Method Detail

getEMF

protected javax.persistence.EntityManagerFactory getEMF()

getDescriptor

protected ClassDescriptor getDescriptor()

load

public java.lang.Object load(java.lang.Object id)

Specified by:

load in interface com.tangosol.net.cache.CacheLoader

loadAll

public java.util.Map loadAll(java.util.Collection ids)

Specified by:

loadAll in interface com.tangosol.net.cache.CacheLoader

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