I can't say for sure but I believe I've stored more than 1 MB into a Text
data member.

According to the
javadoc<http://code.google.com/appengine/docs/java/javadoc/com/google/appengine/api/datastore/Text.html>
Text
types are not limited to the 1MB max Entity size limit.

Text wraps around a string of unlimited size. Ordinary Java strings stored
> as properties in Entity objects are limited to 500 characters. However,
> Text objects can also be stored in properties, and are unlimited in size.
> However, they will not be indexed for query purposes.


>


On Fri, Jan 7, 2011 at 8:05 PM, 风笑雪 <[email protected]> wrote:

> Hi Nicky,
>
> The max size of an entity is 1MB, so all of its properties cannot exceed
> 1000000 bytes.
>
> ----------
> keakon
>
> My blog(Chinese): www.keakon.net
> Blog source code: https://bitbucket.org/keakon/doodle/
>
>
>
> On Sat, Jan 8, 2011 at 6:13 AM, Nicky <[email protected]> wrote:
>
>> It seems that the Text property is limited to 1000000 characters. I can't
>> find this in the documentation but I hit this exception below. Can anyone
>> confirm this?
>>
>>
>>    1.
>>
>>    Caused by: java.lang.IllegalArgumentException: string property contents 
>> is too long.  It cannot exceed 1000000 characters.
>>      at 
>> com.google.appengine.api.datastore.DatastoreApiHelper.translateError(DatastoreApiHelper.java:36)
>>      at 
>> com.google.appengine.api.datastore.DatastoreApiHelper$1.convertException(DatastoreApiHelper.java:98)
>>      at 
>> com.google.appengine.api.utils.FutureWrapper.get(FutureWrapper.java:69)
>>      at 
>> com.google.appengine.api.datastore.FutureHelper$CumulativeAggregateFuture.get(FutureHelper.java:136)
>>      at 
>> com.google.appengine.api.datastore.FutureHelper.getInternal(FutureHelper.java:71)
>>      at 
>> com.google.appengine.api.datastore.FutureHelper.quietGet(FutureHelper.java:32)
>>      at 
>> com.google.appengine.api.datastore.DatastoreServiceImpl$2.runInternal(DatastoreServiceImpl.java:113)
>>      at 
>> com.google.appengine.api.datastore.DatastoreServiceImpl$2.runInternal(DatastoreServiceImpl.java:110)
>>      at 
>> com.google.appengine.api.datastore.TransactionRunner.runInTransaction(TransactionRunner.java:31)
>>      at 
>> com.google.appengine.api.datastore.DatastoreServiceImpl.put(DatastoreServiceImpl.java:110)
>>      at 
>> com.google.appengine.api.datastore.DatastoreServiceImpl.put(DatastoreServiceImpl.java:94)
>>    <continued in next message>
>>
>>    2.  E01-07 02:00PM 13.585
>>
>>    <continued from previous message>
>>    at 
>> org.datanucleus.store.appengine.RuntimeExceptionWrappingDatastoreService.put(RuntimeExceptionWrappingDatastoreService.java:93)
>>      at 
>> org.datanucleus.store.appengine.DatastorePersistenceHandler.put(DatastorePersistenceHandler.java:180)
>>      at 
>> org.datanucleus.store.appengine.DatastorePersistenceHandler.put(DatastorePersistenceHandler.java:139)
>>      at 
>> org.datanucleus.store.appengine.DatastorePersistenceHandler.put(DatastorePersistenceHandler.java:134)
>>      at 
>> org.datanucleus.store.appengine.DatastorePersistenceHandler.updateObject(DatastorePersistenceHandler.java:536)
>>      at 
>> org.datanucleus.state.JDOStateManagerImpl.flush(JDOStateManagerImpl.java:4576)
>>      at 
>> org.datanucleus.ObjectManagerImpl.flushInternal(ObjectManagerImpl.java:2814)
>>      at org.datanucleus.ObjectManagerImpl.flush(ObjectManagerImpl.java:2754)
>>      at 
>> org.datanucleus.ObjectManagerImpl.preCommit(ObjectManagerImpl.java:2893)
>>      at 
>> org.datanucleus.TransactionImpl.internalPreCommit(TransactionImpl.java:369)
>>      at org.datanucleus.TransactionImpl.commit(TransactionImpl.java:256)
>>      at org.datanucleus.ObjectManagerImpl.close(ObjectManagerImpl.java:801)
>>      at 
>> org.datanucleus.jdo.JDOPersistenceManager.close(JDOPersistenceManager.java:271)
>>      ... 39 more
>>
>>
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-- 
-- A. Stevko
===========
"If everything seems under control, you're just not going fast enough." M.
Andretti

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