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Java Persistence API (JPA) Extensions Reference for EclipseLink, Release 2.4
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batch.size

Use eclipselink.batch.size to configure the batch size when using batch.type set to IN.


Values

Table 4-1 describes this persistence property's values.

Table 4-1 Valid Values for

Value Description

Size

The number of keys in each IN clause

Default: 256 or the query's pageSize (for cursor queries)



Examples

Example 4-3 shows how to use this hint in a JPA query.

Example 4-3 Using batch.size in a JPA Query

import org.eclipse.persistence.config.HintValues;
 import org.eclipse.persistence.config.QueryHints;
 query.setHint("eclipselink.BATCH_SIZE", "3");

Example 4-4 shows how to use this hint with the @QueryHint annotation.

Example 4-4 Using batch.size in a @QueryHint Annotation

import org.eclipse.persistence.config.HintValues;
 import org.eclipse.persistence.config.QueryHints;
 @QueryHint(name=QueryHints.BATCH_SIZE, value="3");


See Also

For more information, see:

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