# All Packages

- Package Summary
  Package | Description
  --- | ---
  org.apache.cayenne | Contains persistence APIs directly accessible by users.
  org.apache.cayenne.access | Contains classes that make up Cayenne ORM stack.
  org.apache.cayenne.access.dbsync |
  org.apache.cayenne.access.event |
  org.apache.cayenne.access.flush |
  org.apache.cayenne.access.flush.operation |
  org.apache.cayenne.access.jdbc | Contains classes that handle JDBC interactions.
  org.apache.cayenne.access.jdbc.reader |
  org.apache.cayenne.access.sqlbuilder |
  org.apache.cayenne.access.sqlbuilder.sqltree |
  org.apache.cayenne.access.translator |
  org.apache.cayenne.access.translator.batch |
  org.apache.cayenne.access.translator.batch.legacy |
  org.apache.cayenne.access.translator.ejbql |
  org.apache.cayenne.access.translator.procedure |
  org.apache.cayenne.access.translator.select |
  org.apache.cayenne.access.types | Defines an extendable mechanism to map Java types to JDBC types.
  org.apache.cayenne.access.util |
  org.apache.cayenne.annotation |
  org.apache.cayenne.ashwood |
  org.apache.cayenne.ashwood.graph |
  org.apache.cayenne.cache |
  org.apache.cayenne.configuration |
  org.apache.cayenne.configuration.rop.client |
  org.apache.cayenne.configuration.server |
  org.apache.cayenne.configuration.xml |
  org.apache.cayenne.conn |
  org.apache.cayenne.datasource |
  org.apache.cayenne.dba | Contains database adapter API (DbAdapter) and its default implementation.
  org.apache.cayenne.dba.db2 | IBM DB2 DbAdapter.
  org.apache.cayenne.dba.derby | Apache Derby DbAdapter.
  org.apache.cayenne.dba.derby.sqltree |
  org.apache.cayenne.dba.firebird |
  org.apache.cayenne.dba.firebird.sqltree |
  org.apache.cayenne.dba.frontbase | FrontBase DbAdapter.
  org.apache.cayenne.dba.h2 |
  org.apache.cayenne.dba.hsqldb | HSQLDB DbAdapter.
  org.apache.cayenne.dba.ingres |
  org.apache.cayenne.dba.mariadb |
  org.apache.cayenne.dba.mysql | MySQL DbAdapter.
  org.apache.cayenne.dba.mysql.sqltree |
  org.apache.cayenne.dba.openbase | OpenBase DbAdapter.
  org.apache.cayenne.dba.oracle | Oracle DbAdapter.
  org.apache.cayenne.dba.postgres | PostgreSQL DbAdapter.
  org.apache.cayenne.dba.postgres.sqltree |
  org.apache.cayenne.dba.sqlite |
  org.apache.cayenne.dba.sqlserver | MS SQLServer DbAdapter.
  org.apache.cayenne.dba.sqlserver.sqltree |
  org.apache.cayenne.dba.sybase | Sybase DbAdapter.
  org.apache.cayenne.di |
  org.apache.cayenne.di.spi |
  org.apache.cayenne.ejbql |
  org.apache.cayenne.ejbql.parser |
  org.apache.cayenne.event | Contains classes that make up Cayenne generic event dispatch mechanism.
  org.apache.cayenne.exp | Cayenne data expression classes.
  org.apache.cayenne.exp.parser | Contains expression parser and other expression internals.
  org.apache.cayenne.exp.property | Property API
  org.apache.cayenne.graph | Contains generic graph management tools used in Cayenne.
  org.apache.cayenne.log |
  org.apache.cayenne.map | Contains O/R mapping classes that store relational database metadata information and map it to Java classes.
  org.apache.cayenne.map.event |
  org.apache.cayenne.query | Defines standard queries supported by Cayenne and extension mechanism to create custom queries.
  org.apache.cayenne.reflect |
  org.apache.cayenne.reflect.generic |
  org.apache.cayenne.reflect.valueholder |
  org.apache.cayenne.remote | Contains classes an interfaces related to Cayenne remote object persistence features.
  org.apache.cayenne.remote.hessian |
  org.apache.cayenne.remote.hessian.service |
  org.apache.cayenne.remote.service |
  org.apache.cayenne.resource |
  org.apache.cayenne.rop |
  org.apache.cayenne.rop.http |
  org.apache.cayenne.template |
  org.apache.cayenne.template.directive |
  org.apache.cayenne.template.parser |
  org.apache.cayenne.tx |
  org.apache.cayenne.util | General utility classes.
  org.apache.cayenne.util.commons |
  org.apache.cayenne.util.concurrentlinkedhashmap |
  org.apache.cayenne.validation |
  org.apache.cayenne.value |
  org.apache.cayenne.value.json |