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## Package org.apache.cayenne.exp

Cayenne data expression classes.

See:
Description

Interface Summary
TraversalHandler | Expression visitor interface.

Class Summary
Expression | Superclass of Cayenne expressions that defines basic API for expressions use.
ExpressionFactory | Helper class to build expressions.
ExpressionParameter | Named parameter for paramterized expressions.
TraversalHelper | Noop implementation of TraversalHandler.

Exception Summary
ExpressionException | RuntimeException subclass thrown in cases of errors during expressions creation/parsing.

## Package org.apache.cayenne.exp Description

Cayenne data expression classes.

This package contains classes that describe expression language of Cayenne. Cayenne expressions define expressions on objects rather than expressions on data. Other parts of Cayenne may translate them to the target database SQL syntax.

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