Package org.apache.openjpa.jdbc.kernel.exps

OpenJPA-JDBC Expression Tree

Interface Summary

Interface	Description
FilterValue	The simplified public view of any non-operator in a query filter, including constants, variables, and object fields.
JDBCAggregateListener	JDBC extension to the AggregateListener.
JDBCFilterListener	JDBC extension to the FilterListener.
Val	A Value represents any non-operator in a query filter, including constants, variables, and object fields.

Class Summary

Class	Description
Abs	Absolute value.
Args	A list of arguments to a multi-argument function.
CoalesceExpression	Coalesce expression.
CollectionParam	A collection-valued input parameter in an in-expression.
CollectionParam.ParamExpState	Expression state.
Concat	Concatenate one string with another.
DatastoreFunction	A unary operator that executes a datastore specific function with zero or more arguments.
ExpContext	Expression tree context.
ExpState	Expression tree state.
GeneralCaseExpression	General case expression.
GetColumn	Returns the SQL alias of the named column for use in a query.
IndexOf	Find the index of one string within another.
JDBCExpressionFactory	Expression factory implementation that can be used to execute queries via SQL.
JDBCStringContains	Deprecated. Use matches() instead.
JDBCWildcardMatch	Deprecated. Use matches() instead.
Lit	A literal value in a filter.
MapEntry	Returns the Map.Entry of a map value.
MapEntry.EntryExpState	Expression state.
MapKey	Returns the key of a map value.
MapKey.KeyExpState	Expression state.
Math	Value produced by a mathematical operation on two values.
Null	A literal null value in a filter.
NullableAggregateUnaryOp	OPENJPA-1794 An aggregate unary operation that can indicate whether a null value from the data store should be returned as null.
NullIfExpression	NullIf expression.
Param	A parameter in a filter.
Param.ParamExpState	Expression state.
PCPath	A path represents a traversal into fields of a candidate object.
PCPath.PathExpState	Expression state.
QueryExpressionsState	Struct to hold the state of a query expressions instance.
SelectConstructor	Turns parsed queries into selects.
SimpleCaseExpression	Simple case expression.
SQLEmbed	Simple listener which embeds its SQL argument into the query.
SQLExpression	Deprecated. Use SQLEmbed directly
SQLValue	Deprecated. Use SQLEmbed directly
Sqrt	Square root.
StringLength	Returns the number of characters in a string.
SubQ	A subquery.
Substring	Take a substring of a string.
ToLowerCase	Lower-cases a string.
ToUpperCase	Upper-cases a string.
Trim	Returns the number of characters in a string.
TypeLit	A type literal value.
WhenCondition	Value produced by a when_clause of a case expression.
WhenScalar	Value produced by a when_clause of a case expression.