Package uk.ac.starlink.ttools.jel

Interface Summary
Constant Defines a typed value.
JELQuantity Aggregates a compiled expression and a metadata object.
 

Class Summary
ColumnIdentifier Can identify columns of a table using string identifiers.
DummyJELRowReader JELRowReader which can't actually read any rows.
FixedConstant Constant implementation which always has the same value.
JELFunction Provides a double precision function of one double precision variable which can be evaluated using JEL.
JELFunction.XResolver This public class is an implementation detail, not intended for external use.
JELRowReader An object which is able to read cell values by column name or number.
JELTable Wrapper table which is constructed entirely of columns defined by JEL expressions based on the base table.
JELUtils This class provides some utility methods for use with the JEL expression compiler.
RandomJELRowReader Implements JELRowReader for a random access table.
ResultSetJELRowReader JELRowReader for accessing JDBC ResultSet objects.
SequentialJELRowReader Implements JELRowReader for sequential access to a table.
StarTableJELRowReader JELRowReader subclass for access to StarTables.
TablelessJELRowReader JELRowReader implementation which has no columns.
 

Exception Summary
CustomCompilationException Specialised subclass of JEL's CompilationException.
 



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