Package org.opencds.cqf.cql.engine.execution

package org.opencds.cqf.cql.engine.execution

Class	Description
Cache	There are at least two types of data that need to be cached, some that is context dependent, like expression results (and thus can be invalidated during the course of evaluation) and some that is not, like Function resolutions (and thus can be cache for the entire duration of the evaluation).
CqlEngine	NOTE: We have updated CqlEngine to adopt a visitor pattern approach to traversing the ELM tree for execution: Visitor pattern reduces the process to convert EML Tree to Executable ELM tree and thus reduces a potential maintenance issue.
CqlEngine.Options
Environment	The Environment class represents the current CQL execution environment.
EvaluationResult
EvaluationVisitor
ExpressionResult
Libraries	This class provides static utility methods for resolving ELM elements from a ELM library.
State	State represents the internal state of the CqlEngine.
Variable