| Name | Description | Type | Package | Framework |
| AndToQuery | Class | org.hypergraphdb.query.cond2qry | HypergraphDb | |
| ConditionToQuery | Interface | org.hypergraphdb.query.cond2qry | HypergraphDb | |
| ContractConjunction | Class | org.hypergraphdb.query.cond2qry | HypergraphDb | |
| ContractConjunction .ApplyByPartIndex | Class | org.hypergraphdb.query.cond2qry.ContractConjunction | HypergraphDb | |
| ContractConjunction .ApplyByTargetIndex | Class | org.hypergraphdb.query.cond2qry.ContractConjunction | HypergraphDb | |
| ContractConjunction .TypeValueContract | Class | org.hypergraphdb.query.cond2qry.ContractConjunction | HypergraphDb | |
| ContradictoryCondition | To simplify the logic of query compilation a bit - a step during the compilation process can throw that exception to indicate that it has detected a condition that is self-contradictory, it cannot be fullfilled and it will always lead to an empty | Class | org.hypergraphdb.query.cond2qry | HypergraphDb |
| ExpressionBasedQuery | Class | org.hypergraphdb.query.cond2qry | HypergraphDb | |
| IncidentToQuery | Class | org.hypergraphdb.query.cond2qry | HypergraphDb | |
| LinkToQuery | Class | org.hypergraphdb.query.cond2qry | HypergraphDb | |
| OrToParellelQuery | Class | org.hypergraphdb.query.cond2qry | HypergraphDb | |
| OrToQuery | Class | org.hypergraphdb.query.cond2qry | HypergraphDb | |
| PositionedIncidentToQuery | Class | org.hypergraphdb.query.cond2qry | HypergraphDb | |
| QEManip | Class | org.hypergraphdb.query.cond2qry | HypergraphDb | |
| QueryCompiler | Interface | org.hypergraphdb.query.cond2qry | HypergraphDb | |
| QueryMetaData | Class | org.hypergraphdb.query.cond2qry | HypergraphDb | |
| SimpleQueryCompiler | Class | org.hypergraphdb.query.cond2qry | HypergraphDb | |
| ToQueryMap | Class | org.hypergraphdb.query.cond2qry | HypergraphDb | |
| TypedValueToQuery | Class | org.hypergraphdb.query.cond2qry | HypergraphDb | |
| ValueAsPredicateOnly | Class | org.hypergraphdb.query.cond2qry | HypergraphDb | |