AbstractQueryProcessor (Ontopia)

java.lang.Object
- net.ontopia.topicmaps.query.impl.basic.AbstractQueryProcessor

Direct Known Subclasses:

QueryProcessor, RulePredicate
```
public abstract class AbstractQueryProcessor
extends Object
```
INTERNAL: A collection of utility methods used by classes which need to evaluate queries. Simply a code-sharing class for QueryProcessor and RulePredicate.

Constructor Summary

Constructors
Constructor Description

AbstractQueryProcessor()

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`Collection`	`findClauseItems(List clauses, Map parameters)`	INTERNAL: Finds all the values (constants and variables) used in the set of clauses and returns them in a collection with no duplicates.
`Collection`	`findClauseVariables(List clauses)`	INTERNAL: Finds all the variables used in the set of clauses and returns them in a collection with no duplicates.
`static QueryMatches`	`satisfy(List clauses, QueryMatches result)`	INTERNAL: Takes the query parameters and produces the complete list of matches.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - AbstractQueryProcessor
```
public AbstractQueryProcessor()
```
- Method Detail
  - findClauseItems
```
public Collection findClauseItems(List clauses,
                                  Map parameters)
```
    INTERNAL: Finds all the values (constants and variables) used in the set of clauses and returns them in a collection with no duplicates.
  - findClauseVariables
```
public Collection findClauseVariables(List clauses)
```
    INTERNAL: Finds all the variables used in the set of clauses and returns them in a collection with no duplicates.
  - satisfy
```
public static QueryMatches satisfy(List clauses,
                                   QueryMatches result)
                            throws InvalidQueryException
```
    INTERNAL: Takes the query parameters and produces the complete list of matches. It's static because it's not inherited, it uses no instance variables, and this makes it easier to access from outside when needed.
    
    Throws:
    
    InvalidQueryException