com.esri.gpt.catalog.lucene
Class DiscoveryClauseAdapter

java.lang.Object
  com.esri.gpt.catalog.lucene.DiscoveryClauseAdapter

Direct Known Subclasses:

LogicalClauseAdapter, PropertyClauseAdapter, SpatialClauseAdapter

public class DiscoveryClauseAdapter
extends Object

Super-class for the adaptation of a catalog discovery clause to the Lucene model.

Constructor Summary

protected

DiscoveryClauseAdapter(LuceneQueryAdapter queryAdapter) Constructs with an associated query adapter.

Method Summary

protected void	appendNullCheck(BooleanQuery activeBooleanQuery, String comparisonFieldName) Appends a null-check query to the active boolean query.
protected void	appendQuery(BooleanQuery activeBooleanQuery, LogicalClause activeLogicalClause, Query queryToAppend) Appends a processed query to the active boolean query.
protected void	appendSelectAll(BooleanQuery activeBooleanQuery) Appends a select all query to the active boolean query.
protected LuceneQueryAdapter	getQueryAdapter() Gets the the query adapter.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

DiscoveryClauseAdapter

protected DiscoveryClauseAdapter(LuceneQueryAdapter queryAdapter)

Constructs with an associated query adapter.

Parameters:

queryAdapter - the query adapter

Method Detail

getQueryAdapter

protected LuceneQueryAdapter getQueryAdapter()

Gets the the query adapter.

Returns:

the the query adapter

appendNullCheck

protected void appendNullCheck(BooleanQuery activeBooleanQuery,
                               String comparisonFieldName)
                        throws DiscoveryException

Appends a null-check query to the active boolean query.

Parameters:

activeBooleanQuery - the active Lucene boolean query

comparisonFieldName - the name of the stored, non-tokenized field to be checked

Throws:

DiscoveryException - if an invalid clause is encountered

appendQuery

protected void appendQuery(BooleanQuery activeBooleanQuery,
                           LogicalClause activeLogicalClause,
                           Query queryToAppend)
                    throws DiscoveryException

Appends a processed query to the active boolean query.

Parameters:

activeBooleanQuery - the active Lucene boolean query

activeLogicalClause - the active discovery logical clause

queryToAppend - the Lucene query to append

Throws:

DiscoveryException - if an invalid clause is encountered

appendSelectAll

protected void appendSelectAll(BooleanQuery activeBooleanQuery)

Appends a select all query to the active boolean query.

Parameters:

activeBooleanQuery - the active Lucene boolean query

Throws:

DiscoveryException - if an invalid clause is encountered