/// <summary> <p>
/// Parses a query, searching on the fields specified.
/// Use this if you need to specify certain fields as required,
/// and others as prohibited.
/// <p><pre>
/// Usage:
/// <code>
/// String[] fields = {"filename", "contents", "description"};
/// int[] flags = {MultiFieldQueryParser.NORMAL FIELD,
/// MultiFieldQueryParser.REQUIRED FIELD,
/// MultiFieldQueryParser.PROHIBITED FIELD,};
/// parse(query, fields, flags, analyzer);
/// </code>
/// </pre>
/// <p>
/// The code above would construct a query:
/// <pre>
/// <code>
/// (filename:query) +(contents:query) -(description:query)
/// </code>
/// </pre>
///
/// </summary>
/// <param name="query">Query string to parse
/// </param>
/// <param name="fields">Fields to search on
/// </param>
/// <param name="flags">Flags describing the fields
/// </param>
/// <param name="analyzer">Analyzer to use
/// </param>
/// <throws> ParseException if query parsing fails </throws>
/// <throws> TokenMgrError if query parsing fails </throws>
public static Query Parse(System.String query, System.String[] fields, int[] flags, Analyzer analyzer)
{
BooleanQuery bQuery = new BooleanQuery();
for (int i = 0; i < fields.Length; i++)
{
Query q = Parse(query, fields[i], analyzer);
int flag = flags[i];
switch (flag)
{
case REQUIRED_FIELD:
bQuery.Add(q, true, false);
break;
case PROHIBITED_FIELD:
bQuery.Add(q, false, true);
break;
default:
bQuery.Add(q, false, false);
break;
}
}
return(bQuery);
}
/// <summary> <p>
/// Parses a query which searches on the fields specified.
/// <p>
/// If x fields are specified, this effectively constructs:
/// <pre>
/// <code>
/// (field1:query) (field2:query) (field3:query)...(fieldx:query)
/// </code>
/// </pre>
///
/// </summary>
/// <param name="query">Query string to parse
/// </param>
/// <param name="fields">Fields to search on
/// </param>
/// <param name="analyzer">Analyzer to use
/// </param>
/// <throws> ParseException if query parsing fails </throws>
/// <throws> TokenMgrError if query parsing fails </throws>
public static Query Parse(System.String query, System.String[] fields, Analyzer analyzer)
{
BooleanQuery bQuery = new BooleanQuery();
for (int i = 0; i < fields.Length; i++)
{
Query q = Parse(query, fields[i], analyzer);
bQuery.Add(q, false, false);
}
return bQuery;
}
/// <summary> <p>
/// Parses a query which searches on the fields specified.
/// <p>
/// If x fields are specified, this effectively constructs:
/// <pre>
/// <code>
/// (field1:query) (field2:query) (field3:query)...(fieldx:query)
/// </code>
/// </pre>
///
/// </summary>
/// <param name="query">Query string to parse
/// </param>
/// <param name="fields">Fields to search on
/// </param>
/// <param name="analyzer">Analyzer to use
/// </param>
/// <throws> ParseException if query parsing fails </throws>
/// <throws> TokenMgrError if query parsing fails </throws>
public static Query Parse(System.String query, System.String[] fields, Analyzer analyzer)
{
BooleanQuery bQuery = new BooleanQuery();
for (int i = 0; i < fields.Length; i++)
{
Query q = Parse(query, fields[i], analyzer);
bQuery.Add(q, false, false);
}
return(bQuery);
}
/// <summary> <p>
/// Parses a query, searching on the fields specified.
/// Use this if you need to specify certain fields as required,
/// and others as prohibited.
/// <p><pre>
/// Usage:
/// <code>
/// String[] fields = {"filename", "contents", "description"};
/// int[] flags = {MultiFieldQueryParser.NORMAL FIELD,
/// MultiFieldQueryParser.REQUIRED FIELD,
/// MultiFieldQueryParser.PROHIBITED FIELD,};
/// parse(query, fields, flags, analyzer);
/// </code>
/// </pre>
/// <p>
/// The code above would construct a query:
/// <pre>
/// <code>
/// (filename:query) +(contents:query) -(description:query)
/// </code>
/// </pre>
///
/// </summary>
/// <param name="query">Query string to parse
/// </param>
/// <param name="fields">Fields to search on
/// </param>
/// <param name="flags">Flags describing the fields
/// </param>
/// <param name="analyzer">Analyzer to use
/// </param>
/// <throws> ParseException if query parsing fails </throws>
/// <throws> TokenMgrError if query parsing fails </throws>
public static Query Parse(System.String query, System.String[] fields, int[] flags, Analyzer analyzer)
{
BooleanQuery bQuery = new BooleanQuery();
for (int i = 0; i < fields.Length; i++)
{
Query q = Parse(query, fields[i], analyzer);
int flag = flags[i];
switch (flag)
{
case REQUIRED_FIELD:
bQuery.Add(q, true, false);
break;
case PROHIBITED_FIELD:
bQuery.Add(q, false, true);
break;
default:
bQuery.Add(q, false, false);
break;
}
}
return bQuery;
}
