com.metamatrix.query.resolver.command
Class XQueryResolver

java.lang.Object
  com.metamatrix.query.resolver.command.XQueryResolver

All Implemented Interfaces:

CommandResolver

public class XQueryResolver
extends java.lang.Object
implements CommandResolver

Resolves XQueries, which in metamatrix currently involves taking the arguments to the doc() functions, adding them as the sub commands of the XQuery, which are then themselves resolved by the Resolver framework. XQuery resolution does not currently involve making sure the XQuery's XPath statements referring to the virtual documents are valid for those documents.

Constructor Summary

XQueryResolver()

Method Summary

void	resolveCommand(Command command, boolean useMetadataCommands, TempMetadataAdapter metadata, AnalysisRecord analysis, boolean resolveNullLiterals) Resolve the command using the metadata.

Methods inherited from class java.lang.Object

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

Constructor Detail

XQueryResolver

public XQueryResolver()

Method Detail

resolveCommand

public void resolveCommand(Command command,
                           boolean useMetadataCommands,
                           TempMetadataAdapter metadata,
                           AnalysisRecord analysis,
                           boolean resolveNullLiterals)
                    throws QueryMetadataException,
                           QueryResolverException,
                           MetaMatrixComponentException

Description copied from interface: CommandResolver

Resolve the command using the metadata.

Specified by:

resolveCommand in interface CommandResolver

Parameters:

command - The command to resolve

useMetadataCommands - true if the resolver should use metadata commands to completely resolve

metadata - Metadata

resolveNullLiterals - true if the resolver should consider replacing null literals with more appropriate types

Throws:

QueryMetadataException - If there is a metadata problem

QueryResolverException - If the query cannot be resolved

MetaMatrixComponentException - If there is an internal error

See Also:

CommandResolver.resolveCommand(com.metamatrix.query.sql.lang.Command, boolean, com.metamatrix.query.metadata.TempMetadataAdapter, com.metamatrix.query.analysis.AnalysisRecord, boolean)