Package org.apache.solr.update.processor

Class DocBasedVersionConstraintsProcessor

java.lang.Object

org.apache.solr.update.processor.UpdateRequestProcessor

org.apache.solr.update.processor.DocBasedVersionConstraintsProcessor

All Implemented Interfaces:

Closeable, AutoCloseable

public class DocBasedVersionConstraintsProcessor
extends UpdateRequestProcessor

Field Summary

Fields inherited from class org.apache.solr.update.processor.UpdateRequestProcessor

next

Constructor Summary

Constructors

Constructor	Description
DocBasedVersionConstraintsProcessor(List<String> versionFields, boolean ignoreOldUpdates, List<String> deleteVersionParamNames, boolean supportMissingVersionOnOldDocs, boolean useFieldCache, org.apache.solr.common.util.NamedList<Object> tombstoneConfig, SolrQueryRequest req, UpdateRequestProcessor next)

Method Summary

Modifier and Type	Method	Description
protected org.apache.solr.common.SolrInputDocument	createTombstoneDocument(IndexSchema schema, String id, String[] versionFieldNames, String[] deleteParamValues, org.apache.solr.common.util.NamedList<Object> tombstoneConfig)	Creates a tombstone document, that will be used to update a document that's being deleted by ID.
protected <T extends Comparable<? super T>> boolean	newUpdateComparePasses(T newUserVersion, T oldUserVersion, String userVersionFieldName)	Given two comparable user versions, returns whether the new version is acceptable to replace the old version.
void	processAdd(AddUpdateCommand cmd)
void	processDelete(DeleteUpdateCommand cmd)
protected boolean	versionInUpdateIsAcceptable(Object[] newUserVersions, Object[] oldUserVersions)	Returns whether or not the versions in the command are acceptable to be indexed.

Methods inherited from class org.apache.solr.update.processor.UpdateRequestProcessor

close, doClose, finish, processCommit, processMergeIndexes, processRollback

Methods inherited from class java.lang.Object

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

Constructor Detail

DocBasedVersionConstraintsProcessor

public DocBasedVersionConstraintsProcessor(List<String> versionFields,
                                           boolean ignoreOldUpdates,
                                           List<String> deleteVersionParamNames,
                                           boolean supportMissingVersionOnOldDocs,
                                           boolean useFieldCache,
                                           org.apache.solr.common.util.NamedList<Object> tombstoneConfig,
                                           SolrQueryRequest req,
                                           UpdateRequestProcessor next)

Method Detail

versionInUpdateIsAcceptable

protected boolean versionInUpdateIsAcceptable(Object[] newUserVersions,
                                              Object[] oldUserVersions)

Returns whether or not the versions in the command are acceptable to be indexed. If the instance is set to ignoreOldUpdates==false, it will throw a SolrException with CONFLICT in the event the version is not acceptable rather than return false.

Parameters:

newUserVersions - New versions in update request

oldUserVersions - Old versions currently in solr index

Returns:

True if acceptable, false if not (or will throw exception)

newUpdateComparePasses

protected <T extends Comparable<? super T>> boolean newUpdateComparePasses(T newUserVersion,
                                                                           T oldUserVersion,
                                                                           String userVersionFieldName)

Given two comparable user versions, returns whether the new version is acceptable to replace the old version.

Parameters:

newUserVersion - User-specified version on the new version of the document

oldUserVersion - User-specified version on the old version of the document

userVersionFieldName - Field name of the user versions being compared

Returns:

True if acceptable, false if not.

processAdd

public void processAdd(AddUpdateCommand cmd)
                throws IOException

Overrides:

processAdd in class UpdateRequestProcessor

Throws:

IOException

processDelete

public void processDelete(DeleteUpdateCommand cmd)
                   throws IOException

Overrides:

processDelete in class UpdateRequestProcessor

Throws:

IOException

createTombstoneDocument

protected org.apache.solr.common.SolrInputDocument createTombstoneDocument(IndexSchema schema,
                                                                           String id,
                                                                           String[] versionFieldNames,
                                                                           String[] deleteParamValues,
                                                                           org.apache.solr.common.util.NamedList<Object> tombstoneConfig)

Creates a tombstone document, that will be used to update a document that's being deleted by ID. The returned document will contain:

• uniqueKey
• versions (All the fields configured as in the versionField parameter)
• All the fields set in the tombstoneConfig parameter

Note that if the schema contains required fields (other than version fields or uniqueKey), they should be populated by the tombstoneConfig, otherwise this tombstone will fail when indexing (and consequently the delete will fail). Alternatively, required fields must be populated by some other means (like DocBasedVersionConstraintsProcessorFactory or similar)