Examples with UpdateModificationQuerySpecification com.blazebit.persistence.impl.query.UpdateModificationQuerySpecification used on opensource projects

Example 1 with UpdateModificationQuerySpecification

use of com.blazebit.persistence.impl.query.UpdateModificationQuerySpecification in project blaze-persistence by Blazebit.

the class BaseUpdateCriteriaBuilderImpl method getQuerySpecification.

private <R> QuerySpecification getQuerySpecification(Query baseQuery, Query exampleQuery, String[] returningColumns, ReturningObjectBuilder<R> objectBuilder, Map<DbmsModificationState, String> includedModificationStates) {
    Set<String> parameterListNames = parameterManager.getParameterListNames(baseQuery);
    boolean isEmbedded = this instanceof ReturningBuilder;
    boolean shouldRenderCteNodes = renderCteNodes(isEmbedded);
    List<CTENode> ctes = shouldRenderCteNodes ? getCteNodes(isEmbedded) : Collections.EMPTY_LIST;
    List<String> setColumns = getSetColumns();
    ExtendedQuerySupport extendedQuerySupport = getService(ExtendedQuerySupport.class);
    Map<String, String> aliasMapping = new TreeMap<>();
    JoinNode rootNode = joinManager.getRoots().get(0);
    String[] idColumns = null;
    String tableToUpdate = null;
    String tableAlias = null;
    if ((joinManager.getRoots().size() > 1 || rootNode.hasChildNodes()) && mainQuery.dbmsDialect.getUpdateJoinStyle() != UpdateJoinStyle.NONE) {
        String sql = getService(ExtendedQuerySupport.class).getSql(em, baseQuery);
        if (SqlUtils.indexOfSelect(sql) != -1) {
            idColumns = getIdColumns(getMetamodel().getManagedType(ExtendedManagedType.class, entityType));
            int fromIndex = SqlUtils.indexOfFrom(sql);
            int tableStartIndex = fromIndex + SqlUtils.FROM.length();
            int tableEndIndex = sql.indexOf(" ", tableStartIndex);
            tableToUpdate = sql.substring(tableStartIndex, tableEndIndex);
            tableAlias = extendedQuerySupport.getSqlAlias(em, baseQuery, entityAlias);
            for (String idColumn : idColumns) {
                aliasMapping.put(tableAlias + "." + idColumn, "tmp.c" + aliasMapping.size());
            }
            SqlUtils.buildAliasMappingForTopLevelSelects(extendedQuerySupport.getSql(em, baseQuery), "tmp", aliasMapping);
        }
    }
    return new UpdateModificationQuerySpecification(this, baseQuery, exampleQuery, parameterManager.getParameterImpls(), parameterListNames, mainQuery.cteManager.isRecursive(), ctes, shouldRenderCteNodes, isEmbedded, returningColumns, objectBuilder, includedModificationStates, returningAttributeBindingMap, mainQuery.getQueryConfiguration().isQueryPlanCacheEnabled(), tableToUpdate, tableAlias, idColumns, setColumns, getForeignKeyParticipatingQueries(), aliasMapping, getUpdateExampleQuery());
}