Examples with SqmSelfRenderingExpression org.hibernate.query.sqm.tree.expression.SqmSelfRenderingExpression used on opensource projects

Example 1 with SqmSelfRenderingExpression

use of org.hibernate.query.sqm.tree.expression.SqmSelfRenderingExpression in project hibernate-orm by hibernate.

the class OrderingExpression method applyCollation.

static Expression applyCollation(Expression expression, String collation, SqlAstCreationState creationState) {
    final Expression sortExpression;
    if (collation == null) {
        sortExpression = expression;
    } else {
        final QueryEngine queryEngine = creationState.getCreationContext().getSessionFactory().getQueryEngine();
        final SqmToSqlAstConverter converter;
        if (creationState instanceof SqmToSqlAstConverter) {
            converter = (SqmToSqlAstConverter) creationState;
        } else {
            converter = new FakeSqmToSqlAstConverter(creationState);
        }
        sortExpression = queryEngine.getSqmFunctionRegistry().findFunctionDescriptor("collate").generateSqmExpression(new SqmSelfRenderingExpression<>(walker -> expression, null, null), null, queryEngine, queryEngine.getTypeConfiguration()).convertToSqlAst(converter);
    }
    return sortExpression;
}