Mark S created SOLR-4422:
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Summary: SolrJ DocumentObjectBinder class loses Map.Entry order
when repopulating dynamic field values, such as @Field("dynamic_field_values*").
Key: SOLR-4422
URL: https://issues.apache.org/jira/browse/SOLR-4422
Project: Solr
Issue Type: Bug
Components: clients - java
Affects Versions: 4.0
Reporter: Mark S
The SolrJ DocumentObjectBinder class does not retain order when reading in
dynamic field values into a Map. More specifically, the order in which the Map
is populated by an application is different to the order in which the Map is
repopulated by SolrJ.
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@Field("dynamic_field_values*")
private Map<String, Object> dynamicFieldValuesMap = new LinkedHashMap<String,
Object>(16);
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I believe the following would address this issue.
- allValuesMap = new HashMap<String, Object>();
+ allValuesMap = new LinkedHashMap<String, Object>();
Or, maybe the DocumentObjectBinder should directly populate the Map field
directly if that field is not null.
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I am pretty sure issue does NOT exist with dynamic field values in a List, as
the SolrJ DocumentObjectBinder uses a List implementation that retains ordering
"new ArrayList();". So the following will retain ordering.
@Field("dynamic_field_values_ss")
private List<String> dynamicFieldValues = new ArrayList<String>();
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