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DATAES-920 - Add parameter to @Field annotation to store null values.
Original PR: #516
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@ -154,4 +154,11 @@ public @interface Field {
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* @since 4.0
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*/
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int maxShingleSize() default -1;
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/**
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* if true, the field will be stored in Elasticsearch even if it has a null value
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*
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* @since 4.1
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*/
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boolean storeNullValue() default false;
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}
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@ -497,6 +497,11 @@ public class MappingElasticsearchConverter
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Object value = accessor.getProperty(property);
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if (value == null) {
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if (property.storeNullValue()) {
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sink.set(property, null);
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}
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continue;
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}
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@ -797,7 +802,8 @@ public class MappingElasticsearchConverter
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});
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}
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org.springframework.data.elasticsearch.annotations.Field fieldAnnotation = property.findAnnotation(org.springframework.data.elasticsearch.annotations.Field.class);
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org.springframework.data.elasticsearch.annotations.Field fieldAnnotation = property
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.findAnnotation(org.springframework.data.elasticsearch.annotations.Field.class);
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if (fieldAnnotation != null) {
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field.setFieldType(fieldAnnotation.type());
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@ -864,14 +870,17 @@ public class MappingElasticsearchConverter
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return result;
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}
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public void set(ElasticsearchPersistentProperty property, Object value) {
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public void set(ElasticsearchPersistentProperty property, @Nullable Object value) {
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if (property.isIdProperty()) {
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((Document) target).setId(value.toString());
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}
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if (value != null) {
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if (property.isVersionProperty()) {
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((Document) target).setVersion((Long) value);
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if (property.isIdProperty()) {
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((Document) target).setId(value.toString());
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}
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if (property.isVersionProperty()) {
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((Document) target).setVersion((Long) value);
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}
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}
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target.put(property.getFieldName(), value);
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@ -96,6 +96,12 @@ public interface ElasticsearchPersistentProperty extends PersistentProperty<Elas
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*/
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boolean isReadable();
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/**
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* @return {@literal true} if null values should be stored in Elasticsearch
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* @since 4.1
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*/
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boolean storeNullValue();
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enum PropertyToFieldNameConverter implements Converter<ElasticsearchPersistentProperty, String> {
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INSTANCE;
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@ -64,6 +64,7 @@ public class SimpleElasticsearchPersistentProperty extends
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private final boolean isSeqNoPrimaryTerm;
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private final @Nullable String annotatedFieldName;
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@Nullable private ElasticsearchPersistentPropertyConverter propertyConverter;
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private boolean storeNullValue;
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public SimpleElasticsearchPersistentProperty(Property property,
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PersistentEntity<?, ElasticsearchPersistentProperty> owner, SimpleTypeHolder simpleTypeHolder) {
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@ -85,6 +86,8 @@ public class SimpleElasticsearchPersistentProperty extends
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this.isParent = isAnnotationPresent(Parent.class);
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this.isSeqNoPrimaryTerm = SeqNoPrimaryTerm.class.isAssignableFrom(getRawType());
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boolean isField = isAnnotationPresent(Field.class);
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if (isVersionProperty() && !getType().equals(Long.class)) {
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throw new MappingException(String.format("Version property %s must be of type Long!", property.getName()));
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}
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@ -98,11 +101,13 @@ public class SimpleElasticsearchPersistentProperty extends
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throw new MappingException(String.format("Parent property %s must be of type String!", property.getName()));
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}
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if (isAnnotationPresent(Field.class) && isAnnotationPresent(MultiField.class)) {
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if (isField && isAnnotationPresent(MultiField.class)) {
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throw new MappingException("@Field annotation must not be used on a @MultiField property.");
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}
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initDateConverter();
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storeNullValue = isField && getRequiredAnnotation(Field.class).storeNullValue();
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}
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@Override
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@ -126,6 +131,11 @@ public class SimpleElasticsearchPersistentProperty extends
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return !isTransient() && !isSeqNoPrimaryTermProperty();
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}
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@Override
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public boolean storeNullValue() {
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return storeNullValue;
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}
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/**
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* Initializes an {@link ElasticsearchPersistentPropertyConverter} if this property is annotated as a Field with type
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* {@link FieldType#Date}, has a {@link DateFormat} set and if the type of the property is one of the Java8 temporal
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@ -39,6 +39,7 @@ import java.util.Map;
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import org.json.JSONException;
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import org.junit.jupiter.api.BeforeEach;
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import org.junit.jupiter.api.DisplayName;
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import org.junit.jupiter.api.Test;
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import org.springframework.core.convert.ConversionService;
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import org.springframework.core.convert.converter.Converter;
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@ -616,7 +617,7 @@ public class MappingElasticsearchConverterUnitTests {
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assertEquals(expected, json, false);
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}
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@Test
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@Test // DATAES-716
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void shouldReadLocalDate() {
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Document document = Document.create();
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document.put("id", "4711");
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@ -813,6 +814,25 @@ public class MappingElasticsearchConverterUnitTests {
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assertEquals(expected, document.toJson(), false);
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}
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@Test // DATAES-920
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@DisplayName("should write null value if configured")
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void shouldWriteNullValueIfConfigured() throws JSONException {
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EntityWithNullField entity = new EntityWithNullField();
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entity.setId("42");
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String expected = "{\n" + //
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" \"id\": \"42\",\n" + //
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" \"saved\": null\n" + //
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"}\n"; //
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Document document = Document.create();
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mappingElasticsearchConverter.write(entity, document);
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assertEquals(expected, document.toJson(), false);
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}
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private String pointTemplate(String name, Point point) {
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return String.format(Locale.ENGLISH, "\"%s\":{\"lat\":%.1f,\"lon\":%.1f}", name, point.getX(), point.getY());
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}
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@ -1046,4 +1066,11 @@ public class MappingElasticsearchConverterUnitTests {
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@Id private String id;
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private Object content;
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}
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@Data
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static class EntityWithNullField {
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@Id private String id;
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@Field(type = FieldType.Text) private String notSaved;
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@Field(type = FieldType.Text, storeNullValue = true) private String saved;
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}
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}
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