Package org.elasticsearch.join.mapper
Class MetaJoinFieldMapper
- java.lang.Object
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- org.elasticsearch.index.mapper.Mapper
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- org.elasticsearch.index.mapper.FieldMapper
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- org.elasticsearch.join.mapper.MetaJoinFieldMapper
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- All Implemented Interfaces:
java.lang.Cloneable
,java.lang.Iterable<Mapper>
,ToXContent
,ToXContentFragment
public class MetaJoinFieldMapper extends FieldMapper
Simple field mapper hack to ensure that there is a one and onlyParentJoinFieldMapper
per mapping. This field mapper is not used to index or query any data, it is used as a marker in the mapping that denotes the presence of a parent-join field and forbids the addition of any additional ones. This class is also used to quickly retrieve the parent-join field defined in a mapping without specifying the name of the field.
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Nested Class Summary
Nested Classes Modifier and Type Class Description static class
MetaJoinFieldMapper.MetaJoinFieldType
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Nested classes/interfaces inherited from class org.elasticsearch.index.mapper.FieldMapper
FieldMapper.CopyTo, FieldMapper.MultiFields
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Nested classes/interfaces inherited from class org.elasticsearch.index.mapper.Mapper
Mapper.BuilderContext, Mapper.TypeParser
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Nested classes/interfaces inherited from interface org.elasticsearch.common.xcontent.ToXContent
ToXContent.DelegatingMapParams, ToXContent.MapParams, ToXContent.Params
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Field Summary
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Fields inherited from class org.elasticsearch.index.mapper.FieldMapper
COERCE_SETTING, copyTo, defaultFieldType, fieldType, IGNORE_MALFORMED_SETTING, indexCreatedVersion, multiFields
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Fields inherited from interface org.elasticsearch.common.xcontent.ToXContent
EMPTY_PARAMS
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Method Summary
Modifier and Type Method Description protected MetaJoinFieldMapper
clone()
protected java.lang.String
contentType()
MetaJoinFieldMapper.MetaJoinFieldType
fieldType()
protected void
parseCreateField(ParseContext context, java.util.List<IndexableField> fields)
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Methods inherited from class org.elasticsearch.index.mapper.FieldMapper
copyTo, createFieldNamesField, doMerge, doXContentAnalyzers, doXContentBody, doXContentDocValues, indexOptionToString, iterator, merge, name, parse, termVectorOptionsToString, toXContent, typeName, updateFieldType
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Methods inherited from class org.elasticsearch.index.mapper.Mapper
simpleName
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Methods inherited from class java.lang.Object
equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
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Methods inherited from interface org.elasticsearch.common.xcontent.ToXContentFragment
isFragment
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Method Detail
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fieldType
public MetaJoinFieldMapper.MetaJoinFieldType fieldType()
- Overrides:
fieldType
in classFieldMapper
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clone
protected MetaJoinFieldMapper clone()
- Overrides:
clone
in classFieldMapper
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parseCreateField
protected void parseCreateField(ParseContext context, java.util.List<IndexableField> fields) throws java.io.IOException
- Specified by:
parseCreateField
in classFieldMapper
- Throws:
java.io.IOException
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contentType
protected java.lang.String contentType()
- Specified by:
contentType
in classFieldMapper
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