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<org.elasticsearch.index.mapper.Mapper>
,org.elasticsearch.common.xcontent.ToXContent
,org.elasticsearch.common.xcontent.ToXContentFragment
public class MetaJoinFieldMapper extends org.elasticsearch.index.mapper.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
org.elasticsearch.index.mapper.FieldMapper.CopyTo, org.elasticsearch.index.mapper.FieldMapper.MultiFields
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description protected MetaJoinFieldMapper
clone()
protected java.lang.String
contentType()
MetaJoinFieldMapper.MetaJoinFieldType
fieldType()
protected void
parseCreateField(org.elasticsearch.index.mapper.ParseContext context, java.util.List<org.apache.lucene.index.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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Method Detail
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fieldType
public MetaJoinFieldMapper.MetaJoinFieldType fieldType()
- Overrides:
fieldType
in classorg.elasticsearch.index.mapper.FieldMapper
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clone
protected MetaJoinFieldMapper clone()
- Overrides:
clone
in classorg.elasticsearch.index.mapper.FieldMapper
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parseCreateField
protected void parseCreateField(org.elasticsearch.index.mapper.ParseContext context, java.util.List<org.apache.lucene.index.IndexableField> fields) throws java.io.IOException
- Specified by:
parseCreateField
in classorg.elasticsearch.index.mapper.FieldMapper
- Throws:
java.io.IOException
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contentType
protected java.lang.String contentType()
- Specified by:
contentType
in classorg.elasticsearch.index.mapper.FieldMapper
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