org.elasticsearch.index.fielddata.plain

クラス PagedBytesIndexFieldData.PagedBytesEstimator

java.lang.Object

org.elasticsearch.index.fielddata.plain.PagedBytesIndexFieldData.PagedBytesEstimator

すべての実装されたインタフェース:

AbstractIndexFieldData.PerValueEstimator

含まれているクラス:

PagedBytesIndexFieldData

public class PagedBytesIndexFieldData.PagedBytesEstimator
extends Object
implements AbstractIndexFieldData.PerValueEstimator

Estimator that wraps string field data by either using BlockTreeTermsReader, or wrapping the data in a RamAccountingTermsEnum if the BlockTreeTermsReader cannot be used.

メソッドのサマリー

修飾子とタイプ	メソッドと説明
void	adjustForNoTerms(long actualUsed) Adjust the breaker when no terms were actually loaded, but the field data takes up space regardless.
void	afterLoad(org.apache.lucene.index.TermsEnum termsEnum, long actualUsed) Adjust the circuit breaker now that terms have been loaded, getting the actual used either from the parameter (if estimation worked for the entire set), or from the TermsEnum if it has been wrapped in a RamAccountingTermsEnum.
org.apache.lucene.index.TermsEnum	beforeLoad(org.apache.lucene.index.Terms terms) Determine whether the BlockTreeTermsReader.FieldReader can be used for estimating the field data, adding the estimate to the circuit breaker if it can, otherwise wrapping the terms in a RamAccountingTermsEnum to be estimated on a per-term basis.
long	bytesPerValue(org.apache.lucene.util.BytesRef term)
long	estimateStringFieldData()

クラスから継承されたメソッド java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

メソッドの詳細

bytesPerValue

public long bytesPerValue(org.apache.lucene.util.BytesRef term)

定義:

bytesPerValue インタフェース内 AbstractIndexFieldData.PerValueEstimator

戻り値:

the number of bytes for the term based on the length and ordinal overhead

estimateStringFieldData

public long estimateStringFieldData()

戻り値:

the estimate for loading the entire term set into field data, or 0 if unavailable

beforeLoad

public org.apache.lucene.index.TermsEnum beforeLoad(org.apache.lucene.index.Terms terms)
                                             throws IOException

Determine whether the BlockTreeTermsReader.FieldReader can be used for estimating the field data, adding the estimate to the circuit breaker if it can, otherwise wrapping the terms in a RamAccountingTermsEnum to be estimated on a per-term basis.

定義:

beforeLoad インタフェース内 AbstractIndexFieldData.PerValueEstimator

パラメータ:

terms - terms to be estimated

戻り値:

A possibly wrapped TermsEnum for the terms

例外:

IOException

afterLoad

public void afterLoad(org.apache.lucene.index.TermsEnum termsEnum,
                      long actualUsed)

Adjust the circuit breaker now that terms have been loaded, getting the actual used either from the parameter (if estimation worked for the entire set), or from the TermsEnum if it has been wrapped in a RamAccountingTermsEnum.

定義:

afterLoad インタフェース内 AbstractIndexFieldData.PerValueEstimator

パラメータ:

termsEnum - terms that were loaded

actualUsed - actual field data memory usage

adjustForNoTerms

public void adjustForNoTerms(long actualUsed)

Adjust the breaker when no terms were actually loaded, but the field data takes up space regardless. For instance, when ordinals are used.

パラメータ:

actualUsed - bytes actually used