Class Statistics
- All Implemented Interfaces:
Serializable
,SdkPojo
,ToCopyableBuilder<Statistics.Builder,
Statistics>
Contains statistics information. The DFE engine uses information about the data in your Neptune graph to make effective trade-offs when planning query execution. This information takes the form of statistics that include so-called characteristic sets and predicate statistics that can guide query planning. See Managing statistics for the Neptune DFE to use.
- See Also:
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Nested Class Summary
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Method Summary
Modifier and TypeMethodDescriptionfinal Boolean
active()
Indicates whether or not DFE statistics generation is enabled at all.final Boolean
Indicates whether or not automatic statistics generation is enabled.static Statistics.Builder
builder()
final Instant
date()
The UTC time at which DFE statistics have most recently been generated.final boolean
final boolean
equalsBySdkFields
(Object obj) Indicates whether some other object is "equal to" this one by SDK fields.final <T> Optional
<T> getValueForField
(String fieldName, Class<T> clazz) final int
hashCode()
final String
note()
A note about problems in the case where statistics are invalid.static Class
<? extends Statistics.Builder> final StatisticsSummary
A StatisticsSummary structure that contains:final String
Reports the ID of the current statistics generation run.Take this object and create a builder that contains all of the current property values of this object.final String
toString()
Returns a string representation of this object.Methods inherited from interface software.amazon.awssdk.utils.builder.ToCopyableBuilder
copy
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Method Details
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autoCompute
Indicates whether or not automatic statistics generation is enabled.
- Returns:
- Indicates whether or not automatic statistics generation is enabled.
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active
Indicates whether or not DFE statistics generation is enabled at all.
- Returns:
- Indicates whether or not DFE statistics generation is enabled at all.
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statisticsId
Reports the ID of the current statistics generation run. A value of -1 indicates that no statistics have been generated.
- Returns:
- Reports the ID of the current statistics generation run. A value of -1 indicates that no statistics have been generated.
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date
The UTC time at which DFE statistics have most recently been generated.
- Returns:
- The UTC time at which DFE statistics have most recently been generated.
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note
A note about problems in the case where statistics are invalid.
- Returns:
- A note about problems in the case where statistics are invalid.
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signatureInfo
A StatisticsSummary structure that contains:
-
signatureCount
- The total number of signatures across all characteristic sets. -
instanceCount
- The total number of characteristic-set instances. -
predicateCount
- The total number of unique predicates.
- Returns:
- A StatisticsSummary structure that contains:
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signatureCount
- The total number of signatures across all characteristic sets. -
instanceCount
- The total number of characteristic-set instances. -
predicateCount
- The total number of unique predicates.
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toBuilder
Description copied from interface:ToCopyableBuilder
Take this object and create a builder that contains all of the current property values of this object.- Specified by:
toBuilder
in interfaceToCopyableBuilder<Statistics.Builder,
Statistics> - Returns:
- a builder for type T
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builder
-
serializableBuilderClass
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hashCode
public final int hashCode() -
equals
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equalsBySdkFields
Description copied from interface:SdkPojo
Indicates whether some other object is "equal to" this one by SDK fields. An SDK field is a modeled, non-inherited field in anSdkPojo
class, and is generated based on a service model.If an
SdkPojo
class does not have any inherited fields,equalsBySdkFields
andequals
are essentially the same.- Specified by:
equalsBySdkFields
in interfaceSdkPojo
- Parameters:
obj
- the object to be compared with- Returns:
- true if the other object equals to this object by sdk fields, false otherwise.
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toString
Returns a string representation of this object. This is useful for testing and debugging. Sensitive data will be redacted from this string using a placeholder value. -
getValueForField
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sdkFields
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