Class TableMetadata
- All Implemented Interfaces:
Serializable
,SdkPojo
,ToCopyableBuilder<TableMetadata.Builder,
TableMetadata>
Contains metadata for a table.
- See Also:
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Nested Class Summary
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Method Summary
Modifier and TypeMethodDescriptionstatic TableMetadata.Builder
builder()
columns()
A list of the columns in the table.final Instant
The time that the table was created.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 boolean
For responses, this returns true if the service returned a value for the Columns property.final int
hashCode()
final boolean
For responses, this returns true if the service returned a value for the Parameters property.final boolean
For responses, this returns true if the service returned a value for the PartitionKeys property.final Instant
The last time the table was accessed.final String
name()
The name of the table.A set of custom key/value pairs for table properties.A list of the partition keys in the table.static Class
<? extends TableMetadata.Builder> final String
The type of table.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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name
The name of the table.
- Returns:
- The name of the table.
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createTime
The time that the table was created.
- Returns:
- The time that the table was created.
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lastAccessTime
The last time the table was accessed.
- Returns:
- The last time the table was accessed.
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tableType
The type of table. In Athena, only
EXTERNAL_TABLE
is supported.- Returns:
- The type of table. In Athena, only
EXTERNAL_TABLE
is supported.
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hasColumns
public final boolean hasColumns()For responses, this returns true if the service returned a value for the Columns property. This DOES NOT check that the value is non-empty (for which, you should check theisEmpty()
method on the property). This is useful because the SDK will never return a null collection or map, but you may need to differentiate between the service returning nothing (or null) and the service returning an empty collection or map. For requests, this returns true if a value for the property was specified in the request builder, and false if a value was not specified. -
columns
A list of the columns in the table.
Attempts to modify the collection returned by this method will result in an UnsupportedOperationException.
This method will never return null. If you would like to know whether the service returned this field (so that you can differentiate between null and empty), you can use the
hasColumns()
method.- Returns:
- A list of the columns in the table.
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hasPartitionKeys
public final boolean hasPartitionKeys()For responses, this returns true if the service returned a value for the PartitionKeys property. This DOES NOT check that the value is non-empty (for which, you should check theisEmpty()
method on the property). This is useful because the SDK will never return a null collection or map, but you may need to differentiate between the service returning nothing (or null) and the service returning an empty collection or map. For requests, this returns true if a value for the property was specified in the request builder, and false if a value was not specified. -
partitionKeys
A list of the partition keys in the table.
Attempts to modify the collection returned by this method will result in an UnsupportedOperationException.
This method will never return null. If you would like to know whether the service returned this field (so that you can differentiate between null and empty), you can use the
hasPartitionKeys()
method.- Returns:
- A list of the partition keys in the table.
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hasParameters
public final boolean hasParameters()For responses, this returns true if the service returned a value for the Parameters property. This DOES NOT check that the value is non-empty (for which, you should check theisEmpty()
method on the property). This is useful because the SDK will never return a null collection or map, but you may need to differentiate between the service returning nothing (or null) and the service returning an empty collection or map. For requests, this returns true if a value for the property was specified in the request builder, and false if a value was not specified. -
parameters
A set of custom key/value pairs for table properties.
Attempts to modify the collection returned by this method will result in an UnsupportedOperationException.
This method will never return null. If you would like to know whether the service returned this field (so that you can differentiate between null and empty), you can use the
hasParameters()
method.- Returns:
- A set of custom key/value pairs for table properties.
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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<TableMetadata.Builder,
TableMetadata> - Returns:
- a builder for type T
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builder
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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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