Package com.amazonaws.athena.connector.lambda.data

Class SchemaAware

java.lang.Object

com.amazonaws.athena.connector.lambda.data.SchemaAware

Direct Known Subclasses:

Block

public abstract class SchemaAware
extends Object

Defines a component that is aware of Apache Arrow Schema.

Constructor Summary

Constructors

Constructor	Description
SchemaAware()

Method Summary

Modifier and Type	Method	Description
List<org.apache.arrow.vector.types.pojo.Field>	getFields()	Provides access to the Fields on the Schema currently being used by this Object.
Map<String,String>	getMetaData()	Provides access to all avaialable metadata on the Schema.
String	getMetaData(String key)	Provides access to metadata stored on the Schema currently being used by this Object.
protected abstract org.apache.arrow.vector.types.pojo.Schema	internalGetSchema()	Provides access to the Schema object.

Methods inherited from class java.lang.Object

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

Constructor Detail

SchemaAware

public SchemaAware()

Method Detail

internalGetSchema

protected abstract org.apache.arrow.vector.types.pojo.Schema internalGetSchema()

Provides access to the Schema object.

Returns:

The Schema currently being used by this object.

getFields

public List<org.apache.arrow.vector.types.pojo.Field> getFields()

Provides access to the Fields on the Schema currently being used by this Object.

Returns:

The list of fields.

getMetaData

public String getMetaData(String key)

Provides access to metadata stored on the Schema currently being used by this Object.

Parameters:

key - The metadata key to lookup.

Returns:

The value associated with that key in the Schema's metadata, null if no such key exists.

getMetaData

public Map<String,String> getMetaData()

Provides access to all avaialable metadata on the Schema.

Returns:

All metadata key-value pairs as a map.