Class Mapping

java.lang.Object
software.amazon.awssdk.services.glue.model.Mapping
All Implemented Interfaces:
Serializable, SdkPojo, ToCopyableBuilder<Mapping.Builder,Mapping>
@Generated("software.amazon.awssdk:codegen") public final class Mapping extends Object implements SdkPojo, Serializable, ToCopyableBuilder<Mapping.Builder,Mapping>

Specifies the mapping of data property keys.

See Also:

  • Method Details

    • toKey

      public final String toKey()

      After the apply mapping, what the name of the column should be. Can be the same as FromPath.

      Returns:
      After the apply mapping, what the name of the column should be. Can be the same as FromPath.

    • hasFromPath

      public final boolean hasFromPath()
      For responses, this returns true if the service returned a value for the FromPath property. This DOES NOT check that the value is non-empty (for which, you should check the isEmpty() 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.

    • fromPath

      public final List<String> fromPath()

      The table or column to be modified.

      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 hasFromPath() method.

      Returns:
      The table or column to be modified.

    • fromType

      public final String fromType()

      The type of the data to be modified.

      Returns:
      The type of the data to be modified.

    • toType

      public final String toType()

      The data type that the data is to be modified to.

      Returns:
      The data type that the data is to be modified to.

    • dropped

      public final Boolean dropped()

      If true, then the column is removed.

      Returns:
      If true, then the column is removed.

    • hasChildren

      public final boolean hasChildren()
      For responses, this returns true if the service returned a value for the Children property. This DOES NOT check that the value is non-empty (for which, you should check the isEmpty() 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.

    • children

      public final List<Mapping> children()

      Only applicable to nested data structures. If you want to change the parent structure, but also one of its children, you can fill out this data strucutre. It is also Mapping, but its FromPath will be the parent's FromPath plus the FromPath from this structure.

      For the children part, suppose you have the structure:

      { "FromPath": "OuterStructure", "ToKey": "OuterStructure", "ToType": "Struct", "Dropped": false, "Chidlren": [{ "FromPath": "inner", "ToKey": "inner", "ToType": "Double", "Dropped": false, }] }

      You can specify a Mapping that looks like:

      { "FromPath": "OuterStructure", "ToKey": "OuterStructure", "ToType": "Struct", "Dropped": false, "Chidlren": [{ "FromPath": "inner", "ToKey": "inner", "ToType": "Double", "Dropped": false, }] }

      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 hasChildren() method.

      Returns:
      Only applicable to nested data structures. If you want to change the parent structure, but also one of its children, you can fill out this data strucutre. It is also Mapping, but its FromPath will be the parent's FromPath plus the FromPath from this structure.

      For the children part, suppose you have the structure:

      { "FromPath": "OuterStructure", "ToKey": "OuterStructure", "ToType": "Struct", "Dropped": false, "Chidlren": [{ "FromPath": "inner", "ToKey": "inner", "ToType": "Double", "Dropped": false, }] }

      You can specify a Mapping that looks like:

      { "FromPath": "OuterStructure", "ToKey": "OuterStructure", "ToType": "Struct", "Dropped": false, "Chidlren": [{ "FromPath": "inner", "ToKey": "inner", "ToType": "Double", "Dropped": false, }] }

    • toBuilder

      public Mapping.Builder 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 interface ToCopyableBuilder<Mapping.Builder,Mapping>
      Returns:
      a builder for type T

    • builder

      public static Mapping.Builder builder()

    • serializableBuilderClass

      public static Class<? extends Mapping.Builder> serializableBuilderClass()

    • hashCode

      public final int hashCode()
      Overrides:
      hashCode in class Object

    • equals

      public final boolean equals(Object obj)
      Overrides:
      equals in class Object

    • equalsBySdkFields

      public final boolean equalsBySdkFields(Object obj)
      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 an SdkPojo class, and is generated based on a service model.

      If an SdkPojo class does not have any inherited fields, equalsBySdkFields and equals are essentially the same.

      Specified by:
      equalsBySdkFields in interface SdkPojo
      Parameters:
      obj - the object to be compared with
      Returns:
      true if the other object equals to this object by sdk fields, false otherwise.

    • toString

      public final String 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.
      Overrides:
      toString in class Object

    • getValueForField

      public final <T> Optional<T> getValueForField(String fieldName, Class<T> clazz)

    • sdkFields

      public final List<SdkField<?>> sdkFields()
      Specified by:
      sdkFields in interface SdkPojo
      Returns:
      List of SdkField in this POJO. May be empty list but should never be null.