Package com.thingworx.metadata

Class DataShapeDefinition

  • All Implemented Interfaces:
    IDiffableObject, INamedObject, java.io.Serializable, java.lang.Cloneable
    @ThingworxExtensionApiClass(since={6,6},
                            canInstantiate=true)
public final class DataShapeDefinition
extends NamedObject
implements java.lang.Cloneable

    Used to define fields for all data that is managed within ThingWorx. This includes, but is not limited to, all persisted data, transient data, and data in transit. DataShapeDefinition is used in the underpinnings of DataShapes, InfoTables, and StreamThings, as well as numerous other classes both directly and indirectly.

    A DataShapeDefinition is ultimately a wrapper around a FieldDefinitionCollection with some additional methods for matching, cloning, and analysis.

    See Also:
    FieldDefinitionCollection, DataShape, InfoTable, Serialized Form

    • Method Detail

      • hasField

        @ThingworxExtensionApiMethod(since={6,6})
public boolean hasField​(java.lang.String name)


        Tests if the field named exists in this definition.
        Parameters:
        name - the name of the field
        Returns:
        true if the field exists in this definition

      • hasPrimaryKey

        @ThingworxExtensionApiMethod(since={6,6})
public boolean hasPrimaryKey()


        Tests if this definition contains any fields that are designated as primary keys.
        Returns:
        true if any field belonging to this definition is a primary key, false if none of the fields are primary keys or no fields exist in this definition

      • getFieldDefinition

        @ThingworxExtensionApiMethod(since={6,6})
public FieldDefinition getFieldDefinition​(java.lang.String name)


        Returns the field definition with the specified name.
        Parameters:
        name - the name of the field to return
        Returns:
        the specified field definition, or null if the field does not exist

      • setFields

        @ThingworxExtensionApiMethod(since={6,6})
public void setFields​(FieldDefinitionCollection fields)


        Replaces the fields belonging to this data shape definition with the fields provided in the specified collection.
        Parameters:
        fields - the field definitions to assign to this data shape definition

      • clone

        @ThingworxExtensionApiMethod(since={6,6})
public DataShapeDefinition clone()


        Creates a deep clone of this data shape definition. All of the field definitions belonging to this object are also cloned.
        Overrides:
        clone in class java.lang.Object
        Returns:
        a clone of this data shape definition

      • matches

        @ThingworxExtensionApiMethod(since={6,6})
public boolean matches​(DataShapeDefinition ds1)


        Determines if this data shape definition has the same fields with the same base types as the provided data shape definition.
        Parameters:
        ds1 - the data shape defintion to compare against this one
        Returns:
        true if the data shape definitions have the same fields (ignoring aspects)

      • fromJSON

        @Deprecated
@ThingworxExtensionApiMethod(since={6,6},
                             deprecatedSince={8,4})
public static DataShapeDefinition fromJSON​(org.json.JSONObject jsonObject)
                                    throws java.lang.Exception
        Deprecated.


        Parses a serialized data shape definition as a JSON object. The JSON object must contain a mapping for the field definitions in order to be valid.
        Parameters:
        jsonObject - the JSON object containing the serialized data shape definition
        Returns:
        the resultant data shape definition
        Throws:
        java.lang.Exception - if the contents of the JSON object do not match the expected format

      • toJSON

        @Deprecated
@ThingworxExtensionApiMethod(since={6,6},
                             deprecatedSince={8,4})
public org.json.JSONObject toJSON()
                           throws java.lang.Exception
        Deprecated.
        no replacement


        Serializes this data shape definition into JSON format. The resulting JSON object will contain the full list of field definitions belonging to this data shape definition.
        Returns:
        a JSON object describing this data shape definition
        Throws:
        java.lang.Exception - a JSON exception occurs during serialization