org.springframework.cloud.gcp.data.spanner.core.mapping

Interface SpannerPersistentProperty

All Superinterfaces:

org.springframework.data.mapping.PersistentProperty<SpannerPersistentProperty>

All Known Implementing Classes:

SpannerCompositeKeyProperty, SpannerPersistentPropertyImpl

public interface SpannerPersistentProperty
extends org.springframework.data.mapping.PersistentProperty<SpannerPersistentProperty>

Interface for a PersistentProperty of a SpannerPersistentEntity to be stored in a Google Cloud Spanner table.

Author:

Ray Tsang, Chengyuan Zhao

Property Summary

Properties inherited from interface org.springframework.data.mapping.PersistentProperty

isIdProperty, isVersionProperty

Method Summary

Modifier and Type	Method and Description
Class<?>	getColumnInnerType() Gets the inner type of the column, which is meaningful for columns of type ARRAY in Google Cloud Spanner.
String	getColumnName() Gets the name of the column in the Google Cloud Spanner table mapped to this property.
OptionalLong	getMaxColumnLength() Gets the maximum data length of the column if provided.
OptionalInt	getPrimaryKeyOrder() Gets the order of this column if it is part of the table's primary key.
boolean	isMapped() True if property corresponds to a column a Cloud Spanner table or child entities stored in Cloud Spanner.

Methods inherited from interface org.springframework.data.mapping.PersistentProperty

findAnnotation, findPropertyOrOwnerAnnotation, getActualType, getAssociation, getComponentType, getField, getGetter, getMapValueType, getName, getOwner, getPersistentEntityType, getPersistentEntityTypes, getRawType, getRequiredAnnotation, getRequiredAssociation, getRequiredField, getRequiredGetter, getRequiredSetter, getSetter, getSpelExpression, getType, getTypeInformation, isAnnotationPresent, isArray, isAssociation, isCollectionLike, isEntity, isIdProperty, isMap, isTransient, isVersionProperty, isWritable, usePropertyAccess

Method Detail

getColumnName

String getColumnName()

Gets the name of the column in the Google Cloud Spanner table mapped to this property.

Returns:

the name of the column.

getColumnInnerType

Class<?> getColumnInnerType()

Gets the inner type of the column, which is meaningful for columns of type ARRAY in Google Cloud Spanner.

Returns:

the inner type of the column.

getPrimaryKeyOrder

OptionalInt getPrimaryKeyOrder()

Gets the order of this column if it is part of the table's primary key. Will be empty or null if this column is not part of the primary key.

Returns:

An optional that is empty if no primary key order exists for the property.

getMaxColumnLength

OptionalLong getMaxColumnLength()

Gets the maximum data length of the column if provided.

Returns:

An optional that is empty if no maximum length was provided.

isMapped

boolean isMapped()

True if property corresponds to a column a Cloud Spanner table or child entities stored in Cloud Spanner. False otherwise.

Returns:

True if this property will be mapped to and from Cloud Spanner. False otherwise.