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

Class SpannerSchemaUtils

java.lang.Object

org.springframework.cloud.gcp.data.spanner.core.admin.SpannerSchemaUtils

public class SpannerSchemaUtils
extends Object

Contains functions related to the table schema of entities.

Author:

Chengyuan Zhao

Constructor Summary

Constructors

Constructor and Description
SpannerSchemaUtils(SpannerMappingContext mappingContext, SpannerEntityProcessor spannerEntityProcessor)

Method Summary

Modifier and Type	Method and Description
<T> String	getCreateTableDDLString(Class<T> entityClass) Gets the DDL string to create the table for the given entity in Spanner.
String	getDropTableDDLString(Class entityClass) Gets the DDL string to drop the table for the given entity in Spanner.
com.google.cloud.spanner.Key	getKey(Object object) Gets the key for the given object.

Methods inherited from class java.lang.Object

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

Constructor Detail

SpannerSchemaUtils

public SpannerSchemaUtils(SpannerMappingContext mappingContext,
                          SpannerEntityProcessor spannerEntityProcessor)

Method Detail

getKey

public com.google.cloud.spanner.Key getKey(Object object)

Gets the key for the given object.

Parameters:

object - the object to get the key for

Returns:

the Spanner Key for the given object.

getCreateTableDDLString

public <T> String getCreateTableDDLString(Class<T> entityClass)

Gets the DDL string to create the table for the given entity in Spanner. This is just one of the possible schemas that can support the given entity type. The specific schema is determined by the configured property type converters used by the read and write methods in this SpannerOperations and will be compatible with those methods.

Parameters:

entityClass - the entity type.

Returns:

the DDL string.

getDropTableDDLString

public String getDropTableDDLString(Class entityClass)

Gets the DDL string to drop the table for the given entity in Spanner.

Parameters:

entityClass - the entity type.

Returns:

the DDL string.