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

Class SpannerPersistentPropertyImpl

java.lang.Object

org.springframework.data.mapping.model.AbstractPersistentProperty<P>

org.springframework.data.mapping.model.AnnotationBasedPersistentProperty<SpannerPersistentProperty>

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

All Implemented Interfaces:

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

public class SpannerPersistentPropertyImpl
extends org.springframework.data.mapping.model.AnnotationBasedPersistentProperty<SpannerPersistentProperty>
implements SpannerPersistentProperty

Represents an implementation for SpannerPersistentProperty, which is a property of a SpannerPersistentEntity stored in a Cloud Spanner table.

Since:

1.1

Author:

Ray Tsang, Chengyuan Zhao

Property Summary

Type	Property and Description
boolean	isId Gets the value of the property idProperty.

Properties inherited from class org.springframework.data.mapping.model.AnnotationBasedPersistentProperty

isVersionProperty

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

isVersionProperty

Method Summary

Modifier and Type	Method and Description
protected org.springframework.data.mapping.Association<SpannerPersistentProperty>	createAssociation()
com.google.cloud.spanner.Type.Code	getAnnotatedColumnItemType() Optionally directly specify the column type in Cloud Spanner.
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 Cloud Spanner table mapped to this property.
OptionalLong	getMaxColumnLength() Gets the maximum data length of the column if provided.
Iterable<? extends org.springframework.data.util.TypeInformation<?>>	getPersistentEntityTypes() Only provides types that are also annotated with Table.
OptionalInt	getPrimaryKeyOrder() Gets the order of this column if it is part of the table's primary key.
boolean	isCommitTimestamp() If the column is a Cloud Spanner commit timestamp auto-populating column.
boolean	isEmbedded() True if the property is an embedded class containing more columns.
boolean	isGenerateSchemaNotNull() If the column's schema should be NOT NULL when generating a schema based on an entity class.
boolean	isIdProperty() Gets the value of the property idProperty.
boolean	isInterleaved() True if property is a collection of child entities.
boolean	isMapped() True if property corresponds to a column a Cloud Spanner table or child entities stored in Cloud Spanner.

Methods inherited from class org.springframework.data.mapping.model.AnnotationBasedPersistentProperty

findAnnotation, findPropertyOrOwnerAnnotation, getAssociationTargetType, getSpelExpression, isAnnotationPresent, isAssociation, isTransient, isVersionProperty, isWritable, toString, usePropertyAccess

Methods inherited from class org.springframework.data.mapping.model.AbstractPersistentProperty

equals, getActualType, getAssociation, getComponentType, getField, getGetter, getMapValueType, getName, getOwner, getProperty, getRawType, getSetter, getType, getTypeInformation, getWither, hashCode, isArray, isCollectionLike, isEntity, isImmutable, isMap

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

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

findAnnotation, findPropertyOrOwnerAnnotation, getActualType, getAssociation, getAssociationTargetType, getComponentType, getField, getGetter, getMapValueType, getName, getOwner, getRawType, getRequiredAnnotation, getRequiredAssociation, getRequiredField, getRequiredGetter, getRequiredSetter, getRequiredWither, getSetter, getSpelExpression, getType, getTypeInformation, getWither, hasActualTypeAnnotation, isAnnotationPresent, isArray, isAssociation, isCollectionLike, isEntity, isImmutable, isMap, isTransient, isVersionProperty, isWritable, usePropertyAccess

Property Detail

isId

public boolean isIdProperty

Gets the value of the property idProperty.

Specified by:

isIdProperty in interface org.springframework.data.mapping.PersistentProperty<SpannerPersistentProperty>

Overrides:

isIdProperty in class org.springframework.data.mapping.model.AnnotationBasedPersistentProperty<SpannerPersistentProperty>

Method Detail

getPersistentEntityTypes

public Iterable<? extends org.springframework.data.util.TypeInformation<?>> getPersistentEntityTypes()

Only provides types that are also annotated with Table.

Specified by:

getPersistentEntityTypes in interface org.springframework.data.mapping.PersistentProperty<SpannerPersistentProperty>

Overrides:

getPersistentEntityTypes in class org.springframework.data.mapping.model.AbstractPersistentProperty<SpannerPersistentProperty>

createAssociation

protected org.springframework.data.mapping.Association<SpannerPersistentProperty> createAssociation()

Specified by:

createAssociation in class org.springframework.data.mapping.model.AbstractPersistentProperty<SpannerPersistentProperty>

getColumnName

public String getColumnName()

Gets the name of the column in the Cloud Spanner table mapped to this property. The column name is resolved using the FieldNamingStrategy passed in to the SpannerPersistentPropertyImpl(Property, PersistentEntity, SimpleTypeHolder, FieldNamingStrategy) constructor. This is by default the by default

Specified by:

getColumnName in interface SpannerPersistentProperty

Returns:

the name of the column.

Throws:

org.springframework.data.mapping.MappingException - if the resolution fails

getColumnInnerType

public Class<?> getColumnInnerType()

Description copied from interface: SpannerPersistentProperty

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

Specified by:

getColumnInnerType in interface SpannerPersistentProperty

Returns:

the inner type of the column.

getPrimaryKeyOrder

public OptionalInt getPrimaryKeyOrder()

Description copied from interface: SpannerPersistentProperty

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.

Specified by:

getPrimaryKeyOrder in interface SpannerPersistentProperty

Returns:

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

isMapped

public boolean isMapped()

Description copied from interface: SpannerPersistentProperty

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

Specified by:

isMapped in interface SpannerPersistentProperty

Returns:

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

isEmbedded

public boolean isEmbedded()

Description copied from interface: SpannerPersistentProperty

True if the property is an embedded class containing more columns. False otherwise.

Specified by:

isEmbedded in interface SpannerPersistentProperty

Returns:

true if the property is embedded.

isInterleaved

public boolean isInterleaved()

Description copied from interface: SpannerPersistentProperty

True if property is a collection of child entities. False otherwise.

Specified by:

isInterleaved in interface SpannerPersistentProperty

Returns:

true if property is a collection of child entities corresponding to an interleaved child table. False otherwise.

getMaxColumnLength

public OptionalLong getMaxColumnLength()

Description copied from interface: SpannerPersistentProperty

Gets the maximum data length of the column if provided.

Specified by:

getMaxColumnLength in interface SpannerPersistentProperty

Returns:

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

isGenerateSchemaNotNull

public boolean isGenerateSchemaNotNull()

Description copied from interface: SpannerPersistentProperty

If the column's schema should be NOT NULL when generating a schema based on an entity class.

Specified by:

isGenerateSchemaNotNull in interface SpannerPersistentProperty

Returns:

true if the column should be NOT NULL in generated DDL. false otherwise.

isCommitTimestamp

public boolean isCommitTimestamp()

Description copied from interface: SpannerPersistentProperty

If the column is a Cloud Spanner commit timestamp auto-populating column. This property is always stored in Cloud Spanner as a Timestamp, and will update based on the latest commit.

Specified by:

isCommitTimestamp in interface SpannerPersistentProperty

Returns:

true if the property is an auto-populated commit timestamp. false otherwise.

getAnnotatedColumnItemType

public com.google.cloud.spanner.Type.Code getAnnotatedColumnItemType()

Description copied from interface: SpannerPersistentProperty

Optionally directly specify the column type in Cloud Spanner. For ARRAY columns this refers to type of the item the array holds. If this is not specified then it is inferred.

Specified by:

getAnnotatedColumnItemType in interface SpannerPersistentProperty

Returns:

the user-specified column item type.

isIdProperty

public boolean isIdProperty()

Gets the value of the property idProperty.

Specified by:

isIdProperty in interface org.springframework.data.mapping.PersistentProperty<SpannerPersistentProperty>

Overrides:

isIdProperty in class org.springframework.data.mapping.model.AnnotationBasedPersistentProperty<SpannerPersistentProperty>