Top Fields Constructors Methods
org.hibernate.metamodel.mapping.internal

public Class CollectionIdentifierDescriptorImpl

extends Object
implements CollectionIdentifierDescriptor, FetchOptions
Class Inheritance
All Implemented Interfaces
org.hibernate.sql.results.graph.FetchOptions, org.hibernate.sql.results.graph.FetchStyleAccess, org.hibernate.sql.results.graph.FetchTimingAccess, org.hibernate.metamodel.mapping.CollectionIdentifierDescriptor, org.hibernate.metamodel.mapping.BasicValuedModelPart, org.hibernate.metamodel.mapping.SelectableMapping, org.hibernate.metamodel.mapping.SqlTypedMapping, org.hibernate.sql.results.graph.Fetchable, org.hibernate.metamodel.mapping.ModelPart, org.hibernate.metamodel.mapping.MappingModelExpressible, org.hibernate.metamodel.mapping.Bindable, org.hibernate.metamodel.mapping.JdbcMappingContainer, org.hibernate.metamodel.mapping.ValuedModelPart, org.hibernate.metamodel.mapping.SelectableMappings, org.hibernate.metamodel.mapping.ValueMapping, org.hibernate.type.descriptor.java.JavaTypedExpressible, org.hibernate.metamodel.mapping.BasicValuedMapping, org.hibernate.metamodel.mapping.SqlExpressible, org.hibernate.metamodel.mapping.CollectionPart
Imports
java.util.function.BiConsumer, org.hibernate.cache.MutableCacheKeyBuilder, org.hibernate.engine.FetchStyle, .FetchTiming, org.hibernate.engine.spi.SessionFactoryImplementor, .SharedSessionContractImplementor, org.hibernate.internal.util.IndexedConsumer, org.hibernate.metamodel.mapping.CollectionIdentifierDescriptor, .EntityMappingType, .JdbcMapping, .MappingType, .SelectableConsumer, org.hibernate.metamodel.model.domain.NavigableRole, org.hibernate.persister.collection.CollectionPersister, org.hibernate.spi.NavigablePath, org.hibernate.sql.ast.spi.FromClauseAccess, .SqlAstCreationContext, .SqlAstCreationState, .SqlExpressionResolver, .SqlSelection, org.hibernate.sql.ast.tree.from.TableGroup, org.hibernate.sql.results.graph.DomainResult, .DomainResultCreationState, .Fetch, .FetchOptions, .FetchParent, org.hibernate.sql.results.graph.basic.BasicFetch, .BasicResult, org.hibernate.type.BasicType, org.hibernate.type.descriptor.java.JavaType
Author
Steve Ebersole

Field Summary

Modifier and TypeField and Description
private final CollectionPersister
collectionDescriptor

private final String
columnName

private final String
containingTableName

private final BasicType<?>
type

Constructor Summary

AccessConstructor and Description
public
CollectionIdentifierDescriptorImpl(CollectionPersister collectionDescriptor, String containingTableName, String columnName, BasicType<?> type)

Method Summary

Modifier and TypeMethod and Description
public void
addToCacheKey(MutableCacheKeyBuilder
the MutableCacheKey used to add the disassembled value and the hashCode
cacheKey, Object
the value to disassemble
value, SharedSessionContractImplementor
the SharedSessionContractImplementor
session)

Overrides default org.hibernate.metamodel.mapping.BasicValuedMapping.addToCacheKey.

Implements org.hibernate.metamodel.mapping.Bindable.addToCacheKey, org.hibernate.type.descriptor.java.JavaTypedExpressible.addToCacheKey.

Add to the MutableCacheKey the values obtained disassembling the value and the hasCode generated from the disassembled value.
public void
applySqlSelections(NavigablePath navigablePath, TableGroup tableGroup, DomainResultCreationState creationState)

Implements org.hibernate.metamodel.mapping.ModelPart.applySqlSelections.

Apply SQL selections for a specific reference to this ModelPart outside the domain query's root select clause.
public void
applySqlSelections(NavigablePath navigablePath, TableGroup tableGroup, DomainResultCreationState creationState, BiConsumer<SqlSelection, JdbcMapping> selectionConsumer)

Implements org.hibernate.metamodel.mapping.ModelPart.applySqlSelections.

Apply SQL selections for a specific reference to this ModelPart outside the domain query's root select clause.
public <X, Y> int
breakDownJdbcValues(Object domainValue, int offset, X x, Y y, ModelPart.JdbcValueBiConsumer<X, Y> valueConsumer, SharedSessionContractImplementor session)

Implements org.hibernate.metamodel.mapping.ModelPart.breakDownJdbcValues.

Breaks down the domain value to its constituent JDBC values.
public <T> DomainResult<T>
createDomainResult(NavigablePath navigablePath, TableGroup tableGroup, String resultVariable, DomainResultCreationState creationState)

Implements org.hibernate.metamodel.mapping.ModelPart.createDomainResult.

Create a DomainResult for a specific reference to this ModelPart.
public DomainResult<?>
createDomainResult(NavigablePath collectionPath, TableGroup tableGroup, DomainResultCreationState creationState)

public Object
disassemble(Object value, SharedSessionContractImplementor session)

Overrides default org.hibernate.metamodel.mapping.BasicValuedMapping.disassemble.

Implements org.hibernate.metamodel.mapping.Bindable.disassemble.

Breaks down a value of J into its simple pieces.
public EntityMappingType
findContainingEntityMapping()

Implements org.hibernate.metamodel.mapping.ModelPart.findContainingEntityMapping.

public <X, Y> int
forEachDisassembledJdbcValue(Object value, int offset, X x, Y y, Bindable.JdbcValuesBiConsumer<X, Y> valuesConsumer, SharedSessionContractImplementor session)

Implements org.hibernate.metamodel.mapping.Bindable.forEachDisassembledJdbcValue.

Like forEachDisassembledJdbcValue(Object, Object, Object, JdbcValuesBiConsumer, SharedSessionContractImplementor), but additionally receives an offset by which the selectionIndex is incremented when calling JdbcValuesBiConsumer#consume(int, Object, Object, Object, JdbcMapping).
public int
forEachJdbcType(int offset, IndexedConsumer<JdbcMapping> action)

Implements org.hibernate.metamodel.mapping.JdbcMappingContainer.forEachJdbcType.

Visit each JdbcMapping starting from the given offset
public int
forEachSelectable(int offset, SelectableConsumer consumer)

Overrides default org.hibernate.metamodel.mapping.ValuedModelPart.forEachSelectable, org.hibernate.metamodel.mapping.ModelPart.forEachSelectable, org.hibernate.metamodel.mapping.BasicValuedModelPart.forEachSelectable.

Visits each selectable mapping with the selectable index offset by the given value.
public Fetch
generateFetch(FetchParent
The parent of the Fetch we are generating
fetchParent, NavigablePath
The overall path within the graph
fetchablePath, FetchTiming
The requested fetch timing
fetchTiming, boolean selected, String resultVariable, DomainResultCreationState creationState)

Implements org.hibernate.sql.results.graph.Fetchable.generateFetch.

Generates a Fetch of this fetchable
public String
getColumnDefinition()

Implements org.hibernate.metamodel.mapping.SqlTypedMapping.getColumnDefinition.

public String
getContainingTableExpression()

Implements org.hibernate.metamodel.mapping.ValuedModelPart.getContainingTableExpression, org.hibernate.metamodel.mapping.SelectableMapping.getContainingTableExpression.

The table which contains the columns mapped by this value
public String
getCustomReadExpression()

Implements org.hibernate.metamodel.mapping.SelectableMapping.getCustomReadExpression.

The selection's read expression accounting for formula treatment as well as ColumnTransformer#read()
public String
getCustomWriteExpression()

Implements org.hibernate.metamodel.mapping.SelectableMapping.getCustomWriteExpression.

The selection's write expression accounting ColumnTransformer#write()
public int
getFetchableKey()

Implements org.hibernate.sql.results.graph.Fetchable.getFetchableKey.

The key that identifies this Fetchable within a FetchableContainer.
public String
getFetchableName()

Implements org.hibernate.sql.results.graph.Fetchable.getFetchableName.

The name of the fetchable.
public JavaType<?>
getJavaType()

Implements org.hibernate.metamodel.mapping.ModelPart.getJavaType.

The Java type for this part.
public JdbcMapping
getJdbcMapping()

Implements org.hibernate.metamodel.mapping.BasicValuedMapping.getJdbcMapping, org.hibernate.metamodel.mapping.SqlTypedMapping.getJdbcMapping.

Anything that is expressible at the SQL AST level would be of basic type.
public Long
getLength()

Implements org.hibernate.metamodel.mapping.SqlTypedMapping.getLength.

public FetchOptions
getMappedFetchOptions()

Implements org.hibernate.sql.results.graph.Fetchable.getMappedFetchOptions.

The configured fetch timing and style
public MappingType
getMappedType()

Implements org.hibernate.metamodel.mapping.ValueMapping.getMappedType.

Descriptor for the type of this mapping
public CollectionPart.Nature
getNature()

Implements org.hibernate.metamodel.mapping.CollectionPart.getNature.

public NavigableRole
getNavigableRole()

Implements org.hibernate.metamodel.mapping.ModelPart.getNavigableRole.

public MappingType
getPartMappingType()

Overrides default org.hibernate.metamodel.mapping.BasicValuedModelPart.getPartMappingType.

Implements org.hibernate.metamodel.mapping.ModelPart.getPartMappingType.

The type for this part.
public Integer
getPrecision()

Implements org.hibernate.metamodel.mapping.SqlTypedMapping.getPrecision.

public Integer
getScale()

Implements org.hibernate.metamodel.mapping.SqlTypedMapping.getScale.

public String
getSelectionExpression()

Implements org.hibernate.metamodel.mapping.SelectableMapping.getSelectionExpression.

The selection's expression.
public FetchStyle
getStyle()

Implements org.hibernate.sql.results.graph.FetchStyleAccess.getStyle.

public FetchTiming
getTiming()

Implements org.hibernate.sql.results.graph.FetchTimingAccess.getTiming.

public boolean
hasPartitionedSelectionMapping()

Overrides default org.hibernate.metamodel.mapping.BasicValuedModelPart.hasPartitionedSelectionMapping.

Implements org.hibernate.metamodel.mapping.ModelPart.hasPartitionedSelectionMapping.

public boolean
isFormula()

Implements org.hibernate.metamodel.mapping.SelectableMapping.isFormula.

Is the mapping a formula instead of a physical column?
public boolean
isInsertable()

Implements org.hibernate.metamodel.mapping.SelectableMapping.isInsertable.

public boolean
isNullable()

Implements org.hibernate.metamodel.mapping.SelectableMapping.isNullable.

Is the mapping considered nullable?
public boolean
isPartitioned()

Implements org.hibernate.metamodel.mapping.SelectableMapping.isPartitioned.

public boolean
isUpdateable()

Implements org.hibernate.metamodel.mapping.SelectableMapping.isUpdateable.

public String
toString()

Overrides java.lang.Object.toString.

Returns a string representation of the object.
Inherited from java.lang.Object:
cloneequalsfinalizegetClasshashCodenotifynotifyAllwaitwaitwait

Field Detail

collectionDescriptorback to summary
private final CollectionPersister collectionDescriptor
columnNameback to summary
private final String columnName
containingTableNameback to summary
private final String containingTableName
typeback to summary
private final BasicType<?> type

Constructor Detail

CollectionIdentifierDescriptorImplback to summary
public CollectionIdentifierDescriptorImpl(CollectionPersister collectionDescriptor, String containingTableName, String columnName, BasicType<?> type)

Method Detail

addToCacheKeyback to summary
public void addToCacheKey(MutableCacheKeyBuilder cacheKey, Object value, SharedSessionContractImplementor session)

Overrides default org.hibernate.metamodel.mapping.BasicValuedMapping.addToCacheKey.

Implements org.hibernate.metamodel.mapping.Bindable.addToCacheKey, org.hibernate.type.descriptor.java.JavaTypedExpressible.addToCacheKey.

Doc from org.hibernate.metamodel.mapping.Bindable.addToCacheKey.

Add to the MutableCacheKey the values obtained disassembling the value and the hasCode generated from the disassembled value.

Parameters
cacheKey:MutableCacheKeyBuilder

the MutableCacheKey used to add the disassembled value and the hashCode

value:Object

the value to disassemble

session:SharedSessionContractImplementor

the SharedSessionContractImplementor

Annotations
@Override
applySqlSelectionsback to summary
public void applySqlSelections(NavigablePath navigablePath, TableGroup tableGroup, DomainResultCreationState creationState)

Implements org.hibernate.metamodel.mapping.ModelPart.applySqlSelections.

Doc from org.hibernate.metamodel.mapping.ModelPart.applySqlSelections.

Apply SQL selections for a specific reference to this ModelPart outside the domain query's root select clause.

Annotations
@Override
applySqlSelectionsback to summary
public void applySqlSelections(NavigablePath navigablePath, TableGroup tableGroup, DomainResultCreationState creationState, BiConsumer<SqlSelection, JdbcMapping> selectionConsumer)

Implements org.hibernate.metamodel.mapping.ModelPart.applySqlSelections.

Doc from org.hibernate.metamodel.mapping.ModelPart.applySqlSelections.

Apply SQL selections for a specific reference to this ModelPart outside the domain query's root select clause.

Annotations
@Override
breakDownJdbcValuesback to summary
public <X, Y> int breakDownJdbcValues(Object domainValue, int offset, X x, Y y, ModelPart.JdbcValueBiConsumer<X, Y> valueConsumer, SharedSessionContractImplementor session)

Implements org.hibernate.metamodel.mapping.ModelPart.breakDownJdbcValues.

Doc from org.hibernate.metamodel.mapping.ModelPart.breakDownJdbcValues.

Breaks down the domain value to its constituent JDBC values. Think of it as breaking the multi-dimensional array into a visitable flat array. Additionally, it passes through the values X and Y to the consumer. Returns the amount of jdbc types that have been visited.

Annotations
@Override
createDomainResultback to summary
public <T> DomainResult<T> createDomainResult(NavigablePath navigablePath, TableGroup tableGroup, String resultVariable, DomainResultCreationState creationState)

Implements org.hibernate.metamodel.mapping.ModelPart.createDomainResult.

Doc from org.hibernate.metamodel.mapping.ModelPart.createDomainResult.

Create a DomainResult for a specific reference to this ModelPart.

Annotations
@Override
createDomainResultback to summary
public DomainResult<?> createDomainResult(NavigablePath collectionPath, TableGroup tableGroup, DomainResultCreationState creationState)
disassembleback to summary
public Object disassemble(Object value, SharedSessionContractImplementor session)

Overrides default org.hibernate.metamodel.mapping.BasicValuedMapping.disassemble.

Implements org.hibernate.metamodel.mapping.Bindable.disassemble.

Doc from org.hibernate.metamodel.mapping.Bindable.disassemble.

Breaks down a value of J into its simple pieces. E.g., an embedded value gets broken down into an array of its attribute state; a basic value converts to itself; etc.

Generally speaking, this is the form in which entity state is kept relative to a Session via EntityEntry. 

@Entity class Person {
    @Id Integer id;
    @Embedded Name name;
    int age;
}

@Embeddable class Name {
    String familiarName;
    String familyName;
}

At the top level, we would want to disassemble a Person value, so we'd ask the Bindable for the Person entity to disassemble. Given a Person value: 

Person( id=1, name=Name( 'Steve', 'Ebersole' ), 28 )

this disassemble would result in a multidimensional array: 

[ ["Steve", "Ebersole"], 28 ]

Note that the identifier is not part of this disassembled state. Note also how the embedded value results in a sub-array.

Annotations
@Override
findContainingEntityMappingback to summary
public EntityMappingType findContainingEntityMapping()

Implements org.hibernate.metamodel.mapping.ModelPart.findContainingEntityMapping.

Annotations
@Override
forEachDisassembledJdbcValueback to summary
public <X, Y> int forEachDisassembledJdbcValue(Object value, int offset, X x, Y y, Bindable.JdbcValuesBiConsumer<X, Y> valuesConsumer, SharedSessionContractImplementor session)

Implements org.hibernate.metamodel.mapping.Bindable.forEachDisassembledJdbcValue.

Doc from org.hibernate.metamodel.mapping.Bindable.forEachDisassembledJdbcValue.

Like forEachDisassembledJdbcValue(Object, Object, Object, JdbcValuesBiConsumer, SharedSessionContractImplementor), but additionally receives an offset by which the selectionIndex is incremented when calling JdbcValuesBiConsumer#consume(int, Object, Object, Object, JdbcMapping).

Annotations
@Override
forEachJdbcTypeback to summary
public int forEachJdbcType(int offset, IndexedConsumer<JdbcMapping> action)

Implements org.hibernate.metamodel.mapping.JdbcMappingContainer.forEachJdbcType.

Doc from org.hibernate.metamodel.mapping.JdbcMappingContainer.forEachJdbcType.

Visit each JdbcMapping starting from the given offset

Annotations
@Override
forEachSelectableback to summary
public int forEachSelectable(int offset, SelectableConsumer consumer)

Overrides default org.hibernate.metamodel.mapping.ValuedModelPart.forEachSelectable, org.hibernate.metamodel.mapping.ModelPart.forEachSelectable, org.hibernate.metamodel.mapping.BasicValuedModelPart.forEachSelectable.

Doc from org.hibernate.metamodel.mapping.ModelPart.forEachSelectable.

Visits each selectable mapping with the selectable index offset by the given value. Returns the amount of jdbc types that have been visited.

Annotations
@Override
generateFetchback to summary
public Fetch generateFetch(FetchParent fetchParent, NavigablePath fetchablePath, FetchTiming fetchTiming, boolean selected, String resultVariable, DomainResultCreationState creationState)

Implements org.hibernate.sql.results.graph.Fetchable.generateFetch.

Doc from org.hibernate.sql.results.graph.Fetchable.generateFetch.

Generates a Fetch of this fetchable

Parameters
fetchParent:FetchParent

The parent of the Fetch we are generating

fetchablePath:NavigablePath

The overall path within the graph

fetchTiming:FetchTiming

The requested fetch timing

Annotations
@Override
getColumnDefinitionback to summary
public String getColumnDefinition()

Implements org.hibernate.metamodel.mapping.SqlTypedMapping.getColumnDefinition.

Annotations
@Override
getContainingTableExpressionback to summary
public String getContainingTableExpression()

Implements org.hibernate.metamodel.mapping.ValuedModelPart.getContainingTableExpression, org.hibernate.metamodel.mapping.SelectableMapping.getContainingTableExpression.

Doc from org.hibernate.metamodel.mapping.ValuedModelPart.getContainingTableExpression.

The table which contains the columns mapped by this value

Annotations
@Override
getCustomReadExpressionback to summary
public String getCustomReadExpression()

Implements org.hibernate.metamodel.mapping.SelectableMapping.getCustomReadExpression.

Doc from org.hibernate.metamodel.mapping.SelectableMapping.getCustomReadExpression.

The selection's read expression accounting for formula treatment as well as ColumnTransformer#read()

Annotations
@Override
getCustomWriteExpressionback to summary
public String getCustomWriteExpression()

Implements org.hibernate.metamodel.mapping.SelectableMapping.getCustomWriteExpression.

Doc from org.hibernate.metamodel.mapping.SelectableMapping.getCustomWriteExpression.

The selection's write expression accounting ColumnTransformer#write()

Annotations
@Override
getFetchableKeyback to summary
public int getFetchableKey()

Implements org.hibernate.sql.results.graph.Fetchable.getFetchableKey.

Doc from org.hibernate.sql.results.graph.Fetchable.getFetchableKey.

The key that identifies this Fetchable within a FetchableContainer. If this Fetchable is part of FetchableContainer#visitFetchables(IndexedConsumer, EntityMappingType), the values is guaranteed to be between 0 (inclusive) and FetchableContainer#getNumberOfFetchableKeys() (exclusive). Other Fetchable objects may have a special negative value.

The main intent of this key is to index e.g. Fetch objects in an array.

Annotations
@Override
getFetchableNameback to summary
public String getFetchableName()

Implements org.hibernate.sql.results.graph.Fetchable.getFetchableName.

Doc from org.hibernate.sql.results.graph.Fetchable.getFetchableName.

The name of the fetchable. This is the part's "local name".

Annotations
@Override
getJavaTypeback to summary
public JavaType<?> getJavaType()

Implements org.hibernate.metamodel.mapping.ModelPart.getJavaType.

Doc from org.hibernate.metamodel.mapping.ModelPart.getJavaType.

The Java type for this part. Generally equivalent to MappingType#getMappedJavaType() relative to getPartMappingType()

Annotations
@Override
getJdbcMappingback to summary
public JdbcMapping getJdbcMapping()

Implements org.hibernate.metamodel.mapping.BasicValuedMapping.getJdbcMapping, org.hibernate.metamodel.mapping.SqlTypedMapping.getJdbcMapping.

Doc from org.hibernate.metamodel.mapping.SqlExpressible.getJdbcMapping.

Anything that is expressible at the SQL AST level would be of basic type.

Annotations
@Override
getLengthback to summary
public Long getLength()

Implements org.hibernate.metamodel.mapping.SqlTypedMapping.getLength.

Annotations
@Override
getMappedFetchOptionsback to summary
public FetchOptions getMappedFetchOptions()

Implements org.hibernate.sql.results.graph.Fetchable.getMappedFetchOptions.

Doc from org.hibernate.sql.results.graph.Fetchable.getMappedFetchOptions.

The configured fetch timing and style

Annotations
@Override
getMappedTypeback to summary
public MappingType getMappedType()

Implements org.hibernate.metamodel.mapping.ValueMapping.getMappedType.

Doc from org.hibernate.metamodel.mapping.ValueMapping.getMappedType.

Descriptor for the type of this mapping

Annotations
@Override
getNatureback to summary
public CollectionPart.Nature getNature()

Implements org.hibernate.metamodel.mapping.CollectionPart.getNature.

Annotations
@Override
getNavigableRoleback to summary
public NavigableRole getNavigableRole()

Implements org.hibernate.metamodel.mapping.ModelPart.getNavigableRole.

Annotations
@Override
getPartMappingTypeback to summary
public MappingType getPartMappingType()

Overrides default org.hibernate.metamodel.mapping.BasicValuedModelPart.getPartMappingType.

Implements org.hibernate.metamodel.mapping.ModelPart.getPartMappingType.

Doc from org.hibernate.metamodel.mapping.ModelPart.getPartMappingType.

The type for this part.

Annotations
@Override
getPrecisionback to summary
public Integer getPrecision()

Implements org.hibernate.metamodel.mapping.SqlTypedMapping.getPrecision.

Annotations
@Override
getScaleback to summary
public Integer getScale()

Implements org.hibernate.metamodel.mapping.SqlTypedMapping.getScale.

Annotations
@Override
getSelectionExpressionback to summary
public String getSelectionExpression()

Implements org.hibernate.metamodel.mapping.SelectableMapping.getSelectionExpression.

Doc from org.hibernate.metamodel.mapping.SelectableMapping.getSelectionExpression.

The selection's expression. This is the column name or formula

Annotations
@Override
getStyleback to summary
public FetchStyle getStyle()

Implements org.hibernate.sql.results.graph.FetchStyleAccess.getStyle.

Annotations
@Override
getTimingback to summary
public FetchTiming getTiming()

Implements org.hibernate.sql.results.graph.FetchTimingAccess.getTiming.

Annotations
@Override
hasPartitionedSelectionMappingback to summary
public boolean hasPartitionedSelectionMapping()

Overrides default org.hibernate.metamodel.mapping.BasicValuedModelPart.hasPartitionedSelectionMapping.

Implements org.hibernate.metamodel.mapping.ModelPart.hasPartitionedSelectionMapping.

Annotations
@Override
isFormulaback to summary
public boolean isFormula()

Implements org.hibernate.metamodel.mapping.SelectableMapping.isFormula.

Doc from org.hibernate.metamodel.mapping.SelectableMapping.isFormula.

Is the mapping a formula instead of a physical column?

Annotations
@Override
isInsertableback to summary
public boolean isInsertable()

Implements org.hibernate.metamodel.mapping.SelectableMapping.isInsertable.

Annotations
@Override
isNullableback to summary
public boolean isNullable()

Implements org.hibernate.metamodel.mapping.SelectableMapping.isNullable.

Doc from org.hibernate.metamodel.mapping.SelectableMapping.isNullable.

Is the mapping considered nullable?

Annotations
@Override
isPartitionedback to summary
public boolean isPartitioned()

Implements org.hibernate.metamodel.mapping.SelectableMapping.isPartitioned.

Annotations
@Override
isUpdateableback to summary
public boolean isUpdateable()

Implements org.hibernate.metamodel.mapping.SelectableMapping.isUpdateable.

Annotations
@Override
toStringback to summary
public String toString()

Overrides java.lang.Object.toString.

Doc from java.lang.Object.toString.

Returns a string representation of the object.

Returns:String

a string representation of the object.

Annotations
@Override