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org.hibernate.cfg.Ejb3JoinColumn Maven / Gradle / Ivy
/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* Copyright (c) 2010, Red Hat Inc. or third-party contributors as
* indicated by the @author tags or express copyright attribution
* statements applied by the authors. All third-party contributions are
* distributed under license by Red Hat Inc.
*
* This copyrighted material is made available to anyone wishing to use, modify,
* copy, or redistribute it subject to the terms and conditions of the GNU
* Lesser General Public License, as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
* for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this distribution; if not, write to:
* Free Software Foundation, Inc.
* 51 Franklin Street, Fifth Floor
* Boston, MA 02110-1301 USA
*/
package org.hibernate.cfg;
import java.util.HashSet;
import java.util.Iterator;
import java.util.Map;
import java.util.Set;
import javax.persistence.JoinColumn;
import javax.persistence.PrimaryKeyJoinColumn;
import org.hibernate.AnnotationException;
import org.hibernate.AssertionFailure;
import org.hibernate.MappingException;
import org.hibernate.annotations.JoinColumnOrFormula;
import org.hibernate.annotations.JoinColumnsOrFormulas;
import org.hibernate.annotations.JoinFormula;
import org.hibernate.annotations.common.reflection.XClass;
import org.hibernate.internal.util.StringHelper;
import org.hibernate.mapping.Column;
import org.hibernate.mapping.Join;
import org.hibernate.mapping.PersistentClass;
import org.hibernate.mapping.SimpleValue;
import org.hibernate.mapping.Table;
import org.hibernate.mapping.Value;
/**
* Wrap state of an EJB3 @JoinColumn annotation
* and build the Hibernate column mapping element
*
* @author Emmanuel Bernard
*/
@SuppressWarnings("unchecked")
public class Ejb3JoinColumn extends Ejb3Column {
/**
* property name repated to this column
*/
private String referencedColumn;
private String mappedBy;
//property name on the mapped by side if any
private String mappedByPropertyName;
//table name on the mapped by side if any
private String mappedByTableName;
private String mappedByEntityName;
private String mappedByJpaEntityName;
private boolean JPA2ElementCollection;
public void setJPA2ElementCollection(boolean JPA2ElementCollection) {
this.JPA2ElementCollection = JPA2ElementCollection;
}
// TODO hacky solution to get the information at property ref resolution
public String getManyToManyOwnerSideEntityName() {
return manyToManyOwnerSideEntityName;
}
public void setManyToManyOwnerSideEntityName(String manyToManyOwnerSideEntityName) {
this.manyToManyOwnerSideEntityName = manyToManyOwnerSideEntityName;
}
private String manyToManyOwnerSideEntityName;
public void setReferencedColumn(String referencedColumn) {
this.referencedColumn = referencedColumn;
}
public String getMappedBy() {
return mappedBy;
}
public void setMappedBy(String mappedBy) {
this.mappedBy = mappedBy;
}
//Due to @AnnotationOverride overriding rules, I don't want the constructor to be public
private Ejb3JoinColumn() {
setMappedBy( BinderHelper.ANNOTATION_STRING_DEFAULT );
}
//Due to @AnnotationOverride overriding rules, I don't want the constructor to be public
//TODO get rid of it and use setters
private Ejb3JoinColumn(
String sqlType,
String name,
boolean nullable,
boolean unique,
boolean insertable,
boolean updatable,
String referencedColumn,
String secondaryTable,
Map joins,
PropertyHolder propertyHolder,
String propertyName,
String mappedBy,
boolean isImplicit,
Mappings mappings) {
super();
setImplicit( isImplicit );
setSqlType( sqlType );
setLogicalColumnName( name );
setNullable( nullable );
setUnique( unique );
setInsertable( insertable );
setUpdatable( updatable );
setExplicitTableName( secondaryTable );
setPropertyHolder( propertyHolder );
setJoins( joins );
setMappings( mappings );
setPropertyName( BinderHelper.getRelativePath( propertyHolder, propertyName ) );
bind();
this.referencedColumn = referencedColumn;
this.mappedBy = mappedBy;
}
public String getReferencedColumn() {
return referencedColumn;
}
public static Ejb3JoinColumn[] buildJoinColumnsOrFormulas(
JoinColumnsOrFormulas anns,
String mappedBy,
Map joins,
PropertyHolder propertyHolder,
String propertyName,
Mappings mappings) {
JoinColumnOrFormula [] ann = anns.value();
Ejb3JoinColumn [] joinColumns = new Ejb3JoinColumn[ann.length];
for (int i = 0; i < ann.length; i++) {
JoinColumnOrFormula join = ann[i];
JoinFormula formula = join.formula();
if (formula.value() != null && !formula.value().equals("")) {
joinColumns[i] = buildJoinFormula(
formula, mappedBy, joins, propertyHolder, propertyName, mappings
);
}
else {
joinColumns[i] = buildJoinColumns(
new JoinColumn[] { join.column() }, mappedBy, joins, propertyHolder, propertyName, mappings
)[0];
}
}
return joinColumns;
}
/**
* build join formula
*/
public static Ejb3JoinColumn buildJoinFormula(
JoinFormula ann,
String mappedBy,
Map joins,
PropertyHolder propertyHolder,
String propertyName,
Mappings mappings) {
Ejb3JoinColumn formulaColumn = new Ejb3JoinColumn();
formulaColumn.setFormula( ann.value() );
formulaColumn.setReferencedColumn(ann.referencedColumnName());
formulaColumn.setMappings( mappings );
formulaColumn.setPropertyHolder( propertyHolder );
formulaColumn.setJoins( joins );
formulaColumn.setPropertyName( BinderHelper.getRelativePath( propertyHolder, propertyName ) );
formulaColumn.bind();
return formulaColumn;
}
public static Ejb3JoinColumn[] buildJoinColumns(
JoinColumn[] anns,
String mappedBy,
Map joins,
PropertyHolder propertyHolder,
String propertyName,
Mappings mappings) {
return buildJoinColumnsWithDefaultColumnSuffix(
anns, mappedBy, joins, propertyHolder, propertyName, "", mappings
);
}
public static Ejb3JoinColumn[] buildJoinColumnsWithDefaultColumnSuffix(
JoinColumn[] anns,
String mappedBy,
Map joins,
PropertyHolder propertyHolder,
String propertyName,
String suffixForDefaultColumnName,
Mappings mappings) {
JoinColumn[] actualColumns = propertyHolder.getOverriddenJoinColumn(
StringHelper.qualify( propertyHolder.getPath(), propertyName )
);
if ( actualColumns == null ) actualColumns = anns;
if ( actualColumns == null || actualColumns.length == 0 ) {
return new Ejb3JoinColumn[] {
buildJoinColumn(
null,
mappedBy,
joins,
propertyHolder,
propertyName,
suffixForDefaultColumnName,
mappings )
};
}
else {
int size = actualColumns.length;
Ejb3JoinColumn[] result = new Ejb3JoinColumn[size];
for (int index = 0; index < size; index++) {
result[index] = buildJoinColumn(
actualColumns[index],
mappedBy,
joins,
propertyHolder,
propertyName,
suffixForDefaultColumnName,
mappings
);
}
return result;
}
}
/**
* build join column for SecondaryTables
*/
private static Ejb3JoinColumn buildJoinColumn(
JoinColumn ann,
String mappedBy, Map joins,
PropertyHolder propertyHolder,
String propertyName,
String suffixForDefaultColumnName,
Mappings mappings) {
if ( ann != null ) {
if ( BinderHelper.isEmptyAnnotationValue( mappedBy ) ) {
throw new AnnotationException(
"Illegal attempt to define a @JoinColumn with a mappedBy association: "
+ BinderHelper.getRelativePath( propertyHolder, propertyName )
);
}
Ejb3JoinColumn joinColumn = new Ejb3JoinColumn();
joinColumn.setMappings( mappings );
joinColumn.setJoinAnnotation( ann, null );
if ( StringHelper.isEmpty( joinColumn.getLogicalColumnName() )
&& ! StringHelper.isEmpty( suffixForDefaultColumnName ) ) {
joinColumn.setLogicalColumnName( propertyName + suffixForDefaultColumnName );
}
joinColumn.setJoins( joins );
joinColumn.setPropertyHolder( propertyHolder );
joinColumn.setPropertyName( BinderHelper.getRelativePath( propertyHolder, propertyName ) );
joinColumn.setImplicit( false );
joinColumn.bind();
return joinColumn;
}
else {
Ejb3JoinColumn joinColumn = new Ejb3JoinColumn();
joinColumn.setMappedBy( mappedBy );
joinColumn.setJoins( joins );
joinColumn.setPropertyHolder( propertyHolder );
joinColumn.setPropertyName(
BinderHelper.getRelativePath( propertyHolder, propertyName )
);
// property name + suffix is an "explicit" column name
if ( !StringHelper.isEmpty( suffixForDefaultColumnName ) ) {
joinColumn.setLogicalColumnName( propertyName + suffixForDefaultColumnName );
joinColumn.setImplicit( false );
}
else {
joinColumn.setImplicit( true );
}
joinColumn.setMappings( mappings );
joinColumn.bind();
return joinColumn;
}
}
// TODO default name still useful in association table
public void setJoinAnnotation(JoinColumn annJoin, String defaultName) {
if ( annJoin == null ) {
setImplicit( true );
}
else {
setImplicit( false );
final ObjectNameNormalizer nameNormalizer = getMappings().getObjectNameNormalizer();
if ( !BinderHelper.isEmptyAnnotationValue( annJoin.columnDefinition() ) ) setSqlType( annJoin.columnDefinition() );
if ( !BinderHelper.isEmptyAnnotationValue( annJoin.name() ) ) setLogicalColumnName( annJoin.name() );
setNullable( annJoin.nullable() );
setUnique( annJoin.unique() );
setInsertable( annJoin.insertable() );
setUpdatable( annJoin.updatable() );
setReferencedColumn( annJoin.referencedColumnName() );
final String tableName = !BinderHelper.isEmptyAnnotationValue( annJoin.table() )
? nameNormalizer.normalizeIdentifierQuoting( getNamingStrategyDelegate().toPhysicalTableName(
annJoin.table()
) )
: "";
setExplicitTableName( tableName );
}
}
/**
* Build JoinColumn for a JOINED hierarchy
*/
public static Ejb3JoinColumn buildJoinColumn(
PrimaryKeyJoinColumn pkJoinAnn,
JoinColumn joinAnn,
Value identifier,
Map joins,
PropertyHolder propertyHolder,
Mappings mappings) {
Column col = (Column) identifier.getColumnIterator().next();
String defaultName = mappings.getLogicalColumnName( col.getQuotedName(), identifier.getTable() );
if ( pkJoinAnn != null || joinAnn != null ) {
String colName;
String columnDefinition;
String referencedColumnName;
if ( pkJoinAnn != null ) {
colName = pkJoinAnn.name();
columnDefinition = pkJoinAnn.columnDefinition();
referencedColumnName = pkJoinAnn.referencedColumnName();
}
else {
colName = joinAnn.name();
columnDefinition = joinAnn.columnDefinition();
referencedColumnName = joinAnn.referencedColumnName();
}
String sqlType = "".equals( columnDefinition )
? null
: mappings.getObjectNameNormalizer().normalizeIdentifierQuoting( columnDefinition );
String name = "".equals( colName )
? defaultName
: colName;
name = mappings.getObjectNameNormalizer().normalizeIdentifierQuoting( name );
return new Ejb3JoinColumn(
sqlType,
name, false, false,
true, true,
referencedColumnName,
null, joins,
propertyHolder, null, null, false, mappings
);
}
else {
defaultName = mappings.getObjectNameNormalizer().normalizeIdentifierQuoting( defaultName );
return new Ejb3JoinColumn(
null, defaultName,
false, false, true, true, null, null,
joins, propertyHolder, null, null, true, mappings
);
}
}
/**
* Override persistent class on oneToMany Cases for late settings
* Must only be used on second level pass binding
*/
public void setPersistentClass(
PersistentClass persistentClass,
Map joins,
Map inheritanceStatePerClass) {
// TODO shouldn't we deduce the classname from the persistentclasS?
this.propertyHolder = PropertyHolderBuilder.buildPropertyHolder( persistentClass, joins, getMappings(), inheritanceStatePerClass );
}
public static void checkIfJoinColumn(Object columns, PropertyHolder holder, PropertyData property) {
if ( !( columns instanceof Ejb3JoinColumn[] ) ) {
throw new AnnotationException(
"@Column cannot be used on an association property: "
+ holder.getEntityName()
+ "."
+ property.getPropertyName()
);
}
}
public void copyReferencedStructureAndCreateDefaultJoinColumns(
PersistentClass referencedEntity,
Iterator columnIterator,
SimpleValue value) {
if ( !isNameDeferred() ) {
throw new AssertionFailure( "Building implicit column but the column is not implicit" );
}
while ( columnIterator.hasNext() ) {
Column synthCol = (Column) columnIterator.next();
this.linkValueUsingDefaultColumnNaming( synthCol, referencedEntity, value );
}
//reset for the future
setMappingColumn( null );
}
public void linkValueUsingDefaultColumnNaming(
Column referencedColumn,
PersistentClass referencedEntity,
SimpleValue value) {
String columnName;
String logicalReferencedColumn = getMappings().getLogicalColumnName(
referencedColumn.getQuotedName(), referencedEntity.getTable()
);
columnName = buildDefaultColumnName( referencedEntity, logicalReferencedColumn );
//yuk side effect on an implicit column
setLogicalColumnName( columnName );
setReferencedColumn( logicalReferencedColumn );
initMappingColumn(
columnName,
null, referencedColumn.getLength(),
referencedColumn.getPrecision(),
referencedColumn.getScale(),
getMappingColumn() != null ? getMappingColumn().isNullable() : false,
referencedColumn.getSqlType(),
getMappingColumn() != null ? getMappingColumn().isUnique() : false,
false
);
linkWithValue( value );
}
public void addDefaultJoinColumnName(PersistentClass referencedEntity, String logicalReferencedColumn) {
final String columnName = buildDefaultColumnName( referencedEntity, logicalReferencedColumn );
getMappingColumn().setName( columnName );
setLogicalColumnName( columnName );
}
private String buildDefaultColumnName(PersistentClass referencedEntity, String logicalReferencedColumn) {
String columnName;
boolean mappedBySide = mappedByTableName != null || mappedByPropertyName != null;
boolean ownerSide = getPropertyName() != null;
Boolean isRefColumnQuoted = StringHelper.isQuoted( logicalReferencedColumn );
String unquotedLogicalReferenceColumn = isRefColumnQuoted ?
StringHelper.unquote( logicalReferencedColumn ) :
logicalReferencedColumn;
if ( mappedBySide ) {
String unquotedMappedbyTable = StringHelper.unquote( mappedByTableName );
if ( JPA2ElementCollection ) {
columnName = getNamingStrategyDelegate().determineImplicitElementCollectionJoinColumnName(
mappedByEntityName,
mappedByJpaEntityName,
unquotedMappedbyTable,
unquotedLogicalReferenceColumn,
mappedByPropertyName
);
}
else {
columnName = getNamingStrategyDelegate().determineImplicitEntityAssociationJoinColumnName(
mappedByEntityName,
mappedByJpaEntityName,
unquotedMappedbyTable,
unquotedLogicalReferenceColumn,
mappedByPropertyName
);
}
//one element was quoted so we quote
if ( isRefColumnQuoted || StringHelper.isQuoted( mappedByTableName ) ) {
columnName = StringHelper.quote( columnName );
}
}
else if ( ownerSide ) {
String logicalTableName = getMappings().getLogicalTableName( referencedEntity.getTable() );
String unquotedLogicalTableName = StringHelper.unquote( logicalTableName );
columnName = getNamingStrategyDelegate().determineImplicitEntityAssociationJoinColumnName(
referencedEntity.getEntityName(),
referencedEntity.getJpaEntityName(),
unquotedLogicalTableName,
unquotedLogicalReferenceColumn,
getPropertyName()
);
//one element was quoted so we quote
if ( isRefColumnQuoted || StringHelper.isQuoted( logicalTableName ) ) {
columnName = StringHelper.quote( columnName );
}
}
else {
//is an intra-entity hierarchy table join so copy the name by default
String logicalTableName = getMappings().getLogicalTableName( referencedEntity.getTable() );
String unquotedLogicalTableName = StringHelper.unquote( logicalTableName );
columnName = getNamingStrategyDelegate().toPhysicalJoinKeyColumnName(
unquotedLogicalReferenceColumn,
unquotedLogicalTableName
);
//one element was quoted so we quote
if ( isRefColumnQuoted || StringHelper.isQuoted( logicalTableName ) ) {
columnName = StringHelper.quote( columnName );
}
}
return columnName;
}
/**
* used for mappedBy cases
*/
public void linkValueUsingAColumnCopy(Column column, SimpleValue value) {
initMappingColumn(
//column.getName(),
column.getQuotedName(),
null, column.getLength(),
column.getPrecision(),
column.getScale(),
getMappingColumn().isNullable(),
column.getSqlType(),
getMappingColumn().isUnique(),
false //We do copy no strategy here
);
linkWithValue( value );
}
@Override
protected void addColumnBinding(SimpleValue value) {
if ( StringHelper.isEmpty( mappedBy ) ) {
// was the column explicitly quoted in the mapping/annotation
// TODO: in metamodel, we need to better split global quoting and explicit quoting w/ respect to logical names
boolean isLogicalColumnQuoted = StringHelper.isQuoted( getLogicalColumnName() );
final ObjectNameNormalizer nameNormalizer = getMappings().getObjectNameNormalizer();
final String logicalColumnName = nameNormalizer.normalizeIdentifierQuoting( getLogicalColumnName() );
final String referencedColumn = nameNormalizer.normalizeIdentifierQuoting( getReferencedColumn() );
final String unquotedLogColName = StringHelper.unquote( logicalColumnName );
final String unquotedRefColumn = StringHelper.unquote( referencedColumn );
String logicalCollectionColumnName = getNamingStrategyDelegate().determineLogicalCollectionColumnName(
unquotedLogColName,
getPropertyName(),
unquotedRefColumn
);
if ( isLogicalColumnQuoted ) {
logicalCollectionColumnName = StringHelper.quote( logicalCollectionColumnName );
}
getMappings().addColumnBinding( logicalCollectionColumnName, getMappingColumn(), value.getTable() );
}
}
//keep it JDK 1.4 compliant
//implicit way
public static final int NO_REFERENCE = 0;
//reference to the pk in an explicit order
public static final int PK_REFERENCE = 1;
//reference to non pk columns
public static final int NON_PK_REFERENCE = 2;
public static int checkReferencedColumnsType(
Ejb3JoinColumn[] columns,
PersistentClass referencedEntity,
Mappings mappings) {
//convenient container to find whether a column is an id one or not
Set idColumns = new HashSet();
Iterator idColumnsIt = referencedEntity.getKey().getColumnIterator();
while ( idColumnsIt.hasNext() ) {
idColumns.add( (Column) idColumnsIt.next() );
}
boolean isFkReferencedColumnName = false;
boolean noReferencedColumn = true;
//build the list of potential tables
if ( columns.length == 0 ) return NO_REFERENCE; //shortcut
Object columnOwner = BinderHelper.findColumnOwner(
referencedEntity, columns[0].getReferencedColumn(), mappings
);
if ( columnOwner == null ) {
try {
throw new MappingException(
"Unable to find column with logical name: "
+ columns[0].getReferencedColumn() + " in " + referencedEntity.getTable() + " and its related "
+ "supertables and secondary tables"
);
}
catch (MappingException e) {
throw new RecoverableException( e.getMessage(), e );
}
}
Table matchingTable = columnOwner instanceof PersistentClass ?
( (PersistentClass) columnOwner ).getTable() :
( (Join) columnOwner ).getTable();
//check each referenced column
for (Ejb3JoinColumn ejb3Column : columns) {
String logicalReferencedColumnName = ejb3Column.getReferencedColumn();
if ( StringHelper.isNotEmpty( logicalReferencedColumnName ) ) {
String referencedColumnName;
try {
referencedColumnName = mappings.getPhysicalColumnName( logicalReferencedColumnName, matchingTable );
}
catch (MappingException me) {
//rewrite the exception
throw new MappingException(
"Unable to find column with logical name: "
+ logicalReferencedColumnName + " in " + matchingTable.getName()
);
}
noReferencedColumn = false;
Column refCol = new Column( referencedColumnName );
boolean contains = idColumns.contains( refCol );
if ( !contains ) {
isFkReferencedColumnName = true;
break; //we know the state
}
}
}
if ( isFkReferencedColumnName ) {
return NON_PK_REFERENCE;
}
else if ( noReferencedColumn ) {
return NO_REFERENCE;
}
else if ( idColumns.size() != columns.length ) {
//reference use PK but is a subset or a superset
return NON_PK_REFERENCE;
}
else {
return PK_REFERENCE;
}
}
/**
* Called to apply column definitions from the referenced FK column to this column.
*
* @param column the referenced column.
*/
public void overrideFromReferencedColumnIfNecessary(org.hibernate.mapping.Column column) {
if (getMappingColumn() != null) {
// columnDefinition can also be specified using @JoinColumn, hence we have to check
// whether it is set or not
if ( StringHelper.isEmpty( sqlType ) ) {
sqlType = column.getSqlType();
getMappingColumn().setSqlType( sqlType );
}
// these properties can only be applied on the referenced column - we can just take them over
getMappingColumn().setLength(column.getLength());
getMappingColumn().setPrecision(column.getPrecision());
getMappingColumn().setScale(column.getScale());
}
}
@Override
public void redefineColumnName(String columnName, String propertyName, boolean applyNamingStrategy) {
if ( StringHelper.isNotEmpty( columnName ) ) {
getMappingColumn().setName(
applyNamingStrategy ?
getNamingStrategyDelegate().toPhysicalColumnName( columnName ) :
columnName
);
}
}
public static Ejb3JoinColumn[] buildJoinTableJoinColumns(
JoinColumn[] annJoins,
Map secondaryTables,
PropertyHolder propertyHolder,
String propertyName,
String mappedBy,
Mappings mappings) {
Ejb3JoinColumn[] joinColumns;
if ( annJoins == null ) {
Ejb3JoinColumn currentJoinColumn = new Ejb3JoinColumn();
currentJoinColumn.setImplicit( true );
currentJoinColumn.setNullable( false ); //I break the spec, but it's for good
currentJoinColumn.setPropertyHolder( propertyHolder );
currentJoinColumn.setJoins( secondaryTables );
currentJoinColumn.setMappings( mappings );
currentJoinColumn.setPropertyName(
BinderHelper.getRelativePath( propertyHolder, propertyName )
);
currentJoinColumn.setMappedBy( mappedBy );
currentJoinColumn.bind();
joinColumns = new Ejb3JoinColumn[] {
currentJoinColumn
};
}
else {
joinColumns = new Ejb3JoinColumn[annJoins.length];
JoinColumn annJoin;
int length = annJoins.length;
for (int index = 0; index < length; index++) {
annJoin = annJoins[index];
Ejb3JoinColumn currentJoinColumn = new Ejb3JoinColumn();
currentJoinColumn.setImplicit( true );
currentJoinColumn.setPropertyHolder( propertyHolder );
currentJoinColumn.setJoins( secondaryTables );
currentJoinColumn.setMappings( mappings );
currentJoinColumn.setPropertyName( BinderHelper.getRelativePath( propertyHolder, propertyName ) );
currentJoinColumn.setMappedBy( mappedBy );
currentJoinColumn.setJoinAnnotation( annJoin, propertyName );
currentJoinColumn.setNullable( false ); //I break the spec, but it's for good
//done after the annotation to override it
currentJoinColumn.bind();
joinColumns[index] = currentJoinColumn;
}
}
return joinColumns;
}
public void setMappedBy(String entityName, String jpaEntityName, String logicalTableName, String mappedByProperty) {
this.mappedByEntityName = entityName;
this.mappedByJpaEntityName = jpaEntityName;
this.mappedByTableName = logicalTableName;
this.mappedByPropertyName = mappedByProperty;
}
@Override
public String toString() {
final StringBuilder sb = new StringBuilder();
sb.append( "Ejb3JoinColumn" );
sb.append( "{logicalColumnName='" ).append( getLogicalColumnName() ).append( '\'' );
sb.append( ", referencedColumn='" ).append( referencedColumn ).append( '\'' );
sb.append( ", mappedBy='" ).append( mappedBy ).append( '\'' );
sb.append( '}' );
return sb.toString();
}
}
