Example usage for org.hibernate.persister.entity AbstractEntityPersister getKeyColumnNames

Introduction

In this page you can find the example usage for org.hibernate.persister.entity AbstractEntityPersister getKeyColumnNames.

Prototype

public String[] getKeyColumnNames() 

Source Link

Usage

From source file:com.blazebit.persistence.integration.hibernate.base.HibernateJpaProvider.java

License:Apache License

@Override
public JoinTable getJoinTable(EntityType<?> ownerType, String attributeName) {
    CollectionPersister persister = getCollectionPersister(ownerType, attributeName);
    if (persister instanceof QueryableCollection) {
        QueryableCollection queryableCollection = (QueryableCollection) persister;

        if (!queryableCollection.getElementType().isEntityType()) {
            String[] targetColumnMetaData = queryableCollection.getElementColumnNames();
            Map<String, String> targetColumnMapping = new HashMap<>();

            for (int i = 0; i < targetColumnMetaData.length; i++) {
                targetColumnMapping.put(targetColumnMetaData[i], targetColumnMetaData[i]);
            }/* w ww.j  a va 2 s .  c  o m*/
            return createJoinTable(ownerType, queryableCollection, targetColumnMapping, null, attributeName);
        } else if (queryableCollection.getElementPersister() instanceof Joinable) {
            String elementTableName = ((Joinable) queryableCollection.getElementPersister()).getTableName();
            if (!queryableCollection.getTableName().equals(elementTableName)) {
                String[] targetColumnMetaData = queryableCollection.getElementColumnNames();
                AbstractEntityPersister elementPersister = (AbstractEntityPersister) queryableCollection
                        .getElementPersister();
                String[] targetPrimaryKeyColumnMetaData = elementPersister.getKeyColumnNames();
                Map<String, String> targetIdColumnMapping = new HashMap<>();

                for (int i = 0; i < targetColumnMetaData.length; i++) {
                    targetIdColumnMapping.put(targetColumnMetaData[i], targetPrimaryKeyColumnMetaData[i]);
                }
                Set<String> idAttributeNames = getColumnMatchingAttributeNames(elementPersister,
                        Arrays.asList(targetPrimaryKeyColumnMetaData));
                return createJoinTable(ownerType, queryableCollection, targetIdColumnMapping, idAttributeNames,
                        attributeName);
            }
        }
    }
    return null;
}

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From source file:com.blazebit.persistence.integration.hibernate.base.HibernateJpaProvider.java

License:Apache License

private JoinTable createJoinTable(EntityType<?> ownerType, QueryableCollection queryableCollection,
        Map<String, String> targetColumnMapping, Set<String> targetIdAttributeNames, String attributeName) {
    String[] indexColumnNames = queryableCollection.getIndexColumnNames();
    Map<String, String> keyColumnMapping = null;
    Map<String, String> keyColumnTypes = null;
    if (indexColumnNames != null) {
        keyColumnMapping = new HashMap<>(indexColumnNames.length);
        keyColumnTypes = new HashMap<>(indexColumnNames.length);
        if (queryableCollection.getKeyType().isEntityType()) {
            throw new IllegalArgumentException(
                    "Determining the join table key foreign key mappings is not yet supported!");
        } else {// w  ww  . j  a v a  2 s .c o m
            keyColumnMapping.put(indexColumnNames[0], indexColumnNames[0]);
            keyColumnTypes.put(indexColumnNames[0], getColumnTypeForPropertyType(ownerType, attributeName,
                    queryableCollection.getFactory(), queryableCollection.getIndexType())[0]);
        }
    }
    AbstractEntityPersister ownerEntityPersister = (AbstractEntityPersister) queryableCollection
            .getOwnerEntityPersister();
    String[] primaryKeyColumnMetaData = ownerEntityPersister.getKeyColumnNames();
    String[] foreignKeyColumnMetaData = queryableCollection.getKeyColumnNames();
    Map<String, String> idColumnMapping = new HashMap<>(primaryKeyColumnMetaData.length);
    for (int i = 0; i < foreignKeyColumnMetaData.length; i++) {
        idColumnMapping.put(foreignKeyColumnMetaData[i], primaryKeyColumnMetaData[i]);
    }
    Set<String> idAttributeNames = getColumnMatchingAttributeNames(ownerEntityPersister,
            Arrays.asList(primaryKeyColumnMetaData));
    if (targetIdAttributeNames == null) {
        Type elementType = queryableCollection.getElementType();
        if (elementType instanceof ComponentType) {
            targetIdAttributeNames = new HashSet<>();
            collectPropertyNames(targetIdAttributeNames, null, elementType, queryableCollection.getFactory());
        }
    }

    return new JoinTable(queryableCollection.getTableName(), idAttributeNames, idColumnMapping,
            keyColumnMapping, keyColumnTypes, targetIdAttributeNames, targetColumnMapping);
}

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