Examples with CayenneRuntimeException org.apache.cayenne.CayenneRuntimeException used on opensource projects

Example 96 with CayenneRuntimeException

use of org.apache.cayenne.CayenneRuntimeException in project cayenne by apache.

the class OraclePkGenerator method longPkFromDatabase.

/**
 * Generates primary key by calling Oracle sequence corresponding to the
 * <code>dbEntity</code>. Executed SQL looks like this:
 *
 * <pre>
 *   SELECT pk_table_name.nextval FROM DUAL
 * </pre>
 *
 * @since 3.0
 */
@Override
protected long longPkFromDatabase(DataNode node, DbEntity entity) throws Exception {
    DbKeyGenerator pkGenerator = entity.getPrimaryKeyGenerator();
    String pkGeneratingSequenceName;
    if (pkGenerator != null && DbKeyGenerator.ORACLE_TYPE.equals(pkGenerator.getGeneratorType()) && pkGenerator.getGeneratorName() != null) {
        pkGeneratingSequenceName = pkGenerator.getGeneratorName();
    } else {
        pkGeneratingSequenceName = sequenceName(entity);
    }
    try (Connection con = node.getDataSource().getConnection()) {
        try (Statement st = con.createStatement()) {
            String sql = selectNextValQuery(pkGeneratingSequenceName);
            adapter.getJdbcEventLogger().log(sql);
            try (ResultSet rs = st.executeQuery(sql)) {
                if (!rs.next()) {
                    throw new CayenneRuntimeException("Error generating pk for DbEntity %s", entity.getName());
                }
                return rs.getLong(1);
            }
        }
    }
}

Example 97 with CayenneRuntimeException

use of org.apache.cayenne.CayenneRuntimeException in project cayenne by apache.

the class ObjEntity method translateToRelatedEntity.

/**
 * Transforms an Expression rooted in this entity to an analogous expression
 * rooted in related entity.
 *
 * @since 1.1
 */
@Override
public Expression translateToRelatedEntity(Expression expression, String relationshipPath) {
    if (expression == null) {
        return null;
    }
    if (relationshipPath == null) {
        return expression;
    }
    if (getDbEntity() == null) {
        throw new CayenneRuntimeException("Can't transform expression, no DbEntity for '%s'.", getName());
    }
    // converts all OBJ_PATH expressions to DB_PATH expressions
    // and pass control to the DB entity
    DBPathConverter transformer = new DBPathConverter();
    String dbPath = transformer.toDbPath(createPathIterator(relationshipPath));
    Expression dbClone = expression.transform(transformer);
    return getDbEntity().translateToRelatedEntity(dbClone, dbPath);
}

Example 98 with CayenneRuntimeException

use of org.apache.cayenne.CayenneRuntimeException in project cayenne by apache.

the class ObjRelationship method getValidRelationshipPath.

/**
 * Returns dot-separated path over DbRelationships, only including
 * components that have valid DbRelationships.
 */
String getValidRelationshipPath() {
    String path = getDbRelationshipPath();
    if (path == null) {
        return null;
    }
    ObjEntity entity = (ObjEntity) getSourceEntity();
    if (entity == null) {
        throw new CayenneRuntimeException("Can't resolve DbRelationships, null source ObjEntity");
    }
    DbEntity dbEntity = entity.getDbEntity();
    if (dbEntity == null) {
        return null;
    }
    StringBuilder validPath = new StringBuilder();
    try {
        for (PathComponent<DbAttribute, DbRelationship> pathComponent : dbEntity.resolvePath(new ASTDbPath(path), Collections.emptyMap())) {
            if (validPath.length() > 0) {
                validPath.append(Entity.PATH_SEPARATOR);
            }
            validPath.append(pathComponent.getName());
        }
    } catch (ExpressionException ex) {
    }
    return validPath.toString();
}

Example 99 with CayenneRuntimeException

use of org.apache.cayenne.CayenneRuntimeException in project cayenne by apache.

the class ObjRelationship method refreshFromPath.

/**
 * Rebuild a list of relationships if String relationshipPath has changed.
 */
final void refreshFromPath(String dbRelationshipPath, boolean stripInvalid) {
    // remove existing relationships
    dbRelationships.clear();
    if (dbRelationshipPath != null) {
        ObjEntity entity = (ObjEntity) getSourceEntity();
        if (entity == null) {
            throw new CayenneRuntimeException("Can't resolve DbRelationships, null source ObjEntity");
        }
        try {
            // add new relationships from path
            Iterator<CayenneMapEntry> it = entity.resolvePathComponents(new ASTDbPath(dbRelationshipPath));
            while (it.hasNext()) {
                DbRelationship relationship = (DbRelationship) it.next();
                dbRelationships.add(relationship);
            }
        } catch (ExpressionException ex) {
            if (!stripInvalid) {
                throw ex;
            }
        }
    }
    recalculateToManyValue();
    recalculateReadOnlyValue();
}

Example 100 with CayenneRuntimeException

use of org.apache.cayenne.CayenneRuntimeException in project cayenne by apache.

the class AbstractQuery method route.

/**
 * Implements default routing mechanism relying on the EntityResolver to find DataMap
 * based on the query root. This mechanism should be sufficient for most queries that
 * "know" their root.
 *
 * @since 1.2
 */
public void route(QueryRouter router, EntityResolver resolver, Query substitutedQuery) {
    DataMap map = getMetaData(resolver).getDataMap();
    if (map == null) {
        throw new CayenneRuntimeException("No DataMap found, can't route query %s", this);
    }
    router.route(router.engineForDataMap(map), this, substitutedQuery);
}