Examples of org.apache.ojb.broker.query.Query

org.apache.ojb.broker.query.Query
represents Queries that can be used by the OJB PersistenceBroker to retrieve Objects from the underlying DB. Until now there are two implementations: 1. QueryByCriteria, represents SELECT * FROM ... WHERE ... queries 2. QueryByIdentity, uses Example objects or OIDs as templates for the db lookup there could additional implementations, e.g for user defined SQL For the Criteria API I reused code from the COBRA project, as you will see by their class comments. I removed all stuff that relies on knowlegde of the DataDictionary or MetaData layer. The Query and Criteria classes thus don't know how to build SQL statements, as in the COBRA original sources. I use the this classes as mere data-structures, that are processed by the OJB Accesslayer (SqlGenerator, JdbcAccess). This design will allow to reuse the org.apache.ojb.broker.query package in other projects without breaking any references. I hope this will be useful for someone. @author Thomas Mahler @version $Id: Query.java,v 1.17.2.3 2005/12/21 22:27:09 tomdz Exp $

        if (permission.getId() == null)
        {
            Criteria criteria = new Criteria();
            criteria.addEqualTo("type", permission.getType());
            criteria.addEqualTo("name", permission.getName());
            Query query = QueryFactory.newQuery(PersistentJetspeedPermissionImpl.class, criteria);
            PersistentJetspeedPermission p = (PersistentJetspeedPermission)getPersistenceBrokerTemplate().getObjectByQuery(query);
            if (p == null)
            {
                throw new SecurityException(SecurityException.PERMISSION_DOES_NOT_EXIST.create(permission.getName()));
            }

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            principal = p;
        }
        Criteria criteria = new Criteria();
        criteria.addEqualTo("principalId", principal.getId());
        criteria.addEqualTo("permissionId", permission.getId());
        Query query = QueryFactory.newQuery(JetspeedPrincipalPermission.class,criteria);
        if (!checkExists || getPersistenceBrokerTemplate().getCount(query) == 0)
        {
            try
            {
                getPersistenceBrokerTemplate().store(new JetspeedPrincipalPermission(principal, permission));

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        if (permission.getId() == null)
        {
            Criteria criteria = new Criteria();
            criteria.addEqualTo("type", permission.getType());
            criteria.addEqualTo("name", permission.getName());
            Query query = QueryFactory.newQuery(PersistentJetspeedPermissionImpl.class, criteria);
            PersistentJetspeedPermission p = (PersistentJetspeedPermission)getPersistenceBrokerTemplate().getObjectByQuery(query);
            if (p == null)
            {
                throw new SecurityException(SecurityException.PERMISSION_DOES_NOT_EXIST.create(permission.getName()));
            }

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        }
        else
        {
            criteria.addEqualTo("permissionId", permission.getId());
        }
        Query query = QueryFactory.newQuery(JetspeedPrincipalPermission.class,criteria);
        try
        {
            getPersistenceBrokerTemplate().deleteByQuery(query);
        }
        catch (Exception pbe)

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        else
        {
            principalId = principal.getId();
        }
        criteria.addEqualTo("principalId", principalId);
        Query query = QueryFactory.newQuery(JetspeedPrincipalPermission.class,criteria);
        try
        {
            getPersistenceBrokerTemplate().deleteByQuery(query);
        }
        catch (Exception pbe)

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    public SecurityDomain getDomainByName(String domainName)
    {
      Criteria criteria = new Criteria();
        criteria.addEqualTo("name", domainName);
        Query query = QueryFactory.newQuery(SecurityDomainImpl.class,criteria);
        return (SecurityDomain) getPersistenceBrokerTemplate().getObjectByQuery(query);    
    }

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        filter.addEqualTo("fullPath", fullPath);
        // The isMappingOnly must not be true.
        // We don't need the mapping only user, mapping user can't be authenticated with this provider. 
        // we just need the true user.
        filter.addEqualTo("isMappingOnly", Boolean.FALSE);
        Query query = QueryFactory.newQuery(InternalUserPrincipalImpl.class, filter);
        return getPersistenceBrokerTemplate().getCount(query) == 1;
    }

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        UserPrincipal userPrincipal = new UserPrincipalImpl(username);
        String fullPath = userPrincipal.getFullPath();
        // Get user.
        Criteria filter = new Criteria();
        filter.addEqualTo("fullPath", fullPath);
        Query query = QueryFactory.newQuery(InternalUserPrincipalImpl.class, filter);
        InternalUserPrincipal internalUser = (InternalUserPrincipal) getPersistenceBrokerTemplate().getObjectByQuery(query);
        return internalUser;
    }

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        String fullPath = userPrincipal.getFullPath();
        // Get user.
        Criteria filter = new Criteria();
        filter.addEqualTo("fullPath", fullPath);
        filter.addEqualTo("isMappingOnly", new Boolean(isMappingOnly));
        Query query = QueryFactory.newQuery(InternalUserPrincipalImpl.class, filter);
        InternalUserPrincipal internalUser = (InternalUserPrincipal) getPersistenceBrokerTemplate().getObjectByQuery(query);
        return internalUser;
    }

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    public Iterator getInternalUserPrincipals(String filter)
    {
        Criteria queryCriteria = new Criteria();
        queryCriteria.addEqualTo("isMappingOnly", new Boolean(false));
        queryCriteria.addLike("fullPath", UserPrincipal.PREFS_USER_ROOT + filter + "%");
        Query query = QueryFactory.newQuery(InternalUserPrincipalImpl.class, queryCriteria);
        Iterator result = getPersistenceBrokerTemplate().getIteratorByQuery(query);
        return result;
    }

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