Examples of org.jboss.as.cmp.jdbc.bridge.JDBCEntityBridge$EntityState$MaskFieldIterator

org.jboss.as.cmp.jdbc.bridge.JDBCEntityBridge
JDBCEntityBridge follows the Bridge pattern [Gamma et. al, 1995]. The main job of this class is to construct the bridge from entity meta data.
Life-cycle: Undefined. Should be tied to CMPStoreManager.
Multiplicity: One per cmp entity bean type. @author Dain Sundstrom @author Alex Loubyansky @author Heiko W. Rupp @version $Revision: 81030 $

    }


    public static final void leftJoinCMRNodes(String alias, List<LeftJoinCMRNode> onFindCMRNodes, AliasManager aliasManager, StringBuffer sb) {
        for (LeftJoinCMRNode node : onFindCMRNodes) {
            JDBCCMRFieldBridge cmrField = node.cmrField;
            JDBCEntityBridge relatedEntity = cmrField.getRelatedJDBCEntity();
            String relatedAlias = aliasManager.getAlias(node.path);


            JDBCRelationMetaData relation = cmrField.getMetaData().getRelationMetaData();
            if (relation.isTableMappingStyle()) {
                String relTableAlias = aliasManager.getRelationTableAlias(node.path);
                sb.append(" LEFT OUTER JOIN ")
                        .append(cmrField.getQualifiedTableName())
                        .append(' ')
                        .append(relTableAlias)
                        .append(" ON ");
                SQLUtil.getRelationTableJoinClause(cmrField, alias, relTableAlias, sb);


                sb.append(" LEFT OUTER JOIN ")
                        .append(relatedEntity.getQualifiedTableName())
                        .append(' ')
                        .append(relatedAlias)
                        .append(" ON ");
                SQLUtil.getRelationTableJoinClause(cmrField.getRelatedCMRField(), relatedAlias, relTableAlias, sb);
            } else {
                // foreign key mapping style
                sb.append(" LEFT OUTER JOIN ")
                        .append(relatedEntity.getQualifiedTableName())
                        .append(' ')
                        .append(relatedAlias)
                        .append(" ON ");
                SQLUtil.getJoinClause(cmrField,
                        alias,

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    public static final void appendLeftJoinCMRColumnNames(List<LeftJoinCMRNode> onFindCMRNodes,
                                                          AliasManager aliasManager,
                                                          StringBuffer sb) {
        for (LeftJoinCMRNode node : onFindCMRNodes) {
            JDBCCMRFieldBridge cmrField = node.cmrField;
            JDBCEntityBridge relatedEntity = cmrField.getRelatedJDBCEntity();
            String childAlias = aliasManager.getAlias(node.path);


            // primary key fields
            SQLUtil.appendColumnNamesClause(relatedEntity.getPrimaryKeyFields(),
                    childAlias,
                    sb);


            // eager load group
            if (node.eagerLoadMask != null) {
                SQLUtil.appendColumnNamesClause(relatedEntity.getTableFields(),
                        node.eagerLoadMask,
                        childAlias,
                        sb);
            }

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    private static int loadOnFindCMRFields(Object pk, List<LeftJoinCMRNode> onFindCMRNodes, ResultSet rs, int index, Logger log) {
        Object[] ref = new Object[1];
        for (LeftJoinCMRNode node : onFindCMRNodes) {
            JDBCCMRFieldBridge cmrField = node.cmrField;
            ReadAheadCache myCache = cmrField.getJDBCStoreManager().getReadAheadCache();
            JDBCEntityBridge relatedEntity = cmrField.getRelatedJDBCEntity();
            ReadAheadCache relatedCache = cmrField.getRelatedManager().getReadAheadCache();


            // load related id
            ref[0] = null;
            index = relatedEntity.loadPrimaryKeyResults(rs, index, ref);
            Object relatedId = ref[0];
            boolean cacheRelatedData = relatedId != null;


            if (pk != null) {
                if (cmrField.getMetaData().getRelatedRole().isMultiplicityOne()) {
                    // cacheRelatedData the value
                    myCache.addPreloadData(pk,
                            cmrField,
                            relatedId == null ? Collections.EMPTY_LIST : Collections.singletonList(relatedId));
                } else {
                    Collection<Object> cachedValue = myCache.getCachedCMRValue(pk, cmrField);
                    if (cachedValue == null) {
                        cachedValue = new ArrayList<Object>();
                        myCache.addPreloadData(pk, cmrField, cachedValue);
                    }


                    if (relatedId != null) {
                        if (cachedValue.contains(relatedId)) {
                            cacheRelatedData = false;
                        } else {
                            cachedValue.add(relatedId);
                        }
                    }
                }
            }


            // load eager load group
            if (node.eagerLoadMask != null) {
                JDBCFieldBridge[] tableFields = relatedEntity.getTableFields();
                for (int fieldInd = 0; fieldInd < tableFields.length; ++fieldInd) {
                    if (node.eagerLoadMask[fieldInd]) {
                        JDBCFieldBridge field = tableFields[fieldInd];
                        ref[0] = null;
                        index = field.loadArgumentResults(rs, index, ref);


                        if (cacheRelatedData) {
                            if (log.isTraceEnabled()) {
                                log.trace("Caching " +
                                        relatedEntity.getEntityName() +
                                        '[' +
                                        relatedId +
                                        "]." +
                                        field.getFieldName() + "=" + ref[0]);
                            }

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    public JDBCFindByPrimaryKeyQuery(JDBCStoreManager manager, JDBCQueryMetaData q) {
        super(manager, q);
        this.manager = manager;
        rowLocking = manager.getMetaData().hasRowLocking();


        JDBCEntityBridge entity = (JDBCEntityBridge) manager.getEntityBridge();


        JDBCTypeMappingMetaData typeMapping = this.manager.getJDBCTypeFactory().getTypeMapping();
        AliasManager aliasManager = new AliasManager(
                typeMapping.getAliasHeaderPrefix(),
                typeMapping.getAliasHeaderSuffix(),
                typeMapping.getAliasMaxLength()
        );


        String alias = aliasManager.getAlias(entity.getEntityName());


        StringBuffer select = new StringBuffer(200);
        SQLUtil.getColumnNamesClause(entity.getPrimaryKeyFields(), alias, select);


        StringBuffer from = new StringBuffer();
        from.append(entity.getQualifiedTableName())
                .append(' ')
                .append(alias);


        // set the preload fields
        JDBCReadAheadMetaData readAhead = q.getReadAhead();
        if (readAhead.isOnFind()) {
            setEagerLoadGroup(readAhead.getEagerLoadGroup());
            if (getEagerLoadMask() != null) {
                SQLUtil.appendColumnNamesClause(entity.getTableFields(), getEagerLoadMask(), alias, select);


                List<LeftJoinCMRNode> onFindCMRList = JDBCAbstractQueryCommand.getLeftJoinCMRNodes(
                        entity, entity.getQualifiedTableName(), readAhead.getLeftJoins(), null);


                if (!onFindCMRList.isEmpty()) {
                    setOnFindCMRList(onFindCMRList);
                    JDBCAbstractQueryCommand.leftJoinCMRNodes(alias, onFindCMRList, aliasManager, from);
                    JDBCAbstractQueryCommand.appendLeftJoinCMRColumnNames(onFindCMRList, aliasManager, select);
                }
            }
        }


        StringBuffer where = new StringBuffer();
        SQLUtil.getWhereClause(entity.getPrimaryKeyFields(), alias, where);


        // generate the sql
        StringBuffer sql = new StringBuffer(300);
        if (rowLocking && readAhead.isOnFind() && getEagerLoadMask() != null) {
            JDBCFunctionMappingMetaData rowLockingTemplate = typeMapping.getRowLockingTemplate();

View Full Code Here


            cmrField.removeRelation(ctx, relatedId);


            return null;
        } else if (CMRMessage.SCHEDULE_FOR_CASCADE_DELETE == relationshipMessage) {
            JDBCEntityBridge entity = (JDBCEntityBridge) cmrField.getEntity();
            entity.scheduleForCascadeDelete(ctx);
            return null;
        } else if (CMRMessage.SCHEDULE_FOR_BATCH_CASCADE_DELETE == relationshipMessage) {
            JDBCEntityBridge entity = (JDBCEntityBridge) cmrField.getEntity();
            entity.scheduleForBatchCascadeDelete(ctx);
            return null;
        } else {
            // this should not be possible we are using a type safe enum
            throw new EJBException("Unknown cmp2.0-relationship-message=" + relationshipMessage);
        }

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        if (not) {
            buf.append(SQLUtil.NOT).append('(');
        }


        String fromAlias;
        JDBCEntityBridge fromEntity;
        ASTPath fromPath = (ASTPath) fromNode;
        addJoinPath(fromPath);
        fromAlias = aliasManager.getAlias(fromPath.getPath());
        fromEntity = (JDBCEntityBridge) fromPath.getEntity();


        if (toNode instanceof ASTParameter) {
            ASTParameter toParam = (ASTParameter) toNode;


            // can only compare like kind entities
            verifyParameterEntityType(toParam.number, fromEntity);


            inputParameters.addAll(QueryParameter.createParameters(toParam.number - 1, fromEntity));


            SQLUtil.getWhereClause(fromEntity.getPrimaryKeyFields(), fromAlias, buf);
        } else {
            String toAlias;
            JDBCEntityBridge toEntity;
            ASTPath toPath = (ASTPath) toNode;
            addJoinPath(toPath);
            toAlias = aliasManager.getAlias(toPath.getPath());
            toEntity = (JDBCEntityBridge) toPath.getEntity();


            // can only compare like kind entities
            if (!fromEntity.equals(toEntity)) {
                throw new IllegalStateException("Only like types can be " +
                        "compared: from entity=" +
                        fromEntity.getEntityName() +
                        " to entity=" + toEntity.getEntityName());
            }


            SQLUtil.getSelfCompareWhereClause(fromEntity.getPrimaryKeyFields(), fromAlias, toAlias, buf);
        }

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            forceDistinct = true;


            addJoinPath(path);


            if (cmrField.getRelationMetaData().isForeignKeyMappingStyle()) {
                JDBCEntityBridge childEntity = (JDBCEntityBridge) cmrField.getRelatedEntity();
                String childAlias = aliasManager.getAlias(path.getPath());
                SQLUtil.getIsNullClause(!not, childEntity.getPrimaryKeyFields(), childAlias, buf);
            } else {
                String relationTableAlias = aliasManager.getRelationTableAlias(path.getPath());
                SQLUtil.getIsNullClause(!not, cmrField.getTableKeyFields(), relationTableAlias, buf);
            }
            return;
        }


        if (not) {
            buf.append(SQLUtil.NOT);
        }
        buf.append(SQLUtil.EXISTS).append('(');


        if (cmrField.getRelationMetaData().isForeignKeyMappingStyle()) {
            JDBCEntityBridge childEntity = (JDBCEntityBridge) cmrField.getRelatedEntity();
            String childAlias = aliasManager.getAlias(path.getPath());


            buf.append(SQLUtil.SELECT);


            SQLUtil.getColumnNamesClause(childEntity.getPrimaryKeyFields(), childAlias, buf)
                    .append(SQLUtil.FROM)
                    .append(childEntity.getQualifiedTableName()).append(' ').append(childAlias)
                    .append(SQLUtil.WHERE);
            SQLUtil.getJoinClause(cmrField, parentAlias, childAlias, buf);
        } else {
            String relationTableAlias = aliasManager.getRelationTableAlias(path.getPath());
            buf.append(SQLUtil.SELECT);

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        if (!path.isCMRField(i) || declaredPaths.contains(path.getPath(i))) {
            return;
        }


        JDBCCMRFieldBridge cmrField = (JDBCCMRFieldBridge) path.getCMRField(i);
        JDBCEntityBridge entity = (JDBCEntityBridge) path.getEntity(i);


        buf.append(SQLUtil.COMMA)
                .append(entity.getQualifiedTableName())
                .append(' ')
                .append(aliasManager.getAlias(path.getPath(i)));
        leftJoins(path.getPath(i), buf);


        if (cmrField.getRelationMetaData().isTableMappingStyle()) {

View Full Code Here


            JDBCCMRFieldBridge cmrField = (JDBCCMRFieldBridge) path.getCMRField();
            String parentAlias = aliasManager.getAlias(parentPath);


            if (cmrField.getRelationMetaData().isForeignKeyMappingStyle()) {
                JDBCEntityBridge childEntity = (JDBCEntityBridge) cmrField.getRelatedEntity();
                String childAlias = aliasManager.getAlias(path.getPath());


                buf.append(SQLUtil.LEFT_JOIN)
                        .append(childEntity.getQualifiedTableName())
                        .append(' ')
                        .append(childAlias)
                        .append(SQLUtil.ON);
                SQLUtil.getJoinClause(cmrField, parentAlias, childAlias, buf);
            } else {

View Full Code Here


        // add this path to the list of declared paths
        declaredPaths.add(path.getPath());


        // get the entity at the end of this path
        JDBCEntityBridge entity = (JDBCEntityBridge) path.getEntity();


        // second arg is the identifier
        ASTIdentifier id = (ASTIdentifier) node.jjtGetChild(1);


        // get the alias
        String alias = aliasManager.getAlias(id.identifier);


        // add this path to the list of join paths so parent paths will be joined
        addCollectionMemberJoinPath(alias, path);


        // declare the alias mapping
        aliasManager.addAlias(path.getPath(), alias);


        buf.append(entity.getQualifiedTableName());
        buf.append(' ');
        buf.append(alias);
        leftJoins(path.getPath(), buf);


        if (onFindCMRJoin != null && alias.equals(selectAlias)) {

View Full Code Here

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