Examples of org.apache.openjpa.jdbc.meta.Joinable

org.apache.openjpa.jdbc.meta.Joinable
Represents a value that can be joined to. Any column that a user joins to must be "owned" by an entity that implements this interface. The system maps columns to joinables to be able to decompose oids and field values into individual join values on a per-column basis. This allows us to support joins to only some of the columns of a mapping, and to be loose with the ordering of foreign key columns relative to the ordering of the joined-to columns. Having a separate interface for joinables also allows us to perform tricks such as a vertically-mapped application identity subclass transparently transforming columns of its foreign key to the corresponding primary key fields in the base class. @author Abe White

        Object[] pks = null;
        if (mapping.getIdentityType() == ClassMapping.ID_APPLICATION)
            pks = ApplicationIds.toPKValues(oid, mapping);


        SQLBuffer buf = new SQLBuffer(_dict);
        Joinable join;
        Object val;
        int count = 0;
        for (int i = 0; i < toCols.length; i++, count++) {
            if (pks == null)
                val = (oid == null) ? null : Numbers.valueOf(((Id) oid).getId());
            else {
                // must be app identity; use pk index to get correct pk value
                join = mapping.assertJoinable(toCols[i]);
                val = pks[mapping.getField(join.getFieldIndex()).
                    getPrimaryKeyIndex()];
                val = join.getJoinValue(val, toCols[i], store);
            }


            if (count > 0)
                buf.append(" AND ");
            buf.append(getColumnAlias(fromCols[i], pj));

View Full Code Here

        col = field.getForeignKey().getPrimaryKeyColumn(col);
        if (col == null)
            throw new InternalException();


        ClassMapping relmapping = field.getTypeMapping();
        Joinable j = field.getTypeMapping().assertJoinable(col);
        if (ImplHelper.isManageable(fieldVal))
            fieldVal = store.getContext().getObjectId(fieldVal);
        if (fieldVal instanceof OpenJPAId)
            fieldVal = ((OpenJPAId) fieldVal).getIdObject();
        else if (relmapping.getObjectIdType() != null
            && relmapping.getObjectIdType().isInstance(fieldVal)) {
            Object[] pks = ApplicationIds.toPKValues(fieldVal, relmapping);
            fieldVal = pks[relmapping.getField(j.getFieldIndex()).
                getPrimaryKeyIndex()];
        }
        return j.getJoinValue(fieldVal, col, store);
    }

View Full Code Here

        }
        if (set && !canSetAny(io, fromCols.length, false))
            return;


        ClassMapping toMapping = (ClassMapping) to.getMetaData();
        Joinable join;
        Object val;
        for (int i = 0; i < toCols.length; i++) {
            // don't even translate join value if unsettable
            if (set) {
                if (_action == ACTION_INSERT && fromCols[i].isAutoAssigned())
                    continue;
                if (!canSet(io, i, false))
                    continue;
            }


            join = toMapping.assertJoinable(toCols[i]);
            val = join.getJoinValue(to, toCols[i], (JDBCStore) to.
                getContext().getStoreManager().getInnermostDelegate());
            if (set && val == null) {
                if (canSet(io, i, true))
                    setNull(fromCols[i]);
            } else if (set && val instanceof Raw)

View Full Code Here

        boolean relationId = RelationStrategies.isRelationId(fromCols); 
        if (!relationId && mapping.getIdentityType() == ClassMapping.ID_APPLICATION)
            pks = ApplicationIds.toPKValues(oid, mapping);


        SQLBuffer buf = new SQLBuffer(_dict);
        Joinable join;
        Object val;
        int count = 0;
        for (int i = 0; i < toCols.length; i++, count++) {
            if (pks == null) {
                val = (oid == null) ? null : relationId ? oid : ((Id) oid).getId();
            } else {
                // must be app identity; use pk index to get correct pk value
                join = mapping.assertJoinable(toCols[i]);
                val = pks[mapping.getField(join.getFieldIndex()).
                    getPrimaryKeyIndex()];
                val = join.getJoinValue(val, toCols[i], store);
            }


            if (count > 0)
                buf.append(" AND ");
            buf.append(getColumnAlias(fromCols[i], pj));

View Full Code Here

        return fetch.hasFetchGroup(FetchGroup.NAME_DEFAULT);
    }
    
    private boolean checkResult(FieldMapping fm, Result res) {
        if (fm.getStrategy() instanceof Joinable) {
            Joinable strat = (Joinable)fm.getStrategy();
            Column[] cols = strat.getColumns();
            for (Column col : cols) {
                try {
                    if (res.contains(col)) {
                        return true;
                    }

View Full Code Here

        }
        if (set && !canSetAny(io, fromCols.length, false))
            return;


        ClassMapping toMapping = (ClassMapping) to.getMetaData();
        Joinable join;
        Object val;
        for (int i = 0; i < toCols.length; i++) {
            // don't even translate join value if unsettable
            if (set) {
                if (_action == ACTION_INSERT && fromCols[i].isAutoAssigned())
                    continue;
                if (!canSet(io, i, false))
                    continue;
            }


            join = toMapping.assertJoinable(toCols[i]);
            if (oid != null)
                val = join.getJoinValue(oid, toCols[i], (JDBCStore) to.
                    getContext().getStoreManager().getInnermostDelegate());
            else
                val = join.getJoinValue(to, toCols[i], (JDBCStore) to.
                    getContext().getStoreManager().getInnermostDelegate());


            if (set && val == null) {
                if (canSet(io, i, true))
                    setNull(fromCols[i]);

View Full Code Here

        boolean relationId = RelationStrategies.isRelationId(fromCols); 
        if (!relationId && mapping.getIdentityType() == ClassMapping.ID_APPLICATION)
            pks = ApplicationIds.toPKValues(oid, mapping);


        SQLBuffer buf = new SQLBuffer(_dict);
        Joinable join;
        Object val;
        int count = 0;
        for (int i = 0; i < toCols.length; i++, count++) {
            if (pks == null) {
                val = (oid == null) ? null : relationId ? oid : ((Id) oid).getId();
            } else {
                // must be app identity; use pk index to get correct pk value
                join = mapping.assertJoinable(toCols[i]);
                val = pks[mapping.getField(join.getFieldIndex()).
                    getPrimaryKeyIndex()];
                val = join.getJoinValue(val, toCols[i], store);
            }


            if (count > 0)
                buf.append(" AND ");
            buf.append(getColumnAlias(fromCols[i], pj));

View Full Code Here

        col = field.getForeignKey().getPrimaryKeyColumn(col);
        if (col == null)
            throw new InternalException();


        ClassMapping relmapping = field.getTypeMapping();
        Joinable j = field.getTypeMapping().assertJoinable(col);
        if (ImplHelper.isManageable(fieldVal))
            fieldVal = store.getContext().getObjectId(fieldVal);
        if (fieldVal instanceof OpenJPAId)
            fieldVal = ((OpenJPAId) fieldVal).getIdObject();
        if (relmapping.getObjectIdType() != null
            && relmapping.getObjectIdType().isInstance(fieldVal)) {
            Object[] pks = ApplicationIds.toPKValues(fieldVal, relmapping);
            fieldVal = pks[relmapping.getField(j.getFieldIndex()).
                getPrimaryKeyIndex()];
        }
        return j.getJoinValue(fieldVal, col, store);
    }

View Full Code Here

      boolean collectParmValueOnly = (parmList != null ? true : false);
        Object[] pks = null;
        if (mapping.getIdentityType() == ClassMapping.ID_APPLICATION)
            pks = ApplicationIds.toPKValues(oid, mapping);


        Joinable join;
        Object val;
        int count = 0;
        for (int i = 0; i < toCols.length; i++, count++) {
            if (pks == null)
                val = (oid == null) ? null : Numbers.valueOf(((Id) oid).getId());
            else {
                // must be app identity; use pk index to get correct pk value
                join = mapping.assertJoinable(toCols[i]);
                val = pks[mapping.getField(join.getFieldIndex()).
                    getPrimaryKeyIndex()];
                val = join.getJoinValue(val, toCols[i], store);
                if (parmList != null)
                  parmList.add(val);
            }
            
            if (collectParmValueOnly)

View Full Code Here

        boolean relationId = RelationStrategies.isRelationId(fromCols); 
        if (!relationId && mapping.getIdentityType() == ClassMapping.ID_APPLICATION)
            pks = ApplicationIds.toPKValues(oid, mapping);


        SQLBuffer buf = new SQLBuffer(_dict);
        Joinable join;
        Object val;
        int count = 0;
        for (int i = 0; i < toCols.length; i++, count++) {
            if (pks == null) {
                val = (oid == null) ? null : relationId ? oid : ((Id) oid).getId();
            } else {
                // must be app identity; use pk index to get correct pk value
                join = mapping.assertJoinable(toCols[i]);
                val = pks[mapping.getField(join.getFieldIndex()).
                    getPrimaryKeyIndex()];
                val = join.getJoinValue(val, toCols[i], store);
            }


            if (count > 0)
                buf.append(" AND ");
            buf.append(getColumnAlias(fromCols[i], pj));

View Full Code Here

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org.apache.openjpa.jdbc.sql.RowImpl

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