Package org.apache.openjpa.jdbc.meta

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

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    /**
     * Parse embedded info for the given mapping.
     */
    private void parseEmbeddedMapping(FieldMapping fm, EmbeddedMapping anno) {
        ClassMapping embed = fm.getEmbeddedMapping();
        if (embed == null)
            throw new MetaDataException(_loc.get("not-embedded", fm));

        FieldMapping efm;
        for (MappingOverride over : anno.overrides()) {
            efm = embed.getFieldMapping(over.name());
            if (efm == null)
                throw new MetaDataException(_loc.get("embed-override-name",
                    fm, over.name()));
            populate(efm, over);
        }
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    }

    @Override
    protected void endClassMapping(ClassMetaData meta)
        throws SAXException {
        ClassMapping cm = (ClassMapping) meta;
        if (_schema != null)
            cm.getMappingInfo().setSchemaName(_schema);

        if (_supJoinCols != null)
            cm.getMappingInfo().setColumns(_supJoinCols);

        if (_discCol != null) {
            DiscriminatorMappingInfo dinfo = cm.getDiscriminator()
                    .getMappingInfo();
            switch (_discType) {
                case CHAR:
                    _discCol.setJavaType(JavaTypes.CHAR);
                    cm.getDiscriminator().setJavaType(JavaTypes.CHAR);
                    break;
                case INTEGER:
                    _discCol.setJavaType(JavaTypes.INT);
                    cm.getDiscriminator().setJavaType(JavaTypes.INT);
                    break;
                default:
                    _discCol.setJavaType(JavaTypes.STRING);
                    cm.getDiscriminator().setJavaType(JavaTypes.STRING);
                    break;
            }
            dinfo.setColumns(Arrays.asList(new Column[]{ _discCol }));
        }
        clearClassInfo();
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    /**
     * Set the secondary table information back to the owning class mapping.
     */
    private void endSecondaryTable() {
        ClassMapping cm = (ClassMapping) currentElement();
        ClassMappingInfo info = cm.getMappingInfo();
        info.setSecondaryTableJoinColumns(_secondaryTable, _joinCols);
        clearSecondaryTableInfo();
    }
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    private boolean startInheritance(Attributes attrs) {
        String val = attrs.getValue("strategy");
        if (val == null)
            return true;

        ClassMapping cm = (ClassMapping) currentElement();
        ClassMappingInfo info = cm.getMappingInfo();
        switch (Enum.valueOf(InheritanceType.class, val)) {
            case SINGLE_TABLE:
                info.setHierarchyStrategy(FlatClassStrategy.ALIAS);
                break;
            case JOINED:
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    private void endDiscriminatorValue() {
        String val = currentText();
        if (StringUtils.isEmpty(val))
            return;

        ClassMapping cm = (ClassMapping) currentElement();
        cm.getDiscriminator().getMappingInfo().setValue(val);

        if (Modifier.isAbstract(cm.getDescribedType().getModifiers())
                && getLog().isInfoEnabled()) {
            getLog().info(
                    _loc.get("discriminator-on-abstract-class", cm
                            .getDescribedType().getName()));
        }
    }
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    /**
     * Return the proper override.
     */
    private FieldMapping getAttributeOverride(FieldMapping fm)
        throws SAXException {
        ClassMapping embed = fm.getEmbeddedMapping();
        if (embed == null)
            throw getException(_loc.get("not-embedded", fm));

        FieldMapping efm = embed.getFieldMapping(_override);
        if (efm == null)
            throw getException(_loc.get("embed-override-name",
                fm, _override));
        return efm;
    }
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    }

    @Override
    public Object getStrategy(Version vers, boolean adapt) {
        Object strat = super.getStrategy(vers, adapt);
        ClassMapping cls = vers.getClassMapping();
        if (strat != null || cls.getJoinablePCSuperclassMapping() != null
            || cls.getVersionField() != null)
            return strat;

        if (vers.getMappingInfo().getColumns().isEmpty())
            return NoneVersionStrategy.getInstance();
        return new NumberVersionStrategy();
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    }

    @Override
    public Object getStrategy(Discriminator disc, boolean adapt) {
        Object strat = super.getStrategy(disc, adapt);
        ClassMapping cls = disc.getClassMapping();
        if (strat != null || cls.getJoinablePCSuperclassMapping() != null
            || disc.getMappingInfo().getValue() != null)
            return strat;

        // don't use a column-based discriminator approach unless user has set
        // a column explicitly or is using flat inheritance explicitly
        if (!disc.getMappingInfo().getColumns().isEmpty())
            return new ValueMapDiscriminatorStrategy();

        ClassMapping base = cls;
        while (base.getMappingInfo().getHierarchyStrategy() == null
            && base.getPCSuperclassMapping() != null)
            base = base.getPCSuperclassMapping();

        strat = base.getMappingInfo().getHierarchyStrategy();
        if (FlatClassStrategy.ALIAS.equals(strat))
            return new ValueMapDiscriminatorStrategy();
        if (VerticalClassStrategy.ALIAS.equals(strat)
            && dict.joinSyntax != JoinSyntaxes.SYNTAX_TRADITIONAL)
            return new SubclassJoinDiscriminatorStrategy();
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        String name = fm.getDefiningMapping().getTable().getName() + "_";

        // if this is an assocation table, spec says to suffix with table of
        // the related type. spec doesn't cover other cases; we're going to
        // suffix with the field name
        ClassMapping rel = fm.getElementMapping().getTypeMapping();
        boolean assoc = rel != null && rel.getTable() != null
            && fm.getTypeCode() != JavaTypes.MAP;
        if (assoc)
            name += rel.getTable().getName();
        else
            name += fm.getName();
        return name.replace('$', '_');
    }
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        ParamExpState pstate = (ParamExpState) state;
        if (other != null && !_container) {
            pstate.sqlValue = other.toDataStoreValue(sel, ctx, otherState, val);
            pstate.otherLength = other.length(sel, ctx, otherState);
        } else if (ImplHelper.isManageable(val)) {
            ClassMapping mapping = ctx.store.getConfiguration().
                getMappingRepositoryInstance().getMapping(val.getClass(),
                ctx.store.getContext().getClassLoader(), true);
            pstate.sqlValue = mapping.toDataStoreValue(val,
                mapping.getPrimaryKeyColumns(), ctx.store);
            pstate.otherLength = mapping.getPrimaryKeyColumns().length;
        } else
            pstate.sqlValue = val;
    }
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