Examples of org.apache.openjpa.jdbc.sql.DBDictionary.assertSupport()

Class org.apache.openjpa.jdbc.sql.DBDictionary

Examples of org.apache.openjpa.jdbc.sql.DBDictionary.assertSupport()

org.apache.openjpa.jdbc.sql.DBDictionary.assertSupport()
Assert that the given dictionary flag is true. If it is not true, throw an error saying that the given setting needs to return true for the current operation to work.

    public void appendTo(Select sel, ExpContext ctx, ExpState state, 
        SQLBuffer buf, int index) {


        DBDictionary dict = ctx.store.getDBDictionary();
        String func = dict.toUpperCaseFunction;
        dict.assertSupport(func != null, "ToUpperCaseFunction");
        if (getValue() instanceof PCPath) {
            func = dict.getCastFunction(getValue(), func, ((PCPath) getValue()).getFieldMapping(state).getColumns()[0]);
        } else {
            func = dict.getCastFunction(getValue(), func);
        }

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        SQLBuffer sql, int index) {
        DBDictionary dict = ctx.store.getDBDictionary();
        String func;
        if (_where == null) {
            func = dict.trimBothFunction;
            dict.assertSupport(func != null, "TrimBothFunction");
        } else if (_where.booleanValue()) {
            func = dict.trimLeadingFunction;
            dict.assertSupport(func != null, "TrimLeadingFunction");
        } else {
            func = dict.trimTrailingFunction;

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        if (_where == null) {
            func = dict.trimBothFunction;
            dict.assertSupport(func != null, "TrimBothFunction");
        } else if (_where.booleanValue()) {
            func = dict.trimLeadingFunction;
            dict.assertSupport(func != null, "TrimLeadingFunction");
        } else {
            func = dict.trimTrailingFunction;
            dict.assertSupport(func != null, "TrimTrailingFunction");
        }        
        func = dict.getCastFunction(_val, func);

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        } else if (_where.booleanValue()) {
            func = dict.trimLeadingFunction;
            dict.assertSupport(func != null, "TrimLeadingFunction");
        } else {
            func = dict.trimTrailingFunction;
            dict.assertSupport(func != null, "TrimTrailingFunction");
        }        
        func = dict.getCastFunction(_val, func);
        
        int fromPart = func.indexOf("{0}");
        int charPart = func.indexOf("{1}");

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            // where to specify the trim char (denoted by "{1}"),
            // we do not have the ability to trim off non-whitespace
            // characters; throw an exception when we attempt to do so
            if (!(_trimChar instanceof Const) || String.valueOf(((Const) 
                _trimChar).getValue(ctx,tstate.charState)).trim().length() != 0)
                dict.assertSupport(false, "TrimNonWhitespaceCharacters");
        }
    }


    public void acceptVisit(ExpressionVisitor visitor) {
        visitor.enter(this);

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    protected abstract ForeignKey getJoinForeignKey();


    public void appendSize(SQLBuffer sql, Select sel, Joins joins) {
        DBDictionary dict = field.getMappingRepository().getDBDictionary();
        dict.assertSupport(dict.supportsSubselect, "SupportsSubselect");


        ClassMapping[] ind = getIndependentElementMappings(false);
        if (ind != null && ind.length > 1)
            throw RelationStrategies.unjoinable(field);

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    }


    public void appendTo(Select sel, ExpContext ctx, ExpState state, 
        SQLBuffer buf) {
        DBDictionary dict = ctx.store.getDBDictionary();
        dict.assertSupport(dict.supportsSubselect, "SupportsSubselect");


        Select sub = ctx.store.getSQLFactory().newSelect();
        sub.setParent(sel, null);
        // this subselect has the same context as its parent
        sub.setContext(sel.ctx());

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     * for this relation.
     */
    private void testInverseNull(SQLBuffer sql, Select sel, Joins joins,
        boolean empty) {
        DBDictionary dict = field.getMappingRepository().getDBDictionary();
        dict.assertSupport(dict.supportsSubselect, "SupportsSubselect");


        if (field.getIndependentTypeMappings().length != 1)
            throw RelationStrategies.uninversable(field);


        if (empty)

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                boolean candidate = ProjectionExpressionVisitor.
                    hasCandidateProjections(exps.projections);
                if (agg || (candidate 
                    && (exps.distinct & exps.DISTINCT_TRUE) == 0)) {
                    DBDictionary dict = ctx.store.getDBDictionary();
                    dict.assertSupport(dict.supportsSubselect,
                        "SupportsSubselect");


                    Select inner = sel;
                    sel = ctx.store.getSQLFactory().newSelect();
                    sel.setParent(parent, alias);

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                post = func.substring(idx + 3);
            }


            // if we can't use LIKE, we have to take the substring of the
            // first value and compare it to the second
            dict.assertSupport(pre != null, "StringLengthFunction");
            dict.substring(buf,
                new FilterValueImpl(sel, ctx, bstate.state1, _val1),
                new ZeroFilterValue(sel, state),
                new StringLengthFilterValue(sel, ctx, bstate.state2, pre,post));
            buf.append(" = ");

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