Examples of org.apache.openjpa.kernel.exps.ExpressionParser

org.apache.openjpa.kernel.exps.ExpressionParser
Parser for query languages that will be used by a {@link ExpressionQuery}. A QueryParser is responsible for translating from some string-based query language into {@link Expression}s. Parsers should be stateless. @author Marc Prud'hommeaux @nojavadoc


    /**
     * Construct a distributed query to be executed against all the slices.
     */
    public StoreQuery newQuery(String language) {
        ExpressionParser parser = QueryLanguages.parserForLanguage(language);
        DistributedStoreQuery ret = new DistributedStoreQuery(this, parser);
        for (SliceStoreManager slice : _slices) {
            ret.add(slice.newQuery(language));
        }
        return ret;

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        super.beforeStateChange(sm, fromState, toState);
    }


    @Override
    public StoreQuery newQuery(String language) {
        ExpressionParser ep = QueryLanguages.parserForLanguage(language);
        return new NdbOpenJPAStoreQuery(this, ep);
    }

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                JDBCFetchConfiguration.EAGER_JOIN);
        return paged;
    }


    private StoreQuery newStoreQuery(String language) {
        ExpressionParser ep = QueryLanguages.parserForLanguage(language);
        if (ep != null) { 
            return new JDBCStoreQuery(this, ep);
        }
        if (QueryLanguages.LANG_SQL.equals(language)) {
            return new SQLStoreQuery(this);

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        beginOperation(false);
        try {
            StoreQuery sq = _store.newQuery(lang);
            if (sq == null) {
                ExpressionParser ep = QueryLanguages.parserForLanguage(lang);
                if (ep != null)
                    sq = new ExpressionStoreQuery(ep);
                else if (QueryLanguages.LANG_METHODQL.equals(lang))
                    sq = new MethodStoreQuery();
                else

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            for (SliceStoreManager slice : _slices) {
                ret.add(slice.newQuery(language));
            }
            return ret;
      }
        ExpressionParser parser = QueryLanguages.parserForLanguage(language);
        if (parser == null) {
        throw new UnsupportedOperationException("Language [" + language + "] not supported");
        } 


        DistributedStoreQuery ret = new DistributedStoreQuery(this, parser);

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        beginOperation(false);
        try {
            StoreQuery sq = _store.newQuery(lang);
            if (sq == null) {
                ExpressionParser ep = QueryLanguages.parserForLanguage(lang);
                if (ep != null)
                    sq = new ExpressionStoreQuery(ep);
                else if (QueryLanguages.LANG_METHODQL.equals(lang))
                    sq = new MethodStoreQuery();
                else

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        beginOperation(false);
        try {
            StoreQuery sq = _store.newQuery(lang);
            if (sq == null) {
                ExpressionParser ep = QueryLanguages.parserForLanguage(lang);
                if (ep != null)
                    sq = new ExpressionStoreQuery(ep);
                else if (QueryLanguages.LANG_METHODQL.equals(lang))
                    sq = new MethodStoreQuery();
                else

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        beginOperation(false);
        try {
            StoreQuery sq = _store.newQuery(lang);
            if (sq == null) {
                ExpressionParser ep = QueryLanguages.parserForLanguage(lang);
                if (ep != null)
                    sq = new ExpressionStoreQuery(ep);
                else if (QueryLanguages.LANG_METHODQL.equals(lang))
                    sq = new MethodStoreQuery();
                else

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                JDBCFetchConfiguration.EAGER_JOIN);
        return paged;
    }


    public StoreQuery newQuery(String language) {
        ExpressionParser ep = QueryLanguages.parserForLanguage(language);
        if (ep != null)
            return new JDBCStoreQuery(this, ep);
        if (QueryLanguages.LANG_SQL.equals(language))
            return new SQLStoreQuery(this);
        if (QueryLanguages.LANG_PREPARED_SQL.equals(language))

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                JDBCFetchConfiguration.EAGER_JOIN);
        return paged;
    }


    public StoreQuery newQuery(String language) {
        ExpressionParser ep = QueryLanguages.parserForLanguage(language);
        if (ep != null)
            return new JDBCStoreQuery(this, ep);
        if (QueryLanguages.LANG_SQL.equals(language))
            return new SQLStoreQuery(this);
        if (QueryLanguages.LANG_PREPARED_SQL.equals(language))

View Full Code Here

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