Examples of org.hsqldb.lib.HashSet

org.hsqldb.lib.HashSet
This class does not store null keys. @author Fred Toussi (fredt@users dot sourceforge.net) @version 1.9.0 @since 1.7.2

        int rowCount = navigator.getSize();


        navigator.beforeFirst();


        if (table.fkMainConstraints.length > 0) {
            HashSet path = session.sessionContext.getConstraintPath();


            for (int i = 0; i < rowCount; i++) {
                navigator.next();


                Row row = navigator.getCurrentRow();


                performReferentialActions(session, table, navigator, row,
                                          null, null, path);
                path.clear();
            }


            navigator.beforeFirst();
        }

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        final int ifree_pos        = 7;


        //
        DataFileCache cache = null;
        Object[]      row;
        HashSet       cacheSet;
        Iterator      caches;
        Iterator      tables;
        Table         table;
        int           iFreeBytes;
        int           iLargestFreeItem;
        long          lSmallestFreeItem;


        // Initialization
        cacheSet = new HashSet();


        // dynamic system tables are never cached
        tables =
            database.schemaManager.databaseObjectIterator(SchemaObject.TABLE);


        while (tables.hasNext()) {
            table = (Table) tables.next();


            PersistentStore currentStore = table.getRowStore(session);


            if (session.getGrantee().isFullyAccessibleByRole(
                    table.getName())) {
                if (currentStore != null) {
                    cache = currentStore.getCache();
                }


                if (cache != null) {
                    cacheSet.add(cache);
                }
            }
        }


        caches = cacheSet.iterator();


        // Do it.
        while (caches.hasNext()) {
            cache = (DataFileCache) caches.next();
            row   = t.getEmptyRowData();

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        }
    }


    public Set getUserDefinedPropertyData() {


        Set      set = new HashSet();
        Iterator it  = dbMeta.values().iterator();


        while (it.hasNext()) {
            Object[] row = (Object[]) it.next();


            if (((Integer) row[HsqlProperties.indexType]).intValue()
                    == SQL_PROPERTY) {
                set.add(row);
            }
        }


        return set;
    }

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            addOrDropPrimaryKey(null, false);
            table.removeConstraint(name);
        } else if (ctype == Constraint.FOREIGN_KEY) {
            dropFKConstraint(c);
        } else if (ctype == Constraint.UNIQUE) {
            HashSet cset = new HashSet();


            cset.add(c);


            // throw if the index for unique constraint is shared
            table.checkDropIndex(c.getMainIndex().getName().name, cset,
                                 false);

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    /**
     * Gets direct and nested roles.
     */
    public HashSet getAllRoles() {


        HashSet newSet = new HashSet();


        addGranteeAndRoles(newSet);


        // Since we added "Grantee" in addition to Roles, need to remove self.
        newSet.remove(granteeName);


        return newSet;
    }

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        return getAllRoles().contains(role);
    }


    public String allRolesString() {


        HashSet allRoles = getAllRoles();


        if (allRoles.size() < 1) {
            return null;
        }


        Iterator     it = getAllRoles().iterator();
        StringBuffer sb = new StringBuffer();

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        int             right;
        Iterator        i;


        rights = rightsMap;


        HashSet out = getGrantedClassNamesDirect();


        if (andToPublic && pubGrantee != null) {
            rights = pubGrantee.rightsMap;
            i      = rights.keySet().iterator();


            while (i.hasNext()) {
                key = i.next();


                if (key instanceof String) {
                    right = rights.get(key, 0);


                    if (right == GranteeManager.ALL) {
                        out.add(key);
                    }
                }
            }
        }


        Iterator it = getAllRoles().iterator();


        while (it.hasNext()) {
            out.addAll(
                ((Grantee) granteeManager.getRole(
                    (String) it.next())).getGrantedClassNamesDirect());
        }


        return out;

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     *
     */
    HashSet getGrantedClassNamesDirect() throws HsqlException {


        IntValueHashMap rights;
        HashSet         out;
        Object          key;
        int             right;
        Iterator        i;


        rights = rightsMap;
        out    = new HashSet();
        i      = rightsMap.keySet().iterator();


        while (i.hasNext()) {
            key = i.next();


            if (key instanceof String) {
                right = rights.get(key, 0);


                if (right == GranteeManager.ALL) {
                    out.add(key);
                }
            }
        }


        return out;

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        this.setType = setType;
        this.type    = type;


        if (isDistinct) {
            this.isDistinct = true;
            distinctValues  = new HashSet();
        }


        if (setType == Expression.VAR_SAMP
                || setType == Expression.STDDEV_SAMP) {
            this.sample = true;

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     */
    public static String[] listLocalInetAddressNames() {


        InetAddress   addr;
        InetAddress[] addrs;
        HashSet       set;


        set = new HashSet();


        try {
            addr  = InetAddress.getLocalHost();
            addrs = InetAddress.getAllByName(addr.getHostAddress());


            for (int i = 0; i < addrs.length; i++) {
                set.add(addrs[i].getHostAddress());
                set.add(addrs[i].getHostName());
            }


            addrs = InetAddress.getAllByName(addr.getHostName());


            for (int i = 0; i < addrs.length; i++) {
                set.add(addrs[i].getHostAddress());
                set.add(addrs[i].getHostName());
            }
        } catch (Exception e) {}


        try {
            addr  = InetAddress.getByName(null);
            addrs = InetAddress.getAllByName(addr.getHostAddress());


            for (int i = 0; i < addrs.length; i++) {
                set.add(addrs[i].getHostAddress());
                set.add(addrs[i].getHostName());
            }


            addrs = InetAddress.getAllByName(addr.getHostName());


            for (int i = 0; i < addrs.length; i++) {
                set.add(addrs[i].getHostAddress());
                set.add(addrs[i].getHostName());
            }
        } catch (Exception e) {}


        try {
            set.add(InetAddress.getByName("loopback").getHostAddress());
            set.add(InetAddress.getByName("loopback").getHostName());
        } catch (Exception e) {}


        return (String[]) set.toArray(new String[set.size()]);
    }

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