+
−package nl.cwi.monetdb.mcl.parser;
+
−
+
−/**
+
− * Created by ferreira on 11/25/16.
+
− */
+
−public abstract class StartOfHeaderParser {
+
−
+
−    /* Query types (copied from sql_query.mx) */
+
−
+
−    /** A parse response (not handled) */
+
−    public final static int Q_PARSE    = '0';
+
−    /** A tabular response (typical ResultSet) */
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−    public final static int Q_TABLE    = '1';
+
−    /** A response to an update statement, contains number of affected
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−     * rows and generated key-id */
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−    public final static int Q_UPDATE   = '2';
+
−    /** A response to a schema update */
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−    public final static int Q_SCHEMA   = '3';
+
−    /** A response to a transaction statement (start, rollback, abort,
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−     * commit) */
+
−    public final static int Q_TRANS    = '4';
+
−    /** A tabular response in response to a PREPARE statement containing
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−     * information about the wildcard values that need to be supplied */
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−    public final static int Q_PREPARE  = '5';
+
−    /** A tabular continuation response (for a ResultSet) */
+
−    public final static int Q_BLOCK    = '6';
+
−    /** An unknown and unsupported response */
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−    public final static int Q_UNKNOWN  =  0;
+
−
+
−    protected int len;
+
−
+
−    protected int pos;
+
−
+
−    public StartOfHeaderParser() {}
+
−
+
−    public abstract int parse(String in) throws MCLParseException;
+
−
+
−    public abstract int getNextAsInt() throws MCLParseException;
+
−
+
−    public abstract String getNextAsString() throws MCLParseException;
+
−
+
−    public final boolean hasNext() {
+
−        return pos < len;
+
−    }
+
−}