com.tangosol.coherence.dslquery.token.persistence.SQLSuspendServiceOPToken Maven / Gradle / Ivy
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/*
* Copyright (c) 2000, 2020, Oracle and/or its affiliates.
*
* Licensed under the Universal Permissive License v 1.0 as shown at
* http://oss.oracle.com/licenses/upl.
*/
package com.tangosol.coherence.dslquery.token.persistence;
import com.tangosol.coherence.dslquery.token.SQLOPToken;
import com.tangosol.coherence.dsltools.precedence.OPException;
import com.tangosol.coherence.dsltools.precedence.OPParser;
import com.tangosol.coherence.dsltools.precedence.OPScanner;
import com.tangosol.coherence.dsltools.termtrees.AtomicTerm;
import com.tangosol.coherence.dsltools.termtrees.Term;
import com.tangosol.coherence.dsltools.termtrees.Terms;
/**
* SQLSuspendServiceOPToken is used for parsing and specifying the AST
* used for suspending services.
*
* Syntax:
*
* SUSPEND SERVICE 'SERVICE-NAME'
*
* @author tam 2014.09.01
* @since 12.2.1
*/
public class SQLSuspendServiceOPToken
extends SQLOPToken
{
// ----- constructors --------------------------------------------------
/**
* Construct a new SQLListServicesOPToken.
*
* @param id the string representing the command
*/
public SQLSuspendServiceOPToken(String id)
{
super(id, IDENTIFIER_NODE);
}
// ----- Operator Precedence API ----------------------------------------
@Override
public Term nud(OPParser p)
{
OPScanner s = p.getScanner();
if (s.advanceWhenMatching("service"))
{
Term termService = Terms.newTerm("service", AtomicTerm.createString(s.getCurrentAsStringWithAdvance()));
return Terms.newTerm(FUNCTOR, termService);
}
else
{
throw new OPException("Expected SERVICE but found " + s.getCurrentAsString());
}
}
// ----- constants ------------------------------------------------------
/**
* The functor name used to represent this node in an AST
*/
public static final String FUNCTOR = "sqlSuspendService";
}