gr.uoa.di.madgik.searchlibrary.operatorlibrary
Class UnaryOp

java.lang.Object
  gr.uoa.di.madgik.searchlibrary.operatorlibrary.UnaryOp

public class UnaryOp
extends Object

Represents and unary operator class that takes single result set as input and returns result set as output

Author:

john.gerbesiotis - DI NKUA

Constructor Summary

UnaryOp(String operatorType, URI inLocator, HashMap<String,String> operatorParameters, StatsContainer stats)

UnaryOp(String operatorType, URI inLocator, HashMap<String,String> operatorParameters, StatsContainer stats, long timeout, TimeUnit timeUnit)

UnaryOp(String operatorType, URI inLocator, Map<String,String> operatorParameters, StatsContainer stats)
Creates a new UnaryOp with the default timeout for the writer

UnaryOp(String operatorType, URI inLocator, Map<String,String> operatorParameters, StatsContainer stats, long timeout, TimeUnit timeUnit)
Creates a new UnaryOp with configurable timeout for the writer

Method Summary

URI	compute() Starts the operator and returns the output locator

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

UnaryOp

public UnaryOp(String operatorType,
               URI inLocator,
               Map<String,String> operatorParameters,
               StatsContainer stats)
        throws Exception

Creates a new UnaryOp with the default timeout for the writer

Parameters:

operatorType - The predefined type of the operator

inLocator - The input locator

operatorParameters - The parameters for the specific operator

stats - statistics

Throws:

Exception

UnaryOp

public UnaryOp(String operatorType,
               URI inLocator,
               HashMap<String,String> operatorParameters,
               StatsContainer stats)
        throws Exception

Throws:

Exception

UnaryOp

public UnaryOp(String operatorType,
               URI inLocator,
               Map<String,String> operatorParameters,
               StatsContainer stats,
               long timeout,
               TimeUnit timeUnit)
        throws Exception

Creates a new UnaryOp with configurable timeout for the writer

Parameters:

operatorType - The predefined type of the operator

inLocator - The input locator

operatorParameters - The parameters for the specific operator

stats - statistics

timeout - The timeout to be used for the writer

timeUnit - The time unit of the timeout used

Throws:

Exception

UnaryOp

public UnaryOp(String operatorType,
               URI inLocator,
               HashMap<String,String> operatorParameters,
               StatsContainer stats,
               long timeout,
               TimeUnit timeUnit)
        throws Exception

Throws:

Exception

Method Detail

compute

public URI compute()
            throws Exception

Starts the operator and returns the output locator

Returns:

the output locator of the operator compute method

Throws:

Exception