gr.uoa.di.madgik.searchlibrary.operatorlibrary.select

Class Binder

java.lang.Object

gr.uoa.di.madgik.searchlibrary.operatorlibrary.select.Binder

public class Binder
extends Object

Given some bindings as an input, replaces all references within a logical expression string that match a particular pattern.

Author:

john.gerbesiotis - DI NKUA

Constructor Summary

Constructors

Constructor and Description
Binder(String expr) Constructor
Binder(String expr, String pattern) Constructor

Method Summary

Modifier and Type	Method and Description
Set<String>	getSubstitutions()
String	substitute(Map<String,String> bindings)

Methods inherited from class java.lang.Object

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

Constructor Detail

Binder

public Binder(String expr)

Constructor

Parameters:

expr - The expression to be evaluated.

Binder

public Binder(String expr,
              String pattern)

Constructor

Parameters:

expr - The expression to be evaluated.

pattern - The pattern to be matched (e.g. [(\d+)])

Method Detail

getSubstitutions

public Set<String> getSubstitutions()

Returns:

A set of references that must be substituted.

substitute

public String substitute(Map<String,String> bindings)

Parameters:

bindings - The bindings between the references and the actual values that will take their place.

Returns:

The string after substitutions.