org.apache.ambari.server.api.predicate

Class PredicateCompiler

java.lang.Object

org.apache.ambari.server.api.predicate.PredicateCompiler

public class PredicateCompiler
extends Object

Compiler which takes a query expression as input and produces a predicate instance as output.

Constructor Summary

Constructors

Constructor and Description
PredicateCompiler()

Method Summary

Modifier and Type	Method and Description
Predicate	compile(String exp) Generate a predicate from a query expression.
Predicate	compile(String exp, Collection<String> ignoredProperties) Generate a predicate from a query expression.

Methods inherited from class java.lang.Object

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

Constructor Detail

PredicateCompiler

public PredicateCompiler()

Method Detail

compile

public Predicate compile(String exp)
                  throws InvalidQueryException

Generate a predicate from a query expression.

Parameters:

exp - query expression

Returns:

a predicate instance

Throws:

InvalidQueryException - if unable to compile the expression

compile

public Predicate compile(String exp,
                         Collection<String> ignoredProperties)
                  throws InvalidQueryException

Generate a predicate from a query expression.

Parameters:

exp - query expression

ignoredProperties - collection of property names to ignore

Returns:

a predicate instance

Throws:

InvalidQueryException - if unable to compile the expression