org.apache.cxf.jaxrs.ext.search
Class FiqlParser<T>

java.lang.Object
  org.apache.cxf.jaxrs.ext.search.FiqlParser<T>

Type Parameters:

T - type of search condition.

public class FiqlParser<T>
extends Object

Parses FIQL expression to construct SearchCondition structure. Since this class operates on Java type T, not on XML structures "selectors" part of specification is not applicable; instead selectors describes getters of type T used as search condition type (see SimpleSearchCondition.isMet(Object) for details.

Field Summary

static String	AND
static String	EQ
static String	GE
static String	GT
static String	LE
static String	LT
static String	NEQ
static String	OR

Constructor Summary

FiqlParser(Class<T> tclass)
Creates FIQL parser.

Method Summary

SearchCondition<T>

parse(String fiqlExpression) Parses expression and builds search filter.

Methods inherited from class java.lang.Object

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

Field Detail

OR

public static final String OR

See Also:

Constant Field Values

AND

public static final String AND

See Also:

Constant Field Values

GT

public static final String GT

See Also:

Constant Field Values

GE

public static final String GE

See Also:

Constant Field Values

LT

public static final String LT

See Also:

Constant Field Values

LE

public static final String LE

See Also:

Constant Field Values

EQ

public static final String EQ

See Also:

Constant Field Values

NEQ

public static final String NEQ

See Also:

Constant Field Values

Constructor Detail

FiqlParser

public FiqlParser(Class<T> tclass)

Creates FIQL parser.

Parameters:

tclass - - class of T used to create condition objects in built syntax tree. Class T must have accessible no-arg constructor and complementary setters to these used in FIQL expressions.

Method Detail

parse

public SearchCondition<T> parse(String fiqlExpression)
                         throws FiqlParseException

Parses expression and builds search filter. Names used in FIQL expression are names of getters/setters in type T.

Example:

 class Condition {
   public String getFoo() {...}
   public void setFoo(String foo) {...}
   public int getBar() {...}
   public void setBar(int bar) {...}
 }
 
 FiqlParser<Condition> parser = new FiqlParser<Condition>(Condition.class);
 parser.parse("foo==mystery*;bar=ge=10");
 

Parameters:

fiqlExpression - expression of filter.

Returns:

tree of SearchCondition objects representing runtime search structure.

Throws:

FiqlParseException - when expression does not follow FIQL grammar