org.josql.functions

类 StringFunctions

java.lang.Object

org.josql.functions.AbstractFunctionHandler

org.josql.functions.StringFunctions

所有已实现的接口:

FunctionHandler

public class StringFunctions
extends AbstractFunctionHandler

This class holds functions that operate on strings in some way.

字段概要

字段

限定符和类型	字段和说明
static String	HANDLER_ID

从类继承的字段 org.josql.functions.AbstractFunctionHandler

q

构造器概要

构造器

构造器和说明
StringFunctions()

方法概要

限定符和类型	方法和说明
List	grep(File f, String s)
List	grep(File f, String s, boolean ignoreCase)
double	lastIndexOf(Object o, Object i)
double	length(Object o)
boolean	regexp(Object o, String re)
boolean	regexp(Object o, String re, String instName)
List	rgrep(File f, String regexp)
List	rgrep(File f, String regexp, String instName)
String	subStr(Object o, double f) Return a substring of the passed in object (in a string form).
String	subStr(Object o, double f, double t)
String	trim(Object o, Object v)

从类继承的方法 org.josql.functions.AbstractFunctionHandler

setQuery

从类继承的方法 java.lang.Object

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

字段详细资料

HANDLER_ID

public static final String HANDLER_ID

另请参阅:

常量字段值

构造器详细资料

StringFunctions

public StringFunctions()

方法详细资料

regexp

public boolean regexp(Object o,
                      String re)
               throws QueryExecutionException

抛出:

QueryExecutionException

regexp

public boolean regexp(Object o,
                      String re,
                      String instName)
               throws QueryExecutionException

抛出:

QueryExecutionException

grep

public List grep(File f,
                 String s,
                 boolean ignoreCase)
          throws QueryExecutionException

抛出:

QueryExecutionException

rgrep

public List rgrep(File f,
                  String regexp,
                  String instName)
           throws QueryExecutionException

抛出:

QueryExecutionException

rgrep

public List rgrep(File f,
                  String regexp)
           throws QueryExecutionException

抛出:

QueryExecutionException

grep

public List grep(File f,
                 String s)
          throws QueryExecutionException

抛出:

QueryExecutionException

trim

public String trim(Object o,
                   Object v)

lastIndexOf

public double lastIndexOf(Object o,
                          Object i)

subStr

public String subStr(Object o,
                     double f)

Return a substring of the passed in object (in a string form). See subStr(Object,double,double) for the full details since this is just a thin-wrapper around that method with the t parameter set to -1.

参数:

o - The object to convert to a string and return the substring.

f - The start index. If this is set to 0 then the entire string is returned.

返回:

The substring.

subStr

public String subStr(Object o,
                     double f,
                     double t)

length

public double length(Object o)