org.apache.iotdb.tsfile.utils

Class StringContainer

java.lang.Object

org.apache.iotdb.tsfile.utils.StringContainer

public class StringContainer
extends Object

this class is used to concatenate Strings effectively.It contains a StringBuilder and initialize it until toString is called. Note:it's not thread safety

Constructor Summary

Constructors

Constructor and Description
StringContainer() defines the constructor function for the class.
StringContainer(String joinSeparator) defines the constructor function for the class.
StringContainer(String[] strings)
StringContainer(String[] strings, String joinSeparator)

Method Summary

Modifier and Type	Method and Description
StringContainer	addHead(String... strings) add a Strings array from this container's header. strings:"a","b","c", StringContainer this:["d","e","f"], result:this:["a","b","c","d","e","f"],
StringContainer	addHead(StringContainer myContainer) add a StringContainer from this container's header. StringContainer m:["a","b","c"], StringContainer this:["d","e","f"], result:this:["a","b","c","d","e","f"],
StringContainer	addTail(Object... objs) add a objects array at this container's tail.
StringContainer	addTail(String... strings) add a Strings array at this container's tail. strings:"a","b","c", StringContainer this:["d","e","f"], result:this:["d","e","f","a","b","c"],
StringContainer	addTail(StringContainer myContainer) add a StringContainer at this container's tail. param StringContainer:["a","b","c"], this StringContainer :["d","e","f"], result:this:["d","e","f","a","b","c"],
StringContainer	clone()
boolean	equals(Object sc)
boolean	equals(StringContainer sc) judge whether the param is equal to this container.
List<String>	getReverseList()
List<String>	getSequenceList()
String	getSubString(int index) return a sub-string in this container. e.g.
StringContainer	getSubStringContainer(int start, int end) /** return a sub-container consist of several continuous strings in this container.If start <= end, return a empty container e.g.
int	hashCode()
String	join(String separator) for all string in rev and seq, concat them with separator and return String.
int	length()
int	size()
String	toString()

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

StringContainer

public StringContainer()

defines the constructor function for the class.

StringContainer

public StringContainer(String joinSeparator)

defines the constructor function for the class.

StringContainer

public StringContainer(String[] strings)

StringContainer

public StringContainer(String[] strings,
                       String joinSeparator)

Method Detail

size

public int size()

length

public int length()

getSequenceList

public List<String> getSequenceList()

getReverseList

public List<String> getReverseList()

addTail

public StringContainer addTail(Object... objs)

add a objects array at this container's tail.

Parameters:

objs - -to be added

Returns:

another string contains objs as tail

addTail

public StringContainer addTail(String... strings)

add a Strings array at this container's tail.
strings:"a","b","c",
StringContainer this:["d","e","f"],
result:this:["d","e","f","a","b","c"],

Parameters:

strings - - to be added

Returns:

- this object

addTail

public StringContainer addTail(StringContainer myContainer)

add a StringContainer at this container's tail.
param StringContainer:["a","b","c"],
this StringContainer :["d","e","f"],
result:this:["d","e","f","a","b","c"],

Parameters:

myContainer - - to be added

Returns:

- this object

addHead

public StringContainer addHead(String... strings)

add a Strings array from this container's header.
strings:"a","b","c",
StringContainer this:["d","e","f"],
result:this:["a","b","c","d","e","f"],

Parameters:

strings - - to be added

Returns:

- this object

addHead

public StringContainer addHead(StringContainer myContainer)

add a StringContainer from this container's header.
StringContainer m:["a","b","c"],
StringContainer this:["d","e","f"],
result:this:["a","b","c","d","e","f"],

Parameters:

myContainer - - given StringContainer to be add in head

Returns:

- this object

toString

public String toString()

Overrides:

toString in class Object

join

public String join(String separator)

for all string in rev and seq, concat them with separator and return String.

Parameters:

separator - separator of string

Returns:

- result joined in type of String with parameter

getSubString

public String getSubString(int index)

return a sub-string in this container.
e.g. this container is ["aa","bbb","cc","d","ee"]; this.getSubString(0) = "a"; this.getSubString(2) ="c";this.getSubString(-1) = "ee";

Parameters:

index - - the index of wanted sub-string

Returns:

- substring result

getSubStringContainer

public StringContainer getSubStringContainer(int start,
                                             int end)

/** return a sub-container consist of several continuous strings in this container.If start <= end, return a empty container e.g. this container is ["aa","bbb","cc","d","ee"]; this.getSubString(0,0) = ["aa"]
this.getSubString(1,3) = ["bbb","cc","d"]
this.getSubString(1,-1) = ["bbb","cc","d", "ee"]

Parameters:

start - - the start index of wanted sub-string

end - - the end index of wanted sub-string

Returns:

- substring result

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object sc)

Overrides:

equals in class Object

equals

public boolean equals(StringContainer sc)

judge whether the param is equal to this container.

Parameters:

sc - -StringContainer Object to judge whether the object is equal to this container

Returns:

boolean value to judge whether is equal

clone

public StringContainer clone()

Overrides:

clone in class Object