com.fasterxml.jackson.dataformat.yaml.util

Class StringQuotingChecker

java.lang.Object

com.fasterxml.jackson.dataformat.yaml.util.StringQuotingChecker

All Implemented Interfaces:

Serializable

Direct Known Subclasses:

StringQuotingChecker.Default

public abstract class StringQuotingChecker
extends Object
implements Serializable

Helper class that defines API used by YAMLGenerator to check whether property names and String values need to be quoted or not. Also contains default logic implementation; may be sub-classes to provide alternate implementation.

Since:

2.12

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	StringQuotingChecker.Default Default StringQuotingChecker implementation used unless custom implementation registered.

Constructor Summary

Constructors

Constructor and Description
StringQuotingChecker()

Method Summary

Modifier and Type	Method and Description
protected boolean	_isReservedKeyword(int firstChar, String name)
protected boolean	_looksLikeYAMLNumber(int firstChar, String name)
protected boolean	isReservedKeyword(String value) Helper method that sub-classes may use to see if given String value is one of: YAML 1.1 keyword representing boolean YAML 1.1 keyword representing null value empty String (length 0) and returns true if so.
protected boolean	looksLikeYAMLNumber(String name) Helper method that sub-classes may use to see if given String value looks like a YAML 1.1 numeric value and would likely be considered a number when parsing unless quoting is used.
protected boolean	nameHasQuotableChar(String inputStr) Looks like we may get names with "funny characters" so.
abstract boolean	needToQuoteName(String name) Method called by YAMLGenerator to check whether given property name should be quoted: usually to prevent it from being read as non-String key (boolean or number)
abstract boolean	needToQuoteValue(String value) Method called by YAMLGenerator to check whether given String value should be quoted: usually to prevent it from being value of different type (boolean or number).
protected boolean	valueHasQuotableChar(String inputStr) As per YAML Plain Styleunquoted strings are restricted to a reduced charset and must be quoted in case they contain one of the following characters or character combinations.

Methods inherited from class java.lang.Object

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

Constructor Detail

StringQuotingChecker

public StringQuotingChecker()

Method Detail

needToQuoteName

public abstract boolean needToQuoteName(String name)

Method called by YAMLGenerator to check whether given property name should be quoted: usually to prevent it from being read as non-String key (boolean or number)

needToQuoteValue

public abstract boolean needToQuoteValue(String value)

Method called by YAMLGenerator to check whether given String value should be quoted: usually to prevent it from being value of different type (boolean or number).

isReservedKeyword

protected boolean isReservedKeyword(String value)

Helper method that sub-classes may use to see if given String value is one of:

• YAML 1.1 keyword representing boolean
• YAML 1.1 keyword representing null value
• empty String (length 0)
and returns true if so.

Parameters:

value - String to check

Returns:

true if given value is a Boolean or Null representation (as per YAML 1.1 specification) or empty String

_isReservedKeyword

protected boolean _isReservedKeyword(int firstChar,
                                     String name)

looksLikeYAMLNumber

protected boolean looksLikeYAMLNumber(String name)

Helper method that sub-classes may use to see if given String value looks like a YAML 1.1 numeric value and would likely be considered a number when parsing unless quoting is used.

_looksLikeYAMLNumber

protected boolean _looksLikeYAMLNumber(int firstChar,
                                       String name)

valueHasQuotableChar

protected boolean valueHasQuotableChar(String inputStr)

As per YAML Plain Styleunquoted strings are restricted to a reduced charset and must be quoted in case they contain one of the following characters or character combinations.

nameHasQuotableChar

protected boolean nameHasQuotableChar(String inputStr)

Looks like we may get names with "funny characters" so.

Since:

2.13.2