org.apache.camel.builder
Class ValueBuilder

java.lang.Object
  org.apache.camel.builder.ValueBuilder

All Implemented Interfaces:

Expression

Direct Known Subclasses:

AssertionClause.PredicateValueBuilder

public class ValueBuilder
extends Object
implements Expression

A builder of expressions or predicates based on values.

Version:

$Revision: 835970 $

Constructor Summary

ValueBuilder(Expression expression)

Method Summary

ValueBuilder	append(Object value) Appends the string evaluation of this expression with the given value
protected Expression	asExpression(Object value)
Predicate	contains(Object value) Create a predicate that the left hand expression contains the value of the right hand expression
ValueBuilder	convertTo(Class<?> type) Converts the current value to the given type using the registered type converters
ValueBuilder	convertToString() Converts the current value to a String using the registered type converters
Predicate	endsWith(Object value)
<T> T	evaluate(Exchange exchange, Class<T> type) Returns the value of the expression on the given exchange
Expression	getExpression()
Predicate	in(Object... values)
Predicate	in(Predicate... predicates)
Predicate	isEqualTo(Object value)
Predicate	isGreaterThan(Object value)
Predicate	isGreaterThanOrEqualTo(Object value)
Predicate	isInstanceOf(Class<?> type)
Predicate	isLessThan(Object value)
Predicate	isLessThanOrEqualTo(Object value)
Predicate	isNotEqualTo(Object value)
Predicate	isNotNull()
Predicate	isNull()
Predicate	matches(Expression expression)
Predicate	not(Predicate predicate)
protected Predicate	onNewPredicate(Predicate predicate) A strategy method to allow derived classes to deal with the newly created predicate in different ways
ValueBuilder	prepend(Object value) Prepends the string evaluation of this expression with the given value
Predicate	regex(String regex) Creates a predicate which is true if this expression matches the given regular expression
ValueBuilder	regexReplaceAll(String regex, Expression replacement) Replaces all occurrences of the regular expression with the given replacement
ValueBuilder	regexReplaceAll(String regex, String replacement) Replaces all occurrences of the regular expression with the given replacement
ValueBuilder	regexTokenize(String regex) Tokenizes the string conversion of this expression using the given regular expression
ValueBuilder	sort(Comparator<?> comparator) Sorts the current value using the given comparator.
Predicate	startsWith(Object value)
ValueBuilder	tokenize()
ValueBuilder	tokenize(String token)
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

ValueBuilder

public ValueBuilder(Expression expression)

Method Detail

evaluate

public <T> T evaluate(Exchange exchange,
                      Class<T> type)

Description copied from interface: Expression

Returns the value of the expression on the given exchange

Specified by:

evaluate in interface Expression

Parameters:

exchange - the message exchange on which to evaluate the expression

type - the expected type of the evaluation result

Returns:

the value of the expression

getExpression

public Expression getExpression()

toString

public String toString()

Overrides:

toString in class Object

matches

public Predicate matches(Expression expression)

isNotEqualTo

public Predicate isNotEqualTo(Object value)

isEqualTo

public Predicate isEqualTo(Object value)

isLessThan

public Predicate isLessThan(Object value)

isLessThanOrEqualTo

public Predicate isLessThanOrEqualTo(Object value)

isGreaterThan

public Predicate isGreaterThan(Object value)

isGreaterThanOrEqualTo

public Predicate isGreaterThanOrEqualTo(Object value)

isInstanceOf

public Predicate isInstanceOf(Class<?> type)

isNull

public Predicate isNull()

isNotNull

public Predicate isNotNull()

not

public Predicate not(Predicate predicate)

in

public Predicate in(Object... values)

in

public Predicate in(Predicate... predicates)

startsWith

public Predicate startsWith(Object value)

endsWith

public Predicate endsWith(Object value)

contains

public Predicate contains(Object value)

Create a predicate that the left hand expression contains the value of the right hand expression

Parameters:

value - the element which is compared to be contained within this expression

Returns:

a predicate which evaluates to true if the given value expression is contained within this expression value

regex

public Predicate regex(String regex)

Creates a predicate which is true if this expression matches the given regular expression

Parameters:

regex - the regular expression to match

Returns:

a predicate which evaluates to true if the expression matches the regex

tokenize

public ValueBuilder tokenize()

tokenize

public ValueBuilder tokenize(String token)

regexTokenize

public ValueBuilder regexTokenize(String regex)

Tokenizes the string conversion of this expression using the given regular expression

regexReplaceAll

public ValueBuilder regexReplaceAll(String regex,
                                    String replacement)

Replaces all occurrences of the regular expression with the given replacement

regexReplaceAll

public ValueBuilder regexReplaceAll(String regex,
                                    Expression replacement)

Replaces all occurrences of the regular expression with the given replacement

convertTo

public ValueBuilder convertTo(Class<?> type)

Converts the current value to the given type using the registered type converters

Parameters:

type - the type to convert the value to

Returns:

the current builder

convertToString

public ValueBuilder convertToString()

Converts the current value to a String using the registered type converters

Returns:

the current builder

append

public ValueBuilder append(Object value)

Appends the string evaluation of this expression with the given value

Parameters:

value - the value or expression to append

Returns:

the current builder

prepend

public ValueBuilder prepend(Object value)

Prepends the string evaluation of this expression with the given value

Parameters:

value - the value or expression to prepend

Returns:

the current builder

sort

public ValueBuilder sort(Comparator<?> comparator)

Sorts the current value using the given comparator. The current value must be convertable to a List to allow sorting using the comparator.

Parameters:

comparator - the comparator used by sorting

Returns:

the current builder

onNewPredicate

protected Predicate onNewPredicate(Predicate predicate)

A strategy method to allow derived classes to deal with the newly created predicate in different ways

asExpression

protected Expression asExpression(Object value)