org.apache.camel.builder
Class BinaryPredicateSupport

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

All Implemented Interfaces:

BinaryPredicate, Predicate

Direct Known Subclasses:

TimeClause

public abstract class BinaryPredicateSupport
extends Object
implements BinaryPredicate

A useful base class for Predicate implementations

Version:

Constructor Summary

protected

BinaryPredicateSupport(Expression left, Expression right)

Method Summary

Expression	getLeft() Gets the left hand side expression
protected abstract String	getOperationText()
String	getOperator() Gets the operator
Expression	getRight() Gets the right hand side expression
boolean	matches(Exchange exchange) Evaluates the predicate on the message exchange and returns true if this exchange matches the predicate
protected abstract boolean	matches(Exchange exchange, Object leftValue, Object rightValue)
String	matchesReturningFailureMessage(Exchange exchange) Evaluates the predicate on the message exchange and returns null if this exchange matches the predicate.
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

BinaryPredicateSupport

protected BinaryPredicateSupport(Expression left,
                                 Expression right)

Method Detail

toString

public String toString()

Overrides:

toString in class Object

matches

public boolean matches(Exchange exchange)

Description copied from interface: Predicate

Evaluates the predicate on the message exchange and returns true if this exchange matches the predicate

Specified by:

matches in interface Predicate

Parameters:

exchange - the message exchange

Returns:

true if the predicate matches

matchesReturningFailureMessage

public String matchesReturningFailureMessage(Exchange exchange)

Description copied from interface: BinaryPredicate

Evaluates the predicate on the message exchange and returns null if this exchange matches the predicate. If it did not match, then a failure message is returned detailing the reason, which can be used by end users to understand the failure.

Specified by:

matchesReturningFailureMessage in interface BinaryPredicate

Parameters:

exchange - the message exchange

Returns:

null if the predicate matches.

matches

protected abstract boolean matches(Exchange exchange,
                                   Object leftValue,
                                   Object rightValue)

getOperationText

protected abstract String getOperationText()

getLeft

public Expression getLeft()

Description copied from interface: BinaryPredicate

Gets the left hand side expression

Specified by:

getLeft in interface BinaryPredicate

Returns:

the left expression

getRight

public Expression getRight()

Description copied from interface: BinaryPredicate

Gets the right hand side expression

Specified by:

getRight in interface BinaryPredicate

Returns:

the right expression

getOperator

public String getOperator()

Description copied from interface: BinaryPredicate

Gets the operator

Specified by:

getOperator in interface BinaryPredicate

Returns:

the operator text