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com.presumo.jms.selector
Class JmsFloatLiteral  

java.lang.Object
  com.presumo.jms.selector.JmsOperand
      com.presumo.jms.selector.JmsDataType
          com.presumo.jms.selector.JmsNumericLiteral
              com.presumo.jms.selector.JmsFloatLiteral

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final class JmsFloatLiteral

extends JmsNumericLiteral

Expression node to represent floating point literals

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Field Summary
private  java.lang.Double	data
private static java.util.Hashtable	instances
protected  java.lang.String	stringRepresentation

 

Fields inherited from class com.presumo.jms.selector.JmsOperand

evalNumber, JMS_BINARY_ADD, JMS_BINARY_AND, JMS_BINARY_DIV, JMS_BINARY_MULT, JMS_BINARY_OR, JMS_BINARY_SUB, JMS_BOOLEAN_LITERAL, JMS_EQUALS, JMS_FLOAT_LITERAL, JMS_GREATER, JMS_IDENTIFIER, JMS_INTEGER_LITERAL, JMS_IS, JMS_LESS, JMS_LIKE, JMS_NOT, JMS_STRING_LITERAL, lastEval, myEvalNumber, parents, refcount

 

Constructor Summary
protected	JmsFloatLiteral(double newValue)           Called by getInstance which controls instance creation.

 

Method Summary
(package private)  JmsNumericLiteral	add(JmsNumericLiteral value)
protected  void	delete(JmsOperand parent)
(package private)  JmsNumericLiteral	div(JmsNumericLiteral value)
(package private)  JmsBooleanLiteral	eq(JmsDataType value)
(package private)  JmsOperand	evaluate(javax.jms.Message msg)           Returns the object represented by this instance.
(package private)  JmsOperand	evaluateOnce(javax.jms.Message msg)           Returns the object represented by this instance.
(package private) static JmsFloatLiteral	getInstance(double newValue)           Psuedo-singleton access point.
(package private)  java.lang.Number	getNumber()
(package private)  short	getType()           Used to identify this object in places where instanceof is inapplicable.
(package private) static JmsFloatLiteral	getUniqueInstance(double newValue)           During evaluation, JmsIdentifier needs to create JmsFloatLiterals.
(package private)  JmsBooleanLiteral	gt(JmsNumericLiteral value)
(package private)  JmsBooleanLiteral	lt(JmsNumericLiteral value)
(package private)  JmsNumericLiteral	mult(JmsNumericLiteral value)
(package private)  JmsNumericLiteral	sub(JmsNumericLiteral value)
java.lang.String	toString()           Convert this Object to a human-readable String.
(package private)  java.lang.String	unParse()           Returns a String representing the SQL form of the filter which is logically equivilant.

 

Methods inherited from class com.presumo.jms.selector.JmsOperand

addParent, addParentRef, allParents, delete, getAllInstances, hasParent, incrementAllRefCounts, incrementRefCount, numberOfParents, printTree, removeParent, resetStoredEvals

 

Methods inherited from class java.lang.Object

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

 

Field Detail

data

private java.lang.Double data

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instances

private static java.util.Hashtable instances

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stringRepresentation

protected java.lang.String stringRepresentation

Constructor Detail

JmsFloatLiteral

protected JmsFloatLiteral(double newValue)

Called by getInstance which controls instance creation.

Method Detail

getInstance

static JmsFloatLiteral getInstance(double newValue)

Psuedo-singleton access point. Only one instance for each long value will ever be created and returned.

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getUniqueInstance

static JmsFloatLiteral getUniqueInstance(double newValue)

During evaluation, JmsIdentifier needs to create JmsFloatLiterals. These literals need not be singletons. This access point returns a non-singleton instance.

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getNumber

java.lang.Number getNumber()

Specified by:

getNumber in class JmsNumericLiteral

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eq

JmsBooleanLiteral eq(JmsDataType value)
               throws SelectorFalseException

Specified by:

eq in class JmsDataType

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lt

JmsBooleanLiteral lt(JmsNumericLiteral value)

Specified by:

lt in class JmsNumericLiteral

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gt

JmsBooleanLiteral gt(JmsNumericLiteral value)

Specified by:

gt in class JmsNumericLiteral

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mult

JmsNumericLiteral mult(JmsNumericLiteral value)

Specified by:

mult in class JmsNumericLiteral

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div

JmsNumericLiteral div(JmsNumericLiteral value)

Specified by:

div in class JmsNumericLiteral

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add

JmsNumericLiteral add(JmsNumericLiteral value)

Specified by:

add in class JmsNumericLiteral

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sub

JmsNumericLiteral sub(JmsNumericLiteral value)

Specified by:

sub in class JmsNumericLiteral

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getType

short getType()

Used to identify this object in places where instanceof is inapplicable.

Specified by:

getType in class JmsOperand

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delete

protected void delete(JmsOperand parent)

Overrides:

delete in class JmsOperand

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toString

public java.lang.String toString()

Description copied from class: java.lang.Object

Convert this Object to a human-readable String. There are no limits placed on how long this String should be or what it should contain. We suggest you make it as intuitive as possible to be able to place it into System.out.println() 55 and such.

It is typical, but not required, to ensure that this method never completes abruptly with a java.lang.RuntimeException.

This method will be called when performing string concatenation with this object. If the result is null, string concatenation will instead use "null".

The default implementation returns getClass().getName() + "@" + Integer.toHexString(hashCode()).

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evaluate

final JmsOperand evaluate(javax.jms.Message msg)
                   throws SelectorFalseException

Returns the object represented by this instance.

Specified by:

evaluate in class JmsOperand

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evaluateOnce

final JmsOperand evaluateOnce(javax.jms.Message msg)
                       throws SelectorFalseException

Returns the object represented by this instance. Saves a method call on something that already has a constant evaluation time.

Overrides:

evaluateOnce in class JmsOperand

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unParse

java.lang.String unParse()

Description copied from class: JmsOperand

Returns a String representing the SQL form of the filter which is logically equivilant.

Specified by:

unParse in class JmsOperand

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Overview  Package   Class  Use  Deprecated  Index
Home >> All >> com >> presumo >> jms >> [ selector overview ]	PREV CLASS  NEXT CLASS
SUMMARY:  JAVADOC |  SOURCE |  DOWNLOAD | NESTED | FIELD | CONSTR | METHOD	DETAIL: FIELD | CONSTR | METHOD

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