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org.progeeks.meta
Class ContainerPropertyType  

java.lang.Object
  org.progeeks.meta.ClassPropertyType
      org.progeeks.meta.ContainerPropertyType

All Implemented Interfaces:

PropertyType

Direct Known Subclasses:

ListPropertyType

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public class ContainerPropertyType

extends ClassPropertyType

This represents a property type that is a container for objects of another type.

Version:

$Revision: 1.3 $

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Field Summary
private  PropertyType	valueType           The type of values contained in the list.

 

Fields inherited from class org.progeeks.meta.ClassPropertyType

 

Constructor Summary

ContainerPropertyType(java.lang.Class baseClass, PropertyType valueType)           Creates a ContainerPropertyType representing a container with values of the specified valueType.

ContainerPropertyType(PropertyType valueType)           Creates a ContainerPropertyType representing a container with values of the specified valueType.

 

Method Summary
boolean	equals(ContainerPropertyType type)
boolean	equals(java.lang.Object obj)           Determine whether this Object is semantically equal to another Object.
PropertyType	getValueType()           Returns the type of values contained within lists of this type.
int	hashCode()           Get a value that represents this Object, as uniquely as possible within the confines of an int.
ContainerPropertyType	replaceContainedType(PropertyType valueType)           Clones this container property type and replaces the value type with the type specified.
java.lang.String	toString()           Convert this Object to a human-readable String.

 

Methods inherited from class org.progeeks.meta.ClassPropertyType

convertPrimitive, getBaseClass, isInstance

 

Methods inherited from class java.lang.Object

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

 

Field Detail

valueType

private PropertyType valueType

The type of values contained in the list.

Constructor Detail

ContainerPropertyType

public ContainerPropertyType(PropertyType valueType)

Creates a ContainerPropertyType representing a container with values of the specified valueType. The base type will be of type Collection.

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ContainerPropertyType

public ContainerPropertyType(java.lang.Class baseClass,
                             PropertyType valueType)

Creates a ContainerPropertyType representing a container with values of the specified valueType. The base type will be of the specified type.

Method Detail

replaceContainedType

public ContainerPropertyType replaceContainedType(PropertyType valueType)

Clones this container property type and replaces the value type with the type specified. Subclasses should implement this to provide the correct ContainerPropertyType implementation.

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getValueType

public PropertyType getValueType()

Returns the type of values contained within lists of this type.

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equals

public boolean equals(ContainerPropertyType type)

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equals

public boolean equals(java.lang.Object obj)

Description copied from class: java.lang.Object

Determine whether this Object is semantically equal to another Object.

There are some fairly strict requirements on this method which subclasses must follow:

• It must be transitive. If a.equals(b) and b.equals(c), then a.equals(c) must be true as well.
• It must be symmetric. a.equals(b) and b.equals(a) must have the same value.
• It must be reflexive. a.equals(a) must always be true.
• It must be consistent. Whichever value a.equals(b) returns on the first invocation must be the value returned on all later invocations.
• a.equals(null) must be false.
• It must be consistent with hashCode(). That is, a.equals(b) must imply a.hashCode() == b.hashCode(). The reverse is not true; two objects that are not equal may have the same hashcode, but that has the potential to harm hashing performance.

This is typically overridden to throw a java.lang.ClassCastException if the argument is not comparable to the class performing the comparison, but that is not a requirement. It is legal for a.equals(b) to be true even though a.getClass() != b.getClass(). Also, it is typical to never cause a java.lang.NullPointerException.

In general, the Collections API (java.util) use the equals method rather than the == operator to compare objects. However, java.util.IdentityHashMap is an exception to this rule, for its own good reasons.

The default implementation returns this == o.

Overrides:

equals in class ClassPropertyType

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hashCode

public int hashCode()

Description copied from class: java.lang.Object

Get a value that represents this Object, as uniquely as possible within the confines of an int.

There are some requirements on this method which subclasses must follow:

• Semantic equality implies identical hashcodes. In other words, if a.equals(b) is true, then a.hashCode() == b.hashCode() must be as well. However, the reverse is not necessarily true, and two objects may have the same hashcode without being equal.
• It must be consistent. Whichever value o.hashCode() returns on the first invocation must be the value returned on all later invocations as long as the object exists. Notice, however, that the result of hashCode may change between separate executions of a Virtual Machine, because it is not invoked on the same object.

Notice that since hashCode is used in java.util.Hashtable and other hashing classes, a poor implementation will degrade the performance of hashing (so don't blindly implement it as returning a constant!). Also, if calculating the hash is time-consuming, a class may consider caching the results.

The default implementation returns System.identityHashCode(this)

Overrides:

hashCode in class ClassPropertyType

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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()).

Overrides:

toString in class ClassPropertyType

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