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## net.sf.saxon.value
Class ObjectValue

    java.lang.Object
      net.sf.saxon.value.Value
          net.sf.saxon.value.AtomicValue
              net.sf.saxon.value.ObjectValue

All Implemented Interfaces:
  Expression, Item, java.io.Serializable, ValueRepresentation

Direct Known Subclasses:
  FirstClassFunction, UserFunctionCall.FunctionCallPackage, ValidationErrorValue

public class ObjectValue
extends AtomicValue

An XPath value that encapsulates a Java object. Such a value can only be obtained by calling an extension function that returns it.

See Also:
  Serialized Form

Field Summary

Fields inherited from class net.sf.saxon.value.Value
`EMPTY_CLASS_ARRAY`

Fields inherited from interface net.sf.saxon.om.ValueRepresentation
`EMPTY_VALUE_ARRAY`

Fields inherited from interface net.sf.saxon.expr.Expression
`EVALUATE_METHOD, ITERATE_METHOD, PROCESS_METHOD`

Constructor Summary
`ObjectValue()` Default constructor for use in subclasses
`ObjectValue(java.lang.Object object)` Constructor

Method Summary
`AtomicValue` | `convertPrimitive(BuiltInAtomicType requiredType, boolean validate, XPathContext context)` Convert to target data type
`java.lang.Object` | `convertToJava(java.lang.Class target, XPathContext context)` Convert to Java object (for passing to external functions)
`boolean` | `effectiveBooleanValue(XPathContext context)` Get the effective boolean value of the value
`boolean` | `equals(java.lang.Object other)` Determine if two ObjectValues are equal
`ItemType` | `getItemType(TypeHierarchy th)` Determine the data type of the expression
`java.lang.Object` | `getObject()` Get the encapsulated object
`java.lang.String` | `getStringValue()` Get the value as a String
`int` | `hashCode()` Return a hash code to support the equals() function
`void` | `setValue(java.lang.Object value)` Set the value in this object value

Methods inherited from class net.sf.saxon.value.AtomicValue
`checkPermittedContents, convert, convert, display, evaluateAsString, evaluateItem, getCardinality, getComponent, getImplementationMethod, getLength, getPrimitiveValue, getStringValueCS, getTypedValue, hasBuiltInType, iterate, process, schemaEquals, toString`

Methods inherited from class net.sf.saxon.value.Value
`asItem, asIterator, asValue, collapseWhitespace, convert, convertJavaObjectToXPath, getDependencies, getIterator, getParentExpression, getSpecialProperties, itemAt, iterateSubExpressions, makeQNameValue, normalizeWhitespace, optimize, promote, reduce, simplify, stringToNumber, trimWhitespace, typeCheck`

Methods inherited from class java.lang.Object
`clone, finalize, getClass, notify, notifyAll, wait, wait, wait`

Constructor Detail

### ObjectValue

    public ObjectValue()

  Default constructor for use in subclasses

### ObjectValue

    public ObjectValue(java.lang.Object object)

  Constructor

Parameters:
  `object` - the object to be encapsulated

Method Detail

### setValue

    public void setValue(java.lang.Object value)

  Set the value in this object value

### convertPrimitive

    public AtomicValue convertPrimitive(BuiltInAtomicType requiredType,
                                        boolean validate,
                                        XPathContext context)

  Convert to target data type

  Specified by:
    `convertPrimitive` in class `AtomicValue`
  Parameters:
    `requiredType` - type code of the required atomic type
    `validate` - true if validation is required. If set to false, the caller guarantees that the value is valid for the target data type, and that further validation is therefore not required. Note that a validation failure may be reported even if validation was not requested.
    `context` - The conversion context to be used. This is required at present only when converting to a date or time: it provides the implicit timezone.
  Returns:
    the result of the conversion, if successful. If unsuccessful, the value returned will be an ErrorValue. The caller must check for this condition. No exception is thrown, instead the exception will be encapsulated within the ErrorValue.

### getStringValue

    public java.lang.String getStringValue()

  Get the value as a String

  Specified by:
    `getStringValue` in interface `Item`
  Specified by:
    `getStringValue` in class `AtomicValue`
  Returns:
    a String representation of the value

### effectiveBooleanValue

    public boolean effectiveBooleanValue(XPathContext context)
                                  throws XPathException

  Get the effective boolean value of the value

  Specified by:
    `effectiveBooleanValue` in interface `Expression`
  Overrides:
    `effectiveBooleanValue` in class `AtomicValue`
  Parameters:
    `context` - the evaluation context (not used in this implementation)
  Returns:
    true, unless the value is boolean false, numeric zero, or zero-length string
  Throws:
    `XPathException`

### getItemType

    public ItemType getItemType(TypeHierarchy th)

  Determine the data type of the expression

  Specified by:
    `getItemType` in interface `Expression`
  Overrides:
    `getItemType` in class `Value`
  Parameters:
    `th` -
  Returns:
    Type.OBJECT

### getObject

    public java.lang.Object getObject()

  Get the encapsulated object

### equals

    public boolean equals(java.lang.Object other)

  Determine if two ObjectValues are equal

  Overrides:
    `equals` in class `Value`
  Throws:
    `java.lang.ClassCastException` - if they are not comparable

### hashCode

    public int hashCode()

  Description copied from class: `Value`
  Return a hash code to support the equals() function

  Overrides:
    `hashCode` in class `Value`

### convertToJava

    public java.lang.Object convertToJava(java.lang.Class target,
                                          XPathContext context)
                                   throws XPathException

  Convert to Java object (for passing to external functions)

  Overrides:
    `convertToJava` in class `Value`
  Throws:
    `XPathException`

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