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## net.sf.saxon.instruct
Class ParameterSet

    java.lang.Object
      net.sf.saxon.instruct.ParameterSet

    public class ParameterSet

extends java.lang.Object

A ParameterSet is a set of parameters supplied when calling a template. It is a collection of id-value pairs, the ids being numeric aliases for the parameter name, unique within a stylesheet

Field Summary
`static ParameterSet` | `EMPTY_PARAMETER_SET`

Constructor Summary
`ParameterSet()` Create an empty parameter set
`ParameterSet(int capacity)` Create a parameter set specifying the initial capacity
`ParameterSet(ParameterSet existing, int extra)` Create a parameter set as a copy of an existing parameter set

Method Summary
`void` | `clear()` Clear all values
`ValueRepresentation` | `get(int id)` Get a parameter
`void` | `materializeValues()` If any values are non-memo closures, expand them
`void` | `put(int id, ValueRepresentation value)` Add a parameter to the ParameterSet

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

Field Detail

### EMPTY_PARAMETER_SET

    public static ParameterSet EMPTY_PARAMETER_SET

Constructor Detail

### ParameterSet

    public ParameterSet()

  Create an empty parameter set

### ParameterSet

    public ParameterSet(int capacity)

  Create a parameter set specifying the initial capacity

### ParameterSet

    public ParameterSet(ParameterSet existing,
                        int extra)

  Create a parameter set as a copy of an existing parameter set

Method Detail

### put

    public void put(int id,
                    ValueRepresentation value)

  Add a parameter to the ParameterSet

  Parameters:
    `id` - The parameter id, representing its name.
    `value` - The value of the parameter

### get

    public ValueRepresentation get(int id)

  Get a parameter

  Parameters:
    `id` - The numeric parameter id, representing its name.
  Returns:
    The value of the parameter, or null if not defined

### clear

    public void clear()

  Clear all values

### materializeValues

    public void materializeValues()
                           throws XPathException

  If any values are non-memo closures, expand them

  Throws:
    `XPathException`

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Copyright (c) Saxonica Limited. All rights reserved.