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## org.apache.xpath.compiler
Class FunctionTable

    java.lang.Object
      |
      +--org.apache.xpath.compiler.FunctionTable

public class FunctionTable
extends java.lang.Object

The function table for XPath.

Field Summary
`static int` | `FUNC_BOOLEAN` The 'boolean()' id.
`static int` | `FUNC_CEILING` The 'ceiling()' id.
`static int` | `FUNC_CONCAT` The 'concat()' id.
`static int` | `FUNC_CONTAINS` The 'contains()' id.
`static int` | `FUNC_COUNT` The 'count()' id.
`static int` | `FUNC_CURRENT` The 'current()' id.
`static int` | `FUNC_DOCLOCATION` The 'document-location()' id (Proprietary).
`static int` | `FUNC_EXT_ELEM_AVAILABLE` The 'element-available()' id (XSLT).
`static int` | `FUNC_EXT_FUNCTION_AVAILABLE` The 'function-available()' id (XSLT).
`static int` | `FUNC_FALSE` The 'false()' id.
`static int` | `FUNC_FLOOR` The 'floor()' id.
`static int` | `FUNC_GENERATE_ID` The 'generate-id()' id.
`static int` | `FUNC_ID` The 'id()' id.
`static int` | `FUNC_KEY` The 'key()' id (XSLT).
`static int` | `FUNC_LANG` The 'lang()' id.
`static int` | `FUNC_LAST` The 'last()' id.
`static int` | `FUNC_LOCAL_PART` The 'local-name()' id.
`static int` | `FUNC_NAMESPACE` The 'namespace-uri()' id.
`static int` | `FUNC_NORMALIZE_SPACE` The 'normalize-space()' id.
`static int` | `FUNC_NOT` The 'not()' id.
`static int` | `FUNC_NUMBER` The 'number()' id.
`static int` | `FUNC_POSITION` The 'position()' id.
`static int` | `FUNC_QNAME` The 'name()' id.
`static int` | `FUNC_ROUND` The 'round()' id.
`static int` | `FUNC_STARTS_WITH` The 'starts-with()' id.
`static int` | `FUNC_STRING` The 'string()' id.
`static int` | `FUNC_STRING_LENGTH` The 'string-length()' id.
`static int` | `FUNC_SUBSTRING` The 'substring()' id.
`static int` | `FUNC_SUBSTRING_AFTER` The 'substring-after()' id.
`static int` | `FUNC_SUBSTRING_BEFORE` The 'substring-before()' id.
`static int` | `FUNC_SUM` The 'sum()' id.
`static int` | `FUNC_SYSTEM_PROPERTY` The 'system-property()' id.
`static int` | `FUNC_TRANSLATE` The 'translate()' id.
`static int` | `FUNC_TRUE` The 'true()' id.
`static int` | `FUNC_UNPARSED_ENTITY_URI` The 'unparsed-entity-uri()' id (XSLT).

Constructor Summary
`FunctionTable()`

Method Summary
`boolean` | `functionAvailable(java.lang.String methName)` Tell if a built-in, non-namespaced function is available.
`int` | `installFunction(java.lang.String name, java.lang.Class func)` Install a built-in function.

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

Field Detail

### FUNC_CURRENT

    public static final int FUNC_CURRENT

  The 'current()' id.

### FUNC_LAST

    public static final int FUNC_LAST

  The 'last()' id.

### FUNC_POSITION

    public static final int FUNC_POSITION

  The 'position()' id.

### FUNC_COUNT

    public static final int FUNC_COUNT

  The 'count()' id.

### FUNC_ID

    public static final int FUNC_ID

  The 'id()' id.

### FUNC_KEY

    public static final int FUNC_KEY

  The 'key()' id (XSLT).

### FUNC_LOCAL_PART

    public static final int FUNC_LOCAL_PART

  The 'local-name()' id.

### FUNC_NAMESPACE

    public static final int FUNC_NAMESPACE

  The 'namespace-uri()' id.

### FUNC_QNAME

    public static final int FUNC_QNAME

  The 'name()' id.

### FUNC_GENERATE_ID

    public static final int FUNC_GENERATE_ID

  The 'generate-id()' id.

### FUNC_NOT

    public static final int FUNC_NOT

  The 'not()' id.

### FUNC_TRUE

    public static final int FUNC_TRUE

  The 'true()' id.

### FUNC_FALSE

    public static final int FUNC_FALSE

  The 'false()' id.

### FUNC_BOOLEAN

    public static final int FUNC_BOOLEAN

  The 'boolean()' id.

### FUNC_NUMBER

    public static final int FUNC_NUMBER

  The 'number()' id.

### FUNC_FLOOR

    public static final int FUNC_FLOOR

  The 'floor()' id.

### FUNC_CEILING

    public static final int FUNC_CEILING

  The 'ceiling()' id.

### FUNC_ROUND

    public static final int FUNC_ROUND

  The 'round()' id.

### FUNC_SUM

    public static final int FUNC_SUM

  The 'sum()' id.

### FUNC_STRING

    public static final int FUNC_STRING

  The 'string()' id.

### FUNC_STARTS_WITH

    public static final int FUNC_STARTS_WITH

  The 'starts-with()' id.

### FUNC_CONTAINS

    public static final int FUNC_CONTAINS

  The 'contains()' id.

### FUNC_SUBSTRING_BEFORE

    public static final int FUNC_SUBSTRING_BEFORE

  The 'substring-before()' id.

### FUNC_SUBSTRING_AFTER

    public static final int FUNC_SUBSTRING_AFTER

  The 'substring-after()' id.

### FUNC_NORMALIZE_SPACE

    public static final int FUNC_NORMALIZE_SPACE

  The 'normalize-space()' id.

### FUNC_TRANSLATE

    public static final int FUNC_TRANSLATE

  The 'translate()' id.

### FUNC_CONCAT

    public static final int FUNC_CONCAT

  The 'concat()' id.

### FUNC_SUBSTRING

    public static final int FUNC_SUBSTRING

  The 'substring()' id.

### FUNC_STRING_LENGTH

    public static final int FUNC_STRING_LENGTH

  The 'string-length()' id.

### FUNC_SYSTEM_PROPERTY

    public static final int FUNC_SYSTEM_PROPERTY

  The 'system-property()' id.

### FUNC_LANG

    public static final int FUNC_LANG

  The 'lang()' id.

### FUNC_EXT_FUNCTION_AVAILABLE

    public static final int FUNC_EXT_FUNCTION_AVAILABLE

  The 'function-available()' id (XSLT).

### FUNC_EXT_ELEM_AVAILABLE

    public static final int FUNC_EXT_ELEM_AVAILABLE

  The 'element-available()' id (XSLT).

### FUNC_UNPARSED_ENTITY_URI

    public static final int FUNC_UNPARSED_ENTITY_URI

  The 'unparsed-entity-uri()' id (XSLT).

### FUNC_DOCLOCATION

    public static final int FUNC_DOCLOCATION

  The 'document-location()' id (Proprietary).

Constructor Detail

### FunctionTable

    public FunctionTable()

Method Detail

### installFunction

    public int installFunction(java.lang.String name,
                               java.lang.Class func)

  Install a built-in function.
  Parameters:
    `name` - The unqualified name of the function, must not be null
    `func` - A Implementation of an XPath Function object.
  Returns:
    the position of the function in the internal index.

### functionAvailable

    public boolean functionAvailable(java.lang.String methName)

  Tell if a built-in, non-namespaced function is available.
  Parameters:
    `methName` - The local name of the function.
  Returns:
    True if the function can be executed.

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Copyright © 2006 Apache XML Project. All Rights Reserved.