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java.lang.Object | +--org.apache.xpath.compiler.OpCodes
Operations codes for XPath. Code for the descriptions of the operations codes: [UPPER CASE] indicates a literal value, [lower case] is a description of a value, ([length] always indicates the length of the operation, including the operations code and the length integer.) {UPPER CASE} indicates the given production, {description} is the description of a new production, (For instance, {boolean expression} means some expression that should be resolved to a boolean.) * means that it occurs zero or more times, + means that it occurs one or more times, ? means that it is optional. returns: indicates what the production should return.
| Field Summary | |
static int |
AXES_END_TYPES
The end of the axes types. |
static int |
AXES_START_TYPES
**For advanced use only** [FROM_stepType] [length, including predicates] [length of just the step, without the predicates] {node test} {predicates}? returns: XBoolean |
static int |
ELEMWILDCARD
**For advanced use only** [ELEMWILDCARD] Means ELEMWILDCARD ("*"), used instead of string index in some places. |
static int |
EMPTY
[EMPTY] Empty slot to indicate NULL. |
static int |
ENDOP
**For advanced use only** [ENDOP] Some operators may like to have a terminator. |
static int |
FROM_ANCESTORS
ancestor axes opcode. |
static int |
FROM_ANCESTORS_OR_SELF
ancestor-or-self axes opcode. |
static int |
FROM_ATTRIBUTES
attribute axes opcode. |
static int |
FROM_CHILDREN
children axes opcode. |
static int |
FROM_DESCENDANTS
descendants axes opcode. |
static int |
FROM_DESCENDANTS_OR_SELF
descendants-of-self axes opcode. |
static int |
FROM_FOLLOWING
following axes opcode. |
static int |
FROM_FOLLOWING_SIBLINGS
following-siblings axes opcode. |
static int |
FROM_NAMESPACE
namespace axes opcode. |
static int |
FROM_PARENT
parent axes opcode. |
static int |
FROM_PRECEDING
preceding axes opcode. |
static int |
FROM_PRECEDING_SIBLINGS
preceding-sibling axes opcode. |
static int |
FROM_ROOT
'/' axes opcode. |
static int |
FROM_SELF
self axes opcode. |
static int |
MATCH_ANY_ANCESTOR
**For advanced use only** For match patterns. |
static int |
MATCH_ATTRIBUTE
**For advanced use only** For match patterns. |
static int |
MATCH_IMMEDIATE_ANCESTOR
**For advanced use only** For match patterns. |
static int |
NODENAME
**For advanced use only** [NODENAME] [index to ns token or EMPTY] [index to name token] returns: XBoolean |
static int |
NODETYPE_ANYELEMENT
**For advanced use only** [NODETYPE_ANY] No size or arguments. |
static int |
NODETYPE_COMMENT
**For advanced use only** [NODETYPE_COMMENT] No size or arguments. |
static int |
NODETYPE_FUNCTEST
**For advanced use only** [NODETYPE_ANY] No size or arguments. |
static int |
NODETYPE_NODE
**For advanced use only** [NODETYPE_NODE] No size or arguments. |
static int |
NODETYPE_PI
**For advanced use only** [NODETYPE_PI] [index to token] Note: must not overlap function OP number! returns: XBoolean |
static int |
NODETYPE_ROOT
**For advanced use only** [NODETYPE_ROOT] No size or arguments. |
static int |
NODETYPE_TEXT
**For advanced use only** [NODETYPE_TEXT] No size or arguments. |
static int |
OP_AND
**For advanced use only** [OP_AND] [length] {boolean expression} {boolean expression} returns: XBoolean |
static int |
OP_ARGUMENT
**For advanced use only** [OP_ARGUMENT] (Function argument.) [length] {expression} returns: XNodeSet XNumber XString XBoolean XRTree XObject |
static int |
OP_BOOL
**For advanced use only** [OP_BOOL] (cast operation) [length] {expression} returns: XBoolean |
static int |
OP_DIV
**For advanced use only** [OP_DIV] [length] {number expression} {number expression} returns: XNumber |
static int |
OP_EQUALS
**For advanced use only** [OP_EQUALS] [length] {expression} {expression} returns: XBoolean |
static int |
OP_EXTFUNCTION
**For advanced use only** [OP_EXTFUNCTION] (Extension function.) [length] [index to namespace token] [index to function name token] {OP_ARGUMENT} returns: XNodeSet XNumber XString XBoolean XRTree XObject |
static int |
OP_FUNCTION
**For advanced use only** [OP_FUNCTION] [length] [FUNC_name] {OP_ARGUMENT} [ENDOP] returns: XNodeSet XNumber XString XBoolean XRTree XObject |
static int |
OP_GROUP
**For advanced use only** [OP_GROUP] [length] {expression} returns: XNodeSet XNumber XString XBoolean XRTree XObject |
static int |
OP_GT
**For advanced use only** [OP_GT] (greater-than) [length] {number expression} {number expression} returns: XBoolean |
static int |
OP_GTE
**For advanced use only** [OP_GTE] (greater-than-or-equals) [length] {number expression} {number expression} returns: XBoolean |
static int |
OP_LITERAL
**For advanced use only** [OP_LITERAL] [3] [index to token] returns: XString |
static int |
OP_LOCATIONPATH
**For advanced use only** [OP_LOCATIONPATH] [length] {FROM_stepType} | {function} {predicate} [ENDOP] (Note that element and attribute namespaces and names can be wildcarded '*'.) returns: XNodeSet |
static int |
OP_LOCATIONPATHPATTERN
**For advanced use only** [OP_LOCATIONPATHPATTERN] [length] {FROM_stepType} | {function}{predicate} [ENDOP] returns: XNodeSet |
static int |
OP_LT
**For advanced use only** [OP_LT] (less-than) [length] {number expression} {number expression} returns: XBoolean |
static int |
OP_LTE
**For advanced use only** [OP_LTE] (less-than-or-equals) [length] {number expression} {number expression} returns: XBoolean |
static int |
OP_MATCHPATTERN
**For advanced use only** [OP_MATCHPATTERN] [length] {PathExpr}+ returns: XNodeSet |
static int |
OP_MINUS
**For advanced use only** [OP_MINUS] [length] {number expression} {number expression} returns: XNumber |
static int |
OP_MOD
**For advanced use only** [OP_MOD] [length] {number expression} {number expression} returns: XNumber |
static int |
OP_MULT
**For advanced use only** [OP_MULT] [length] {number expression} {number expression} returns: XNumber |
static int |
OP_NEG
**For advanced use only** [OP_NEG] [length] {number expression} returns: XNumber |
static int |
OP_NOTEQUALS
**For advanced use only** [OP_NOTEQUALS] [length] {expression} {expression} returns: XBoolean |
static int |
OP_NUMBER
**For advanced use only** [OP_NUMBER] (cast operation) [length] {expression} returns: XBoolean |
static int |
OP_NUMBERLIT
**For advanced use only** [OP_NUMBERLIT] (Number literal.) [3] [index to token] returns: XString |
static int |
OP_OR
**For advanced use only** [OP_OR] [length] {boolean expression} {boolean expression} returns: XBoolean |
static int |
OP_PLUS
**For advanced use only** [OP_PLUS] [length] {number expression} {number expression} returns: XNumber |
static int |
OP_PREDICATE
**For advanced use only** [OP_PREDICATE] [length] {expression} [ENDOP] (For safety) returns: XBoolean or XNumber |
static int |
OP_QUO
**For advanced use only** [OP_QUO] [length] {number expression} {number expression} returns: XNumber |
static int |
OP_STRING
**For advanced use only** [OP_STRING] (cast operation) [length] {expression} returns: XString |
static int |
OP_UNION
**For advanced use only** [OP_UNION] [length] {PathExpr}+ returns: XNodeSet |
static int |
OP_VARIABLE
**For advanced use only** [OP_VARIABLE] [4] [index to namespace token, or EMPTY] [index to function name token] returns: XString |
static int |
OP_XPATH
**For advanced use only** [OP_XPATH] [length] {expression} returns: XNodeSet XNumber XString XBoolean XRTree XObject |
| Constructor Summary | |
OpCodes()
|
|
| Methods inherited from class java.lang.Object |
equals,
getClass,
hashCode,
notify,
notifyAll,
toString,
wait,
wait,
wait |
| Field Detail |
public static final int ENDOP
public static final int EMPTY
public static final int ELEMWILDCARD
public static final int OP_XPATH
public static final int OP_OR
public static final int OP_AND
public static final int OP_NOTEQUALS
public static final int OP_EQUALS
public static final int OP_LTE
public static final int OP_LT
public static final int OP_GTE
public static final int OP_GT
public static final int OP_PLUS
public static final int OP_MINUS
public static final int OP_MULT
public static final int OP_DIV
public static final int OP_MOD
public static final int OP_QUO
public static final int OP_NEG
public static final int OP_STRING
public static final int OP_BOOL
public static final int OP_NUMBER
public static final int OP_UNION
public static final int OP_LITERAL
public static final int OP_VARIABLE
public static final int OP_GROUP
public static final int OP_EXTFUNCTION
public static final int OP_FUNCTION
public static final int OP_ARGUMENT
public static final int OP_NUMBERLIT
public static final int OP_LOCATIONPATH
public static final int OP_PREDICATE
public static final int OP_MATCHPATTERN
public static final int OP_LOCATIONPATHPATTERN
public static final int NODETYPE_COMMENT
public static final int NODETYPE_TEXT
public static final int NODETYPE_PI
public static final int NODETYPE_NODE
public static final int NODENAME
public static final int NODETYPE_ROOT
public static final int NODETYPE_ANYELEMENT
public static final int NODETYPE_FUNCTEST
public static final int AXES_START_TYPES
public static final int FROM_ANCESTORS
public static final int FROM_ANCESTORS_OR_SELF
public static final int FROM_ATTRIBUTES
public static final int FROM_CHILDREN
public static final int FROM_DESCENDANTS
public static final int FROM_DESCENDANTS_OR_SELF
public static final int FROM_FOLLOWING
public static final int FROM_FOLLOWING_SIBLINGS
public static final int FROM_PARENT
public static final int FROM_PRECEDING
public static final int FROM_PRECEDING_SIBLINGS
public static final int FROM_SELF
public static final int FROM_NAMESPACE
public static final int FROM_ROOT
public static final int MATCH_ATTRIBUTE
public static final int MATCH_ANY_ANCESTOR
public static final int MATCH_IMMEDIATE_ANCESTOR
public static final int AXES_END_TYPES
| Constructor Detail |
public OpCodes()
|
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