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RSL Constructors(3) | globus rsl | RSL Constructors(3) |
NAME¶
RSL Constructors -Functions¶
globus_rsl_t * globus_rsl_make_boolean (int operator, globus_list_t *children)
Function Documentation¶
globus_rsl_t* globus_rsl_make_boolean (intoperator, globus_list_t *children)¶
RSL boolean constructor. The globus_rsl_make_boolean() function creates a boolean composition of the RSL nodes in the list pointed to by children. The new RSL node which is returned contains a reference to the list, not a copy. Parameters:operator The boolean RSL operator to
use to join the RSL parse tree list pointed to by the children
parameter. This value must be one of GLOBUS_RSL_AND, GLOBUS_RSL_OR,
GLOBUS_RSL_MULTIREQ in order to create a valid RSL tree.
children Pointer to a list of RSL syntax trees to combine with the
boolean operation described by the operator parameter.
Returns:
The globus_rsl_make_boolean() function
returns a new RSL parse tree node that contains a shallow reference to the
list of values pointed to by the children parameter joined by the
operator value in the operator parameter. If an error occurs,
globus_rsl_make_boolean() returns NULL.
globus_rsl_t* globus_rsl_make_relation (intoperator, char *attributename, globus_rsl_value_t *value_sequence)¶
RSL relation constructor. The globus_rsl_make_relation() function creates a relation between the attribute named by the attributename parameter and the values pointed to by the value_sequence list. The new RSL relation node which is returned contains a reference to the attributename and value_sequence parameters, not a copy. Parameters:operator The RSL operator to use to
relate the RSL attribute name pointed to by the attributename parameter
and the values pointed to by the value_sequence parameter. This value
must be one of GLOBUS_RSL_EQ, GLOBUS_RSL_NEQ, GLOBUS_RSL_GT, GLOBUS_RSL_GTEQ,
GLOBUS_RSL_LT, or GLOBUS_RSL_LTEQ in order to create a valid RSL node.
attributename Pointer to a string naming the attribute of the new RSL
relation.
value_sequence Pointer to a sequence of RSL values to use in the new RSL
relation.
Returns:
The globus_rsl_make_relation() function
returns a new RSL parse tree node that contains a shallow reference to the
attribute name pointed to by the attributename parameter and the RSL
value sequence pointed to by the value_sequence parameter. If an error
occurs, globus_rsl_make_relation() returns NULL.
globus_rsl_value_t* globus_rsl_value_make_literal (char *string)¶
RSL literal constructor. The globus_rsl_value_make_literal() function creates a string literal RSL value node containing the value pointed to by the string parameter. The new RSL value node which is returned contains a reference to the string parameter, not a copy. Parameters:string The literal string to be used in
the new value.
Returns:
The globus_rsl_value_make_literal()
function returns a new RSL value node that contains a shallow reference to the
string pointed to by the string parameter. If an error occurs,
globus_rsl_value_make_literal() returns NULL.
globus_rsl_value_t* globus_rsl_value_make_sequence (globus_list_t *value_list)¶
RSL value sequence constructor. The globus_rsl_value_make_sequence() function creates a value sequence RSL node referring to the values pointed to by the value_list parameter. The new node returned by this function contains a reference to the value_list parameter, not a copy. Parameters:value_list A pointer to a list of
globus_rsl_value_t pointers.
Returns:
The globus_rsl_value_make_sequence()
function returns a new RSL value node that contains a shallow reference to the
list pointed to by the value_list parameter. If an error occurs,
globus_rsl_value_make_sequence() returns NULL.
globus_rsl_value_t* globus_rsl_value_make_variable (globus_rsl_value_t *sequence)¶
RSL variable reference constructor. The globus_rsl_value_make_variable() function creates a variable reference RSL node referring to the variable name contained in the value pointed to by sequence parameter. The new node returned by this function contains a reference to the sequence parameter, not a copy. Parameters:sequence A pointer to a RSL value
sequnce.
Returns:
The globus_rsl_value_make_variable()
function returns a new RSL value node that contains a shallow reference to the
value sequence pointed to by the sequence parameter. If an error
occurs, globus_rsl_value_make_variable() returns NULL.
globus_rsl_value_t* globus_rsl_value_make_concatenation (globus_rsl_value_t *left_value, globus_rsl_value_t *right_value)¶
RSL concatenation constructor. The globus_rsl_value_make_concatenation() function creates a concatenation of the values pointed to by the left_value and right_value parameters. The new node returned by this function contains a reference to these parameters' values, not a copy. Parameters:left_value A pointer to a RSL value to
act as the left side of the concatenation. This must be a string literal or
variable reference.
right_value A pointer to a RSL value to act as the right side of the
concatenation. This must be a string literal or variable reference.
Returns:
The
globus_rsl_value_make_concatenation() function returns a new RSL value
node that contains a shallow reference to the values pointed to by the
left_value and right_value parameters. If an error occurs,
globus_rsl_value_make_concatenation() returns NULL.
Author¶
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