public Set<String> getVariableNameUsedBy(String variableName) {
Set<String> statements = statementVariableRef.getStatementNamesForVar(variableName);
if ((statements == null) || (statements.isEmpty())) {
return Collections.emptySet();
}
return Collections.unmodifiableSet(statements);
}
public boolean removeVariable(String name, boolean force) throws ConfigurationException {
if (!force) {
Set<String> statements = statementVariableRef.getStatementNamesForVar(name);
if ((statements != null) && (!statements.isEmpty())) {
throw new ConfigurationException(
"Variable '" + name + "' is in use by one or more statements");
}
}
VariableReader reader = variableService.getReader(name);
if (reader == null) {
return false;
}
variableService.removeVariable(name);
statementVariableRef.removeReferencesVariable(name);
statementVariableRef.removeConfiguredVariable(name);
return true;
}