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java.lang.Object org.apache.solr.handler.dataimport.VariableResolver
public class VariableResolver
A set of nested maps that can resolve variables by namespaces. Variables are enclosed with a dollar sign then an opening curly brace, ending with a closing curly brace. Namespaces are delimited with '.' (period).
This class also has special logic to resolve evaluator calls by recognizing the reserved function namespace: dataimporter.functions.xxx
This class caches strings that have already been resolved from the current dih import.
This API is experimental and may change in the future.
Field Summary | |
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static String |
FUNCTIONS_NAMESPACE
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static String |
FUNCTIONS_NAMESPACE_SHORT
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Constructor Summary | |
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VariableResolver()
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VariableResolver(Map<String,Object> defaults)
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VariableResolver(Properties defaults)
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Method Summary | |
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void |
addNamespace(String name,
Map<String,Object> newMap)
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List<String> |
getVariables(String template)
Get a list of variables embedded in the template string. |
void |
removeNamespace(String name)
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String |
replaceTokens(String template)
Given a String with place holders, replace them with the value tokens. |
Object |
resolve(String name)
Resolves a given value with a name |
void |
setEvaluators(Map<String,Evaluator> evaluators)
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Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Field Detail |
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public static final String FUNCTIONS_NAMESPACE
public static final String FUNCTIONS_NAMESPACE_SHORT
Constructor Detail |
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public VariableResolver()
public VariableResolver(Properties defaults)
public VariableResolver(Map<String,Object> defaults)
Method Detail |
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public Object resolve(String name)
name
- the String to be resolved
public String replaceTokens(String template)
public List<String> getVariables(String template)
public void addNamespace(String name, Map<String,Object> newMap)
public void removeNamespace(String name)
public void setEvaluators(Map<String,Evaluator> evaluators)
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