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package com.avaje.ebeaninternal.server.el;

import java.util.ArrayList;
import java.util.List;

/**
 * Utility object used to build a ElPropertyChain.
 * 

* Builds a ElPropertyChain based on a chain of properties with dot separators. *

*

* This can navigate an object graph based on dot notation such as * order.customer.name. *

*/ public class ElPropertyChainBuilder { private final String expression; private final List chain = new ArrayList(); private final boolean embedded; private boolean containsMany; /** * Create with the original expression. */ public ElPropertyChainBuilder(boolean embedded, String expression) { this.embedded = embedded; this.expression = expression; } public boolean isContainsMany() { return containsMany; } public void setContainsMany() { this.containsMany = true; } public String getExpression() { return expression; } /** * Add a ElGetValue element to the chain. */ public ElPropertyChainBuilder add(ElPropertyValue element) { if (element == null) { throw new NullPointerException("element null in expression " + expression); } chain.add(element); return this; } /** * Build the immutable ElGetChain from the build information. */ public ElPropertyChain build() { return new ElPropertyChain(containsMany, embedded, expression, chain.toArray(new ElPropertyValue[chain.size()])); } }




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