26 lines
810 B
Java
26 lines
810 B
Java
package net.sf.jasperreports.engine.fill;
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class JRDefaultNothingIncrementer extends JRAbstractExtendedIncrementer {
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private static JRDefaultNothingIncrementer mainInstance = new JRDefaultNothingIncrementer();
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public static JRDefaultNothingIncrementer getInstance() {
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return mainInstance;
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}
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public Object increment(JRCalculable variable, Object expressionValue, AbstractValueProvider valueProvider) {
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return expressionValue;
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}
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public Object combine(JRCalculable calculable, JRCalculable calculableValue, AbstractValueProvider valueProvider) {
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if (!calculableValue.isInitialized())
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return calculableValue.getValue();
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if (!calculable.isInitialized())
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return calculable.getValue();
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return null;
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}
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public Object initialValue() {
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return null;
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}
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}
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