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| package org.apache.tapestry.contrib.form.checkboxes; |
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| import org.apache.hivemind.ApplicationRuntimeException; |
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| import org.apache.tapestry.BaseComponent; |
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| import org.apache.tapestry.IRequestCycle; |
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| public abstract class ControlCheckbox extends BaseComponent |
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| { |
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| public abstract CheckboxGroup getGroup(); |
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| public CheckboxGroup getCheckboxGroup()
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| { |
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| CheckboxGroup group = getGroup();
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| if (group == null) {
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| IRequestCycle cycle = getPage().getRequestCycle();
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| group = (CheckboxGroup) cycle.getAttribute(CheckboxGroup.CHECKBOX_GROUP_ATTRIBUTE);
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| } |
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| if (group == null)
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| throw new ApplicationRuntimeException("The component " + getExtendedId() + " must be wrapped by a CheckboxGroup or the 'group' parameter must be set.");
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| return group;
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| } |
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| } |