Java Code Examples for javax.servlet.jsp.tagext.Tag#getParent()
The following examples show how to use
javax.servlet.jsp.tagext.Tag#getParent() .
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Example 1
Source File: TagUtils.java From spring-analysis-note with MIT License | 6 votes |
/** * Determine whether the supplied {@link Tag} has any ancestor tag * of the supplied type. * @param tag the tag whose ancestors are to be checked * @param ancestorTagClass the ancestor {@link Class} being searched for * @return {@code true} if the supplied {@link Tag} has any ancestor tag * of the supplied type * @throws IllegalArgumentException if either of the supplied arguments is {@code null}; * or if the supplied {@code ancestorTagClass} is not type-assignable to * the {@link Tag} class */ public static boolean hasAncestorOfType(Tag tag, Class<?> ancestorTagClass) { Assert.notNull(tag, "Tag cannot be null"); Assert.notNull(ancestorTagClass, "Ancestor tag class cannot be null"); if (!Tag.class.isAssignableFrom(ancestorTagClass)) { throw new IllegalArgumentException( "Class '" + ancestorTagClass.getName() + "' is not a valid Tag type"); } Tag ancestor = tag.getParent(); while (ancestor != null) { if (ancestorTagClass.isAssignableFrom(ancestor.getClass())) { return true; } ancestor = ancestor.getParent(); } return false; }
Example 2
Source File: TagUtils.java From java-technology-stack with MIT License | 6 votes |
/** * Determine whether the supplied {@link Tag} has any ancestor tag * of the supplied type. * @param tag the tag whose ancestors are to be checked * @param ancestorTagClass the ancestor {@link Class} being searched for * @return {@code true} if the supplied {@link Tag} has any ancestor tag * of the supplied type * @throws IllegalArgumentException if either of the supplied arguments is {@code null}; * or if the supplied {@code ancestorTagClass} is not type-assignable to * the {@link Tag} class */ public static boolean hasAncestorOfType(Tag tag, Class<?> ancestorTagClass) { Assert.notNull(tag, "Tag cannot be null"); Assert.notNull(ancestorTagClass, "Ancestor tag class cannot be null"); if (!Tag.class.isAssignableFrom(ancestorTagClass)) { throw new IllegalArgumentException( "Class '" + ancestorTagClass.getName() + "' is not a valid Tag type"); } Tag ancestor = tag.getParent(); while (ancestor != null) { if (ancestorTagClass.isAssignableFrom(ancestor.getClass())) { return true; } ancestor = ancestor.getParent(); } return false; }
Example 3
Source File: TagUtils.java From lams with GNU General Public License v2.0 | 6 votes |
/** * Determine whether the supplied {@link Tag} has any ancestor tag * of the supplied type. * @param tag the tag whose ancestors are to be checked * @param ancestorTagClass the ancestor {@link Class} being searched for * @return {@code true} if the supplied {@link Tag} has any ancestor tag * of the supplied type * @throws IllegalArgumentException if either of the supplied arguments is {@code null}; * or if the supplied {@code ancestorTagClass} is not type-assignable to * the {@link Tag} class */ public static boolean hasAncestorOfType(Tag tag, Class<?> ancestorTagClass) { Assert.notNull(tag, "Tag cannot be null"); Assert.notNull(ancestorTagClass, "Ancestor tag class cannot be null"); if (!Tag.class.isAssignableFrom(ancestorTagClass)) { throw new IllegalArgumentException( "Class '" + ancestorTagClass.getName() + "' is not a valid Tag type"); } Tag ancestor = tag.getParent(); while (ancestor != null) { if (ancestorTagClass.isAssignableFrom(ancestor.getClass())) { return true; } ancestor = ancestor.getParent(); } return false; }
Example 4
Source File: TagUtils.java From spring4-understanding with Apache License 2.0 | 6 votes |
/** * Determine whether the supplied {@link Tag} has any ancestor tag * of the supplied type. * @param tag the tag whose ancestors are to be checked * @param ancestorTagClass the ancestor {@link Class} being searched for * @return {@code true} if the supplied {@link Tag} has any ancestor tag * of the supplied type * @throws IllegalArgumentException if either of the supplied arguments is {@code null}; * or if the supplied {@code ancestorTagClass} is not type-assignable to * the {@link Tag} class */ public static boolean hasAncestorOfType(Tag tag, Class<?> ancestorTagClass) { Assert.notNull(tag, "Tag cannot be null"); Assert.notNull(ancestorTagClass, "Ancestor tag class cannot be null"); if (!Tag.class.isAssignableFrom(ancestorTagClass)) { throw new IllegalArgumentException( "Class '" + ancestorTagClass.getName() + "' is not a valid Tag type"); } Tag ancestor = tag.getParent(); while (ancestor != null) { if (ancestorTagClass.isAssignableFrom(ancestor.getClass())) { return true; } ancestor = ancestor.getParent(); } return false; }
Example 5
Source File: URLParTag.java From entando-components with GNU Lesser General Public License v3.0 | 6 votes |
@Override public int doEndTag() throws JspException { BodyContent body = this.getBodyContent(); String value = body.getString(); URLTag parentTag = null; try { Tag tag = this; do { tag = tag.getParent(); } while (!(tag instanceof URLTag)); parentTag = (URLTag) tag; } catch (RuntimeException e) { throw new JspException("Error nesting parameter in url tag.", e); } parentTag.addParameter(this.getName(), value); return EVAL_PAGE; }
Example 6
Source File: ColumnTag.java From uyuni with GNU General Public License v2.0 | 5 votes |
/** * Returns the ListDisplayTag that serves as the parent tag. * Returns null if no ListDisplayTag is found. * @return the parent ListDisplayTag */ public UnpagedListDisplayTag findUnpagedListDisplay() { Tag tagParent = getParent(); while (tagParent != null && !(tagParent instanceof UnpagedListDisplayTag)) { tagParent = tagParent.getParent(); } return (UnpagedListDisplayTag) tagParent; }
Example 7
Source File: ColumnTag.java From uyuni with GNU General Public License v2.0 | 5 votes |
/** * Returns the ListDisplayTag that serves as the parent tag. * Returns null if no ListDisplayTag is found. * @return the parent ListDisplayTag */ public ListDisplayTag findListDisplay() { Tag tagParent = getParent(); while (tagParent != null && !(tagParent instanceof ListDisplayTag)) { tagParent = tagParent.getParent(); } return (ListDisplayTag) tagParent; }
Example 8
Source File: ColumnTag.java From spacewalk with GNU General Public License v2.0 | 5 votes |
/** * Returns the ListDisplayTag that serves as the parent tag. * Returns null if no ListDisplayTag is found. * @return the parent ListDisplayTag */ public UnpagedListDisplayTag findUnpagedListDisplay() { Tag tagParent = getParent(); while (tagParent != null && !(tagParent instanceof UnpagedListDisplayTag)) { tagParent = tagParent.getParent(); } return (UnpagedListDisplayTag) tagParent; }
Example 9
Source File: ColumnTag.java From spacewalk with GNU General Public License v2.0 | 5 votes |
/** * Returns the ListDisplayTag that serves as the parent tag. * Returns null if no ListDisplayTag is found. * @return the parent ListDisplayTag */ public ListDisplayTag findListDisplay() { Tag tagParent = getParent(); while (tagParent != null && !(tagParent instanceof ListDisplayTag)) { tagParent = tagParent.getParent(); } return (ListDisplayTag) tagParent; }