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优化Sheet

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Redkale
2022-09-27 13:44:10 +08:00
parent b912e3a35f
commit 20a545825c
1 changed files with 31 additions and 18 deletions
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49
src/main/java/org/redkale/util/Sheet.java
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@@ -52,8 +52,9 @@ public class Sheet<T> implements java.io.Serializable, Iterable<T> {
public Sheet<T> copyTo(Sheet<T> copy) { public Sheet<T> copyTo(Sheet<T> copy) {
if (copy == null) return copy; if (copy == null) return copy;
copy.total = this.total; copy.total = this.total;
if (this.getRows() != null) { Collection<T> data = this.getRows();
copy.setRows(new ArrayList(this.getRows())); if (data != null) {
copy.setRows(new ArrayList(data));
} else { } else {
copy.rows = null; copy.rows = null;
} }
@@ -67,7 +68,8 @@ public class Sheet<T> implements java.io.Serializable, Iterable<T> {
*/ */
@ConvertColumn(index = 3) @ConvertColumn(index = 3)
public boolean isEmpty() { public boolean isEmpty() {
return this.rows == null || this.rows.isEmpty(); Collection<T> data = this.rows;
return data == null || data.isEmpty();
} }
@Override @Override
@@ -92,8 +94,9 @@ public class Sheet<T> implements java.io.Serializable, Iterable<T> {
} }
public List<T> list(boolean created) { public List<T> list(boolean created) {
if (this.rows == null) return created ? new ArrayList() : null; Collection<T> data = this.rows;
return (this.rows instanceof List) ? (List<T>) this.rows : new ArrayList(this.rows); if (data == null) return created ? new ArrayList() : null;
return (data instanceof List) ? (List<T>) data : new ArrayList(data);
} }
public void setRows(Collection<? extends T> data) { public void setRows(Collection<? extends T> data) {
@@ -102,53 +105,63 @@ public class Sheet<T> implements java.io.Serializable, Iterable<T> {
@Override @Override
public Iterator<T> iterator() { public Iterator<T> iterator() {
return (this.rows == null) ? new ArrayList<T>().iterator() : this.rows.iterator(); Collection<T> data = this.rows;
return (data == null) ? new ArrayList<T>().iterator() : data.iterator();
} }
@Override @Override
public void forEach(final Consumer<? super T> consumer) { public void forEach(final Consumer<? super T> consumer) {
if (consumer != null && this.rows != null && !this.rows.isEmpty()) { Collection<T> data = this.rows;
this.rows.forEach(consumer); if (consumer != null && data != null && !data.isEmpty()) {
data.forEach(consumer);
} }
} }
public <R> Sheet<R> map(Function<T, R> mapper) { public <R> Sheet<R> map(Function<T, R> mapper) {
if (this.isEmpty()) return (Sheet) this; Collection<T> data = this.rows;
if (data == null || data.isEmpty()) return (Sheet) this;
final List<R> list = new ArrayList<>(); final List<R> list = new ArrayList<>();
for (T item : this.rows) { for (T item : data) {
list.add(mapper.apply(item)); list.add(mapper.apply(item));
} }
return new Sheet<>(getTotal(), list); return new Sheet<>(getTotal(), list);
} }
public void forEachParallel(final Consumer<? super T> consumer) { public void forEachParallel(final Consumer<? super T> consumer) {
if (consumer != null && this.rows != null && !this.rows.isEmpty()) { Collection<T> data = this.rows;
this.rows.parallelStream().forEach(consumer); if (consumer != null && data != null && !data.isEmpty()) {
data.parallelStream().forEach(consumer);
} }
} }
@Override @Override
public Spliterator<T> spliterator() { public Spliterator<T> spliterator() {
return (this.rows == null) ? new ArrayList<T>().spliterator() : this.rows.spliterator(); Collection<T> data = this.rows;
return (data == null) ? new ArrayList<T>().spliterator() : data.spliterator();
} }
public Stream<T> stream() { public Stream<T> stream() {
return (this.rows == null) ? new ArrayList<T>().stream() : this.rows.stream(); Collection<T> data = this.rows;
return (data == null) ? new ArrayList<T>().stream() : data.stream();
} }
public Stream<T> parallelStream() { public Stream<T> parallelStream() {
return (this.rows == null) ? new ArrayList<T>().parallelStream() : this.rows.parallelStream(); Collection<T> data = this.rows;
return (data == null) ? new ArrayList<T>().parallelStream() : data.parallelStream();
} }
public Object[] toArray() { public Object[] toArray() {
return (this.rows == null) ? new ArrayList<T>().toArray() : this.rows.toArray(); Collection<T> data = this.rows;
return (data == null) ? new ArrayList<T>().toArray() : data.toArray();
} }
public <E> E[] toArray(E[] a) { public <E> E[] toArray(E[] a) {
return (this.rows == null) ? new ArrayList<E>().toArray(a) : this.rows.toArray(a); Collection<T> data = this.rows;
return (data == null) ? new ArrayList<E>().toArray(a) : data.toArray(a);
} }
public <E> E[] toArray(IntFunction<E[]> generator) { public <E> E[] toArray(IntFunction<E[]> generator) {
return (this.rows == null) ? new ArrayList<E>().toArray(generator.apply(0)) : this.rows.toArray(generator.apply(this.rows.size())); Collection<T> data = this.rows;
return (data == null) ? new ArrayList<E>().toArray(generator.apply(0)) : data.toArray(generator.apply(data.size()));
} }
} }